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Seobuk Hospital is a hospital directly operated by the Seoul Metropolitan Government and has mainly served as a tuberculosis hospital. It is a Seoul city governmental public hospital which primarily provides inpatients and out patients treatment to the elderly, many of them suffering from dementia patients and the marginalized, such as the homeless and the disabled. From March 2nd, 2020, to May 31th, 2022 Seobuk hospital was appointed to treat COVID-19 patients that required stationary treatment. South Korea’s COVID-19 mortality rate has below 0.1% while in other countries such as the United States and in Europe the mortality rate varies between 1 and 2 %. We believe that it is due to the quarantine system which was put in place right from the start of the COVID-19 pandemic in Febuary 2020. Patients testing positive for COVID-19 were hospitalized free of charge and they were hospitalized usually in early period (2 - 3 days after COVID -19 testing) of COVID-19 disease. In this paper we analyzed the disease patterns of patients hospitalized with COVID-19 using the data from the 4,531 patients charts which received treatment in Seobuk hospital between March 2nd, 2020 and May 31st, 2022 by looking at their clinical features and medication history and medications for treatment. The key element of the guideline of our treatment was to administer Veklury (Remdesivir) or Paxlovid despite its high cost in the early period of the COVID-19 disease when oxygen saturation dropped below 94%. Nowadays we administer Veklury and Paxlovid right after COVID-19 is daignosed free of charge for the proper patient. It is believed that the current quarantine system in South Korea which allows patients to be treated with Veklury (Remdesivir) in hospitals at the initial stage of the infection and with an early Paxlovid administration in home treatment has contributed to lowering the death rate in South Korea.

Four sesquiterpenoids were isolated from an ethyl acetate-soluble fraction of A. princeps ethanolic extract: seco-tanapartholide B (5-epi-seco-tanapartholide A) (1), 4-epi-seco-tanapartholide A (2), 11,13-dehydrodesacetylmatricarin (3) and desacetylmatricarin (4). Compounds 1 − 3 dose-dependently inhibited nitric oxide (NO) production in lipopolysaccharide (LPS)-activated macrophages. These compounds also decreased mRNA and protein expression levels of inducible NO synthase and cyclooxygenase-2 as well as mRNA levels of pro-inflammatory cytokines (interleukin-1β and tumour necrosis factor-α) in LPS-stimulated RAW 264.7 macrophages. Moreover, compound 3 effectively enhanced the expression of heme oxygenase-1 (HO-1) in macrophages in the presence or absence of LPS. Additionally, the exocyclic methylene of α-methylene-γ-lactone moiety of compound 3 was found to be essential for the activation of the NF erythroid 2-related factor 2 (Nrf2)/HO-1 pathway. Here, we firstly report the isolation of compounds 3 and 4 from A. princeps and the anti-inflammatory activity of compound 3 by up-regulation of Nrf2/HO-1 pathway.

BackgroundThe genetic basis of amyloid β (Aβ) deposition in subcortical vascular cognitive impairment (SVCI) is still unknown. Here, we investigated genetic variants involved in Aβ deposition in patients with SVCI.MethodsWe recruited a total of 110 patients with SVCI and 424 patients with Alzheimer’s disease-related cognitive impairment (ADCI), who underwent Aβ positron emission tomography and genetic testing. Using candidate AD-associated single nucleotide polymorphisms (SNPs) that were previously identified, we investigated Aβ-associated SNPs that were shared or distinct between patients with SVCI and those with ADCI. Replication analyses were performed using the Alzheimer’s Disease Neuroimaging Initiative (ADNI) and Religious Orders Study and Rush Memory and Aging Project cohorts (ROS/MAP).ResultsWe identified a novel SNP, rs4732728, which showed distinct associations with Aβ positivity in patients with SVCI (Pinteraction = 1.49 × 10–5); rs4732728 was associated with increased Aβ positivity in SVCI but decreased Aβ positivity in ADCI. This pattern was also observed in ADNI and ROS/MAP cohorts. Prediction performance for Aβ positivity in patients with SVCI increased (area under the receiver operating characteristic curve = 0.780; 95% confidence interval = 0.757–0.803) when rs4732728 was included. Cis-expression quantitative trait loci analysis demonstrated that rs4732728 was associated with EPHX2 expression in the brain (normalized effect size = −0.182, P = 0.005).ConclusionThe novel genetic variants associated with EPHX2 showed a distinct effect on Aβ deposition between SVCI and ADCI. This finding may provide a potential pre-screening marker for Aβ positivity and a candidate therapeutic target for SVCI.

Data for paper "Hemispherically asymmetric Hadley-cell response to CO2 removal"

35. Moolapheonoides acutifalcatus Kobayashi and Ishimaru, 2005 ůêėśêŔŋầNjạ (Fig. 10C) Material examined. 1 ind., Yeongheung Shelter, 27 August 2021; 1 ind., Chuja Port, 27 August 2021; 4 inds., Mukri Port, 28 August 2021; 1 ind., Jikgudo Island, 29 August 2021. Distribution. Korea (south and east coasts), Japan. Genus Terepeltopes Hirayama, 1983 ŔỹśêŔŋầNjạ, Published as part of Kim, Kyung-Won, Zhang, Xin, Choi, Jae-Hong, Kim, Jun & Kim, So-Yeon Shin and Young-Hyo, 2023, Amphipods (Crustacea: Malacostraca) fauna from Chujado Island in Korea, pp. 1-26 in Journal of Species Research 12 (1) on page 9, DOI: 10.12651/JSR.2023.12.1.001, http://zenodo.org/record/8120103

34. Cyproidea liodactyla Hirayama, 1978 ùśêŔŋầNjạ (Fig. 10B) Material examined. 1 ind., Yecho-ri Port, 28 August 2021. Distribution. Korea (Jejudo Island), Japan. Genus Moolapheonoides J.L. Barnard, 1974 ḢÑśêŔŋầNjạ, Published as part of Kim, Kyung-Won, Zhang, Xin, Choi, Jae-Hong, Kim, Jun & Kim, So-Yeon Shin and Young-Hyo, 2023, Amphipods (Crustacea: Malacostraca) fauna from Chujado Island in Korea, pp. 1-26 in Journal of Species Research 12 (1) on page 9, DOI: 10.12651/JSR.2023.12.1.001, http://zenodo.org/record/8120103

Genus Guernea Chevreux, 1887 ûöäê꼬NầNjạṩ, Published as part of Kim, Kyung-Won, Zhang, Xin, Choi, Jae-Hong, Kim, Jun & Kim, So-Yeon Shin and Young-Hyo, 2023, Amphipods (Crustacea: Malacostraca) fauna from Chujado Island in Korea, pp. 1-26 in Journal of Species Research 12 (1) on page 9, DOI: 10.12651/JSR.2023.12.1.001, http://zenodo.org/record/8120103

42. Paradexamine rotundogena Zhang, Kim and Kim, 2022 ǭȓģầḣṄäê꼬NầNjạ (Fig. 11B) Material examined. 5 inds., Mukri Port, 28 August 2021. Distribution. Korea (south coast)., Published as part of Kim, Kyung-Won, Zhang, Xin, Choi, Jae-Hong, Kim, Jun & Kim, So-Yeon Shin and Young-Hyo, 2023, Amphipods (Crustacea: Malacostraca) fauna from Chujado Island in Korea, pp. 1-26 in Journal of Species Research 12 (1) on pages 9-10, DOI: 10.12651/JSR.2023.12.1.001, http://zenodo.org/record/8120103, {"references":["Zhang, X., K. W. Kim and Y. H. Kim. 2022. Two new spe- cies of the genus Paradexamine (Crustacea, Amphipoda, Dexaminidae) from Korean Waters. ZooKeys 1117: 37 - 52."]}

62. Photis bronca Jung, Coleman and Yoon, 2019 ūήėÑ형꼬NµNầNjạ (Fig. 13F) Material examined. 1 ind., Southern end of Hachujado, 26 August 2021; 1 ind., Chuja Bridge, 27 August 2021; 2 inds., Damuraemi Island, 27 August 2021. Distribution. Korea (Jejudo Island and south coast)., Published as part of Kim, Kyung-Won, Zhang, Xin, Choi, Jae-Hong, Kim, Jun & Kim, So-Yeon Shin and Young-Hyo, 2023, Amphipods (Crustacea: Malacostraca) fauna from Chujado Island in Korea, pp. 1-26 in Journal of Species Research 12 (1) on page 14, DOI: 10.12651/JSR.2023.12.1.001, http://zenodo.org/record/8120103, {"references":["Jung, T. W., C. O. Coleman and S. M. Yoon. 2019. Taxonomic study on the photid amphipods (Senticaudata, Corophiida, Photoidea, Photidae) from Korean waters, with descriptions of a new genus and seven new species. ZooKeys 886: 1 - 59."]}

18. Caprella equilibra Say, 1818 ḣấḣṄص1ḇNj (Fig. 8B) Material examined. 9 inds., Sinyang Port, 26 August 2021; 8 inds., Damuraemi Island, 27 August 2021; 1 ind., Chuja Port, 27 August 2021; 120 inds., Sinyang 2-ri, Chujado Island, 28 August 2021; 200 inds., Yecho-ri Port, 28 August 2021; 29 inds., Jikgudo Island, 29 August 2021; 2 inds., Nabalon Cliff, 29 August 2021. Distribution. Korea (Jejudo Island, west, south, and east coasts), Africa, Brazil, Chile, Colombia, Malaysia, Maxico, Panama, The Black Sea, The Mediterranean Sea, U.S.A., Published as part of Kim, Kyung-Won, Zhang, Xin, Choi, Jae-Hong, Kim, Jun & Kim, So-Yeon Shin and Young-Hyo, 2023, Amphipods (Crustacea: Malacostraca) fauna from Chujado Island in Korea, pp. 1-26 in Journal of Species Research 12 (1) on page 7, DOI: 10.12651/JSR.2023.12.1.001, http://zenodo.org/record/8120103

Family Dexaminidae Leach, 1814 äê꼬NầNjạǔ, Published as part of Kim, Kyung-Won, Zhang, Xin, Choi, Jae-Hong, Kim, Jun & Kim, So-Yeon Shin and Young-Hyo, 2023, Amphipods (Crustacea: Malacostraca) fauna from Chujado Island in Korea, pp. 1-26 in Journal of Species Research 12 (1) on page 9, DOI: 10.12651/JSR.2023.12.1.001, http://zenodo.org/record/8120103

22. Caprella polyacantha Utinomi, 1947 ḎḽḣṄص1ḇNj (Fig. 8F) Material examined. 1 ind., Damuraemi Island, 27 August 2021. Distribution. Korea (south and east coasts), Japan, Russia., Published as part of Kim, Kyung-Won, Zhang, Xin, Choi, Jae-Hong, Kim, Jun & Kim, So-Yeon Shin and Young-Hyo, 2023, Amphipods (Crustacea: Malacostraca) fauna from Chujado Island in Korea, pp. 1-26 in Journal of Species Research 12 (1) on page 8, DOI: 10.12651/JSR.2023.12.1.001, http://zenodo.org/record/8120103

55. Orientomaera brevispina (Kim and Kim, 1991) ǎêḣṄḁNƞầNjạ (Fig. 12G) Material examined. 1 ind., Southern end of Hachujado, 26 August 2021; 1 ind., Damuraemi Island, 27 August 2021; 1 ind., Jikgudo Island, 29 August 2021. Distribution. Korea (south and east coasts), Japan., Published as part of Kim, Kyung-Won, Zhang, Xin, Choi, Jae-Hong, Kim, Jun & Kim, So-Yeon Shin and Young-Hyo, 2023, Amphipods (Crustacea: Malacostraca) fauna from Chujado Island in Korea, pp. 1-26 in Journal of Species Research 12 (1) on page 11, DOI: 10.12651/JSR.2023.12.1.001, http://zenodo.org/record/8120103, {"references":["Kim, W. and C. B. Kim. 1991. The marine amphipod crustaceans of Ulreung Island, Korea: part I. The Korean Journal of Zoology 34 (2): 232 - 252."]}

51. Leucothoe nagatai Ishimaru, 1985 ǎêėḣŵŝḙầNjạ (Fig. 12C) Material examined. 4 inds., Sinyang Port, 28 August 2021. Distribution. Korea (Jejudo Island and east coast), Japan., Published as part of Kim, Kyung-Won, Zhang, Xin, Choi, Jae-Hong, Kim, Jun & Kim, So-Yeon Shin and Young-Hyo, 2023, Amphipods (Crustacea: Malacostraca) fauna from Chujado Island in Korea, pp. 1-26 in Journal of Species Research 12 (1) on page 10, DOI: 10.12651/JSR.2023.12.1.001, http://zenodo.org/record/8120103

9. Sunamphitoe baegryeongensis (Kim and Kim, 1988) ḍợPùầNjạ (Fig. 7A) Material examined. 1 ind., Sinyang Port, 26 August 2021. Distribution. Korea (west, south, and east coasts)., Published as part of Kim, Kyung-Won, Zhang, Xin, Choi, Jae-Hong, Kim, Jun & Kim, So-Yeon Shin and Young-Hyo, 2023, Amphipods (Crustacea: Malacostraca) fauna from Chujado Island in Korea, pp. 1-26 in Journal of Species Research 12 (1) on page 4, DOI: 10.12651/JSR.2023.12.1.001, http://zenodo.org/record/8120103, {"references":["Kim, H. S. and C. B. Kim. 1988. Marine gammaridean Amphipoda (Crustacea) of the family Ampithoidae from Ko- rea. The Korean Journal of Systematic Zoology Special Issue, 2: 107 - 134."]}

5. Ampithoe lacertosa Spence Bate, 1858 태%ġùầNjạ (Fig. 6E) Material examined. 13 inds., Sinyang Port, 28 August 2021; 4 inds., Yecho-ri Port, 28 August 2021; 51 inds., Chuja Port, 29 August 2021. Distribution. Korea (Jejudo Island, west, south, and east coasts), Japan, The Pacific, U.S.A., Published as part of Kim, Kyung-Won, Zhang, Xin, Choi, Jae-Hong, Kim, Jun & Kim, So-Yeon Shin and Young-Hyo, 2023, Amphipods (Crustacea: Malacostraca) fauna from Chujado Island in Korea, pp. 1-26 in Journal of Species Research 12 (1) on page 2, DOI: 10.12651/JSR.2023.12.1.001, http://zenodo.org/record/8120103

33. Sinocorophium jindoense Heo and Kim, 2017 ṈPẹầNjạ (Fig. 10A) Material examined. 1 ind., Southern end of Hachujado, 26 August 2021. Distribution. Korea (west and south coasts). Family Cyproideidae J.L. Barnard, 1974 śêŔŋầNjạǔ Genus Cyproidea Haswell, 1880 ùśêŔŋầNjạṩ, Published as part of Kim, Kyung-Won, Zhang, Xin, Choi, Jae-Hong, Kim, Jun & Kim, So-Yeon Shin and Young-Hyo, 2023, Amphipods (Crustacea: Malacostraca) fauna from Chujado Island in Korea, pp. 1-26 in Journal of Species Research 12 (1) on page 9, DOI: 10.12651/JSR.2023.12.1.001, http://zenodo.org/record/8120103

26. Caprella tsugarensis Utinomi, 1947 ǎêṽص1ḇNj (Fig. 9B) Material examined. 15 inds., Damuraemi Island, 27 August 2021; 1 ind., Jikgudo Island, 29 August 2021; 8 inds., Nabalon Cliff, 29 August 2021. Distribution. Korea (Jejudo Island, west, south, and east coasts), Japan, Russia., Published as part of Kim, Kyung-Won, Zhang, Xin, Choi, Jae-Hong, Kim, Jun & Kim, So-Yeon Shin and Young-Hyo, 2023, Amphipods (Crustacea: Malacostraca) fauna from Chujado Island in Korea, pp. 1-26 in Journal of Species Research 12 (1) on page 8, DOI: 10.12651/JSR.2023.12.1.001, http://zenodo.org/record/8120103

21. Caprella penantis Leach, 1814 ǭȓďḣḑص1ḇNj (Fig. 8E) Material examined. 4 inds., Sinyang Port, 26 August 2021; 2 inds., Chuja Bridge, 27 August 2021; 3 inds., Damuraemi Island, 27 August 2021; 56 inds., Chuja Port, 27 August 2021; 231 inds., Sinyang 2-ri, Chujado Island, 28 August 2021; 251 inds., Yecho-ri Port, 28 August 2021; 10 inds., Mukri Port, 28 August 2021; 48 inds., Chuja Port, 29 August 2021. Distribution. Korea (Jejudo Island, west, south, and east coasts), worldwide., Published as part of Kim, Kyung-Won, Zhang, Xin, Choi, Jae-Hong, Kim, Jun & Kim, So-Yeon Shin and Young-Hyo, 2023, Amphipods (Crustacea: Malacostraca) fauna from Chujado Island in Korea, pp. 1-26 in Journal of Species Research 12 (1) on pages 7-8, DOI: 10.12651/JSR.2023.12.1.001, http://zenodo.org/record/8120103

56. Quadrimaera pacifica (Schellenberg, 1938) 태%ġḁNƞầNjạ (Fig. 12H) Material examined. 3 inds., Southern end of Hachujado, 26 August 2021; 5 inds., Jikgudo Island, 29 August 2021. Distribution. Korea (Jejudo Island, south and east coasts), China, Japan, Hawaii, Micronesia, South Africa, Southern Polynesia., Published as part of Kim, Kyung-Won, Zhang, Xin, Choi, Jae-Hong, Kim, Jun & Kim, So-Yeon Shin and Young-Hyo, 2023, Amphipods (Crustacea: Malacostraca) fauna from Chujado Island in Korea, pp. 1-26 in Journal of Species Research 12 (1) on page 11, DOI: 10.12651/JSR.2023.12.1.001, http://zenodo.org/record/8120103

45. Protohyale (Boreohyale) triangulata (Hiwatari, 2003) ljAEėĝŀṘÑầNjạ (Fig. 11E) Material examined. 17 inds., Southern end of Hachujado, 26 August 2021; 10 inds., Damuraemi Island, 27 August 2021; 1 ind., Yecho-ri, 28 August 2021; 5 inds., Sinyang 2-ri, Chujado Island, 28 August 2021; 30 inds., Jikgudo Island, 29 August 2021. Distribution. Korea (Jejudo Island, west, south, and east coasts), Japan. Family Ischyroceridae Stebbing, 1899 âũ꼬NầNjạäÑǔ Genus Ericthonius H. Milne Edwards, 1830, Published as part of Kim, Kyung-Won, Zhang, Xin, Choi, Jae-Hong, Kim, Jun & Kim, So-Yeon Shin and Young-Hyo, 2023, Amphipods (Crustacea: Malacostraca) fauna from Chujado Island in Korea, pp. 1-26 in Journal of Species Research 12 (1) on page 10, DOI: 10.12651/JSR.2023.12.1.001, http://zenodo.org/record/8120103

Genus Pseudoproto Mayer, 1903 의ñṄص1ḇNjṩ, Published as part of Kim, Kyung-Won, Zhang, Xin, Choi, Jae-Hong, Kim, Jun & Kim, So-Yeon Shin and Young-Hyo, 2023, Amphipods (Crustacea: Malacostraca) fauna from Chujado Island in Korea, pp. 1-26 in Journal of Species Research 12 (1) on page 8, DOI: 10.12651/JSR.2023.12.1.001, http://zenodo.org/record/8120103

61. Gammaropsis japonica (Nagata, 1961) Ḫōâũ꼬NầNjạ (Fig. 13E) Material examined. 10 inds., Damuraemi Island, 27 August 2021; 35 inds., Sinyang Port, 28 August 2021; 4 inds., Yecho-ri Port, 28 August 2021; 20 inds., Jikgudo Island, 29 August 2021; 25 inds., Nabalon Cliff, 29 August 2021. Distribution. Korea (Jejudo Island, west, south, and east coasts), China, Japan., Published as part of Kim, Kyung-Won, Zhang, Xin, Choi, Jae-Hong, Kim, Jun & Kim, So-Yeon Shin and Young-Hyo, 2023, Amphipods (Crustacea: Malacostraca) fauna from Chujado Island in Korea, pp. 1-26 in Journal of Species Research 12 (1) on page 14, DOI: 10.12651/JSR.2023.12.1.001, http://zenodo.org/record/8120103

Family Photidae Boeck, 1871 꼬NµNầNjạǔ, Published as part of Kim, Kyung-Won, Zhang, Xin, Choi, Jae-Hong, Kim, Jun & Kim, So-Yeon Shin and Young-Hyo, 2023, Amphipods (Crustacea: Malacostraca) fauna from Chujado Island in Korea, pp. 1-26 in Journal of Species Research 12 (1) on page 14, DOI: 10.12651/JSR.2023.12.1.001, http://zenodo.org/record/8120103

23. Caprella scaura Templeton, 1836 ȒĮHNص1ḇNj (Fig. 8G) Material examined. 4 inds., Southern end of Hachujado, 26 August 2021; 7 inds., Sinyang Port, 26 August 2021; 7 inds., Yeongheung Shelter, 27 August 2021; 4 inds., Damuraemi Island, 27 August 2021; 4 inds., Chuja Port, 27 August 2021; 8 inds., Yecho-ri, 28 August 2021; 146 inds., Sinyang 2-ri, Chujado Island, 28 August 2021; 151 inds., Yecho-ri Port, 28 August 2021; 5 inds., Mukri Port, 28 August 2021; 1 ind., Jikgudo Island, 29 August 2021; 6 inds., Nabalon Cliff, 29 August 2021; 4 inds., Chuja Port, 29 August 2021. Distribution. Korea (Jejudo Island, west, south, and east coasts), worldwide., Published as part of Kim, Kyung-Won, Zhang, Xin, Choi, Jae-Hong, Kim, Jun & Kim, So-Yeon Shin and Young-Hyo, 2023, Amphipods (Crustacea: Malacostraca) fauna from Chujado Island in Korea, pp. 1-26 in Journal of Species Research 12 (1) on page 8, DOI: 10.12651/JSR.2023.12.1.001, http://zenodo.org/record/8120103

Family Stenothoidae Boeck, 1871 DZṖÑầNjạǔ Genus Stenothoe Dana, 1852, Published as part of Kim, Kyung-Won, Zhang, Xin, Choi, Jae-Hong, Kim, Jun & Kim, So-Yeon Shin and Young-Hyo, 2023, Amphipods (Crustacea: Malacostraca) fauna from Chujado Island in Korea, pp. 1-26 in Journal of Species Research 12 (1) on page 14, DOI: 10.12651/JSR.2023.12.1.001, http://zenodo.org/record/8120103

6. Ampithoe valida shimizuensis Stephensen, 1944 ²ṚėùầNjạ (Fig. 6F) Material examined. 1 ind., Sinyang 2-ri, Hachujado Island, 26 August 2021; 14 inds., Sinyang Port, 28 August 2021; 20 inds., Yecho-ri Port, 28 August 2021; 3 inds., Chuja Port, 29 August 2021. Distribution. Korea (Jejudo Island, west, south, and east coasts), Japan., Published as part of Kim, Kyung-Won, Zhang, Xin, Choi, Jae-Hong, Kim, Jun & Kim, So-Yeon Shin and Young-Hyo, 2023, Amphipods (Crustacea: Malacostraca) fauna from Chujado Island in Korea, pp. 1-26 in Journal of Species Research 12 (1) on page 2, DOI: 10.12651/JSR.2023.12.1.001, http://zenodo.org/record/8120103

63. Podocerus hoonsooi Kim and Kim, 1991 āẘű배ầNjạ (Fig. 13G) Material examined. 2 inds., Chuja Port, 27 August 2021; 1 ind., Jikgudo Island, 29 August 2021. Distribution. Korea (Jejudo Island, south and east coasts)., Published as part of Kim, Kyung-Won, Zhang, Xin, Choi, Jae-Hong, Kim, Jun & Kim, So-Yeon Shin and Young-Hyo, 2023, Amphipods (Crustacea: Malacostraca) fauna from Chujado Island in Korea, pp. 1-26 in Journal of Species Research 12 (1) on page 14, DOI: 10.12651/JSR.2023.12.1.001, http://zenodo.org/record/8120103, {"references":["Kim, W. and C. B. Kim. 1991. The marine amphipod crustaceans of Ulreung Island, Korea: part I. The Korean Journal of Zoology 34 (2): 232 - 252."]}

7. Ampithoe waialua J.L. Barnard, 1970 ăêėùầNjạ (ṵAE)* (Figs. 2, 3, 6G) Ampithoe waialua J.L. Barnard, 1970: 53, Figs. 20, 21; Peart & Lörz, 2018: 27. Material examined. 2 inds., Jikgudo Island, 29 August 2021. Description. Male (MABIK CR00252863): Body (Fig. 2A) 11.6 mm long; Head subquadrate, about 1.3 times as long as wide. Rostrum absent; cephalic lobe truncate. Eye subcircular and medium, located close to cephalic lobe; Pereonites and pleonites smooth. Pleonites 1 - 3 (Fig. 2B) without ventral seta, epimeral plates 2, 3 rounded-quadrate posteroventrally, somewhat concave midposteriorly. Antenna 1 (Fig. 2C) slender, about 0.5 times of the body length; peduncular article 1 setose posteriorly; length ratio of peduncular articles 1 - 3 = 1.00: 0.85: 0.28; accessory flagellum absent; flagellum 32-articulate, about 1.75 times as long as peduncle. Antenna 2 (Fig. 2D) setose, about 0.8 times as antenna 1, peduncular article 2 broader than others, with 4 robust setae ventrally; length ratio of peduncular articles 3 - 5 = 1.00: 0.90: 0.15; flagellum 27-articulates, about 0.9 times as long as peduncle. Gnathopod 1 (Fig. 2E) coxa subtrapezoidal, produced anterodistally, with several setules ventrally; basis moderate, with rounded anterodistal lobe; merus produced into triangular expansion posterodistally; carpus about 0.7 times length to propodus, with 4 robust setae on proximal half of anterior margin; propodus subrectangular, palm short, concave; dactylus falcate, overreaching palm; length ratio of articles 2 - 7 = 1.00: 0.34: 0.60: 0.63: 0.85: 0.53. Gnathopod 2 (Fig. 2F) similar to gnathopod 1; coxa rounded quadrate, with setules ventrally; basis subrectangular with large rounded anterodistal lobe; carpus subtriangular, with 6 robust setae on proximal half of anterior margin, rounded posterior lobe setaceous; propodus large, about 1.4 times as long as carpus; palm strongly excavate, curved concavely, palmar corner delimited by subacute process; dactylus falcate, inner margin serrulate, 0.5 times as long as propodus. Pereopod 3 (Fig. 2G) coxa subquadrate, ventral margin with setules ventrally; basis moderate, subrectangular, with simple setae posteriorly; length ratio of articles 2 - 7 = 1.00: 0.27: 0.36: 0.32: 0.34: 0.22. Pereopod 4 (Fig. 2H) similar to pereopod 3, but basis more setose. Pereopod 5 (Fig. 3A) coxa bilobate, dorsodistal protruding lobe roundly backward; basis expanded, about 1.2 times wider than deep; merus and carpus moderate, subrectangular; propodus comparatively slender than carpus; length ratio of articles 2 - 7 = 1.00: 0.30: 0.62: 0.55: 0.85: 0.32. Pereopod 6 (Fig. 3B) basis subovate, 1.69 times as long as wide; merus slightly longer than carpus; propodus narrow, subrectangular, posterior margin with 3 robust setae; length ratio of articles 2 - 7 = 1.00: 0.21: 0.61: 0.55: 0.64: 0.25. Pereopod 7 (Fig. 3C) similar with pereopod 6, except basis slightly wider than that of pereopod 6, posterior margin serrulate; length ratio of articles 2 - 7 = 1.00: 0.28: 0.63: 0.61: 0.80: 0.21. Uropod 1 (Fig. 3D) peduncle rectangular, 1.34 times as long as inner ramus, with 6 dorsolateral, 8 dorsomedial, 3 ventrolateral robust setae; outer ramus shorter than inner one. Uropod 2 (Fig. 3E) subsimilar in structure but about 0.7 times shorter than uropod 1; peduncle armed with 1 dorsolateral and 2 dorsomedial robust setae; outer ramus subequal to peduncle and slightly shorter than inner ramus. Uropod 3 (Fig. 3F) short, peduncle cylindrical, 2.6 times as long as outer ramus, outer ramus bearing 2 hooked terminal spines, inner ramus with group of setae apically. Telson (Fig. 3G) entire, subtriangular, 1.3 times as wide as long, with lateral and subapical setae. Female (DKUAMP202205), Body length 7.8 mm. similar to male in shape, but gnathopods 1, 2 sexually dimorphic. Gnathopod 1 (Fig. 3H) similar to that of male, but propodus palm rounded, not concave, defined by 1 small robust seta; length ratio of articles 2 - 7 = 1.00: 0.31: 0.38: 0.57: 0.61: 0.35. Gnathopod 2 (Fig. 3I) similar to that of male, but propodus palm much less-excavate, defined by 2 stout robust setae; length ratio of articles 2 - 7 = 1.00: 0.32: 0.40: 0.51: 0.65: 0.38. Remarks. Ampithoe waialua is similar to A. dalli Shoemaker, 1938 in possessing similar shaped antennae and gnathopods. However, A. waialua is morphologically distinguished from A. dalli as follows: (1) gnathopod 1 with excavated palm; (2) pereopod 5, anterior notch of basis with strong robust seta; and (3) epimeral plate 3 rounded-quadrate posteroventrally. Ampithoe waialua also similar to A. platycera Sivaprakasam, 1970. However, A. waialua can be distinguished from A. platycera as follows: (1) antenna 2, peduncular article 4 is not flat; (2) gnathopods 1 and 2, propodi elongate; and (3) gnathopod 2, palmar corner without robust seta. The newly recorded species in Chujado Island, A. waialua is well in accord with the original description given by J.L. Barnard (1970). Distribution. Korea (Chujado Island), Hawaiian Islands., Published as part of Kim, Kyung-Won, Zhang, Xin, Choi, Jae-Hong, Kim, Jun & Kim, So-Yeon Shin and Young-Hyo, 2023, Amphipods (Crustacea: Malacostraca) fauna from Chujado Island in Korea, pp. 1-26 in Journal of Species Research 12 (1) on pages 2-4, DOI: 10.12651/JSR.2023.12.1.001, http://zenodo.org/record/8120103, {"references":["Barnard, J. L. 1970. Sublittoral Gammaridea (Amphipoda) of the Hawaiian Islands. Smithsonian Contributions to Zoology 34: 1 - 286.","Peart, R. A. and A. N. Lorz. 2018. Ampithoidae (Crustacea, Amphipoda) from New Zealand. ZooKeys 733: 25 - 48.","Shoemaker, C. R. 1938. Three new species of the amphipod genus Ampithoe from the west coast of America. Journal of the Washington Academy of Sciences 28 (1): 15 - 25.","Sivaprakasam, T. E. 1970. Amphipods of the family Ampithoidae from the Madras Coast. Journal of the Marine Biological Association of India 12 (1 - 2): 64 - 80."]}

38. Guernea namhaensis Kim, Hendrycks and Lee, 2011 ảĝäê꼬NầNjạ (Fig. 10F) Material examined. 1 ind., Mukri Port, 28 August 2021. Distribution. Korea (Jejudo Island and south coast)., Published as part of Kim, Kyung-Won, Zhang, Xin, Choi, Jae-Hong, Kim, Jun & Kim, So-Yeon Shin and Young-Hyo, 2023, Amphipods (Crustacea: Malacostraca) fauna from Chujado Island in Korea, pp. 1-26 in Journal of Species Research 12 (1) on page 9, DOI: 10.12651/JSR.2023.12.1.001, http://zenodo.org/record/8120103

4. Ampithoe changbaensis Shin and Coleman, 2021 (Fig. 6D) Material examined. 25 inds., Yecho-ri Port, 28 August 2021. Distribution. Korea (Jejudo Island, south and east coasts)., Published as part of Kim, Kyung-Won, Zhang, Xin, Choi, Jae-Hong, Kim, Jun & Kim, So-Yeon Shin and Young-Hyo, 2023, Amphipods (Crustacea: Malacostraca) fauna from Chujado Island in Korea, pp. 1-26 in Journal of Species Research 12 (1) on page 2, DOI: 10.12651/JSR.2023.12.1.001, http://zenodo.org/record/8120103

Family Hyalidae Bulyčeva, 1957 ĝŀṘÑầNjạǔ, Published as part of Kim, Kyung-Won, Zhang, Xin, Choi, Jae-Hong, Kim, Jun & Kim, So-Yeon Shin and Young-Hyo, 2023, Amphipods (Crustacea: Malacostraca) fauna from Chujado Island in Korea, pp. 1-26 in Journal of Species Research 12 (1) on page 10, DOI: 10.12651/JSR.2023.12.1.001, http://zenodo.org/record/8120103

Family Leucothoidae Dana, 1852 ŝḙầNjạǔ, Published as part of Kim, Kyung-Won, Zhang, Xin, Choi, Jae-Hong, Kim, Jun & Kim, So-Yeon Shin and Young-Hyo, 2023, Amphipods (Crustacea: Malacostraca) fauna from Chujado Island in Korea, pp. 1-26 in Journal of Species Research 12 (1) on page 10, DOI: 10.12651/JSR.2023.12.1.001, http://zenodo.org/record/8120103

19. Caprella kroyeri De Haan, 1849 OiNŭľNص1ḇNj (Fig. 8C) Material examined. 3 inds., Sinyang Port, Chujado Island, 26 August 2021. Distribution. Korea (west and south coasts), Japan, U.S.A., Published as part of Kim, Kyung-Won, Zhang, Xin, Choi, Jae-Hong, Kim, Jun & Kim, So-Yeon Shin and Young-Hyo, 2023, Amphipods (Crustacea: Malacostraca) fauna from Chujado Island in Korea, pp. 1-26 in Journal of Species Research 12 (1) on page 7, DOI: 10.12651/JSR.2023.12.1.001, http://zenodo.org/record/8120103

54. Elasmopus koreanus Kim and Kim, 1991 DĘḁNƞầNjạ (Fig. 12F) Material examined. 2 inds., Southern end of Hachujado, 26 August 2021; 2 inds., Chuja Bridge, 27 August 2021; 1 ind., Yeongheung Shelter, 27 August 2021; 12 inds., Jikgudo Island, 29 August 2021; 1 ind., Nabalon Cliff, 29 August 2021. Distribution. Korea (south and east coasts)., Published as part of Kim, Kyung-Won, Zhang, Xin, Choi, Jae-Hong, Kim, Jun & Kim, So-Yeon Shin and Young-Hyo, 2023, Amphipods (Crustacea: Malacostraca) fauna from Chujado Island in Korea, pp. 1-26 in Journal of Species Research 12 (1) on page 11, DOI: 10.12651/JSR.2023.12.1.001, http://zenodo.org/record/8120103, {"references":["Kim, W. and C. B. Kim. 1991. The marine amphipod crustaceans of Ulreung Island, Korea: part I. The Korean Journal of Zoology 34 (2): 232 - 252."]}

49. Jassa slatteryi Conlan, 1990 flẽâũ꼬NầNjạäÑ (Fig. 12A) Material examined. 3 inds., Chuja Port, 27 August 2021; 36 inds., Sinyang Port, 28 August 2021; 13 inds., Yecho-ri Port, 28 August 2021. Distribution. Korea (Jejudo Island, west, south, and east coasts), worldwide., Published as part of Kim, Kyung-Won, Zhang, Xin, Choi, Jae-Hong, Kim, Jun & Kim, So-Yeon Shin and Young-Hyo, 2023, Amphipods (Crustacea: Malacostraca) fauna from Chujado Island in Korea, pp. 1-26 in Journal of Species Research 12 (1) on page 10, DOI: 10.12651/JSR.2023.12.1.001, http://zenodo.org/record/8120103

60. Synchelidium trioostegitum Jo, 1990 ljēHṷäêḵầNjạ (Fig. 13D) Material examined. 4 inds., Chuja Port, 27 August 2021; 3 inds., Mukri Port, 28 August 2021. Distribution. Korea (Jejudo Island and west coast)., Published as part of Kim, Kyung-Won, Zhang, Xin, Choi, Jae-Hong, Kim, Jun & Kim, So-Yeon Shin and Young-Hyo, 2023, Amphipods (Crustacea: Malacostraca) fauna from Chujado Island in Korea, pp. 1-26 in Journal of Species Research 12 (1) on page 14, DOI: 10.12651/JSR.2023.12.1.001, http://zenodo.org/record/8120103

13. Caprella arimotoi Takeuchi, 1993 나PẠāص1ḇNj (Fig. 7E) Material examined. 2 inds., Yeongheung Shelter, 27 August 2021; 52 inds., Damuraemi Island, 27 August 2021; 42 inds., Chuja Port, 27 August 2021; 1 ind., Sinyang 2-ri, Chujado Island, 28 August 2021; 6 inds., Mukri Port, 28 August 2021; 16 inds., Jikgudo Island, 29 August 2021; 8 inds., Nabalon Cliff, 29 August 2021. Distribution. Korea (south coast), Japan., Published as part of Kim, Kyung-Won, Zhang, Xin, Choi, Jae-Hong, Kim, Jun & Kim, So-Yeon Shin and Young-Hyo, 2023, Amphipods (Crustacea: Malacostraca) fauna from Chujado Island in Korea, pp. 1-26 in Journal of Species Research 12 (1) on page 7, DOI: 10.12651/JSR.2023.12.1.001, http://zenodo.org/record/8120103

31. Pseudoproto fallax Mayer, 1903 ljďḣḑ의ñṄص1ḇNj (Fig. 9G) Material examined. 1 ind., Sinyang Port, 26 August 2021; 1 ind., Chuja Port, 27 August 2021; 4 inds., Mukri Port, 28 August 2021. Distribution. Korea (Jejudo Island and south coast), Australia, China, Japan. Family Corophiidae Leach, 1814 âũ꼬NầNjạǔ Genus Monocorophium Bousfield and Hoover, 1997 ËẹầNjạṩ, Published as part of Kim, Kyung-Won, Zhang, Xin, Choi, Jae-Hong, Kim, Jun & Kim, So-Yeon Shin and Young-Hyo, 2023, Amphipods (Crustacea: Malacostraca) fauna from Chujado Island in Korea, pp. 1-26 in Journal of Species Research 12 (1) on pages 8-9, DOI: 10.12651/JSR.2023.12.1.001, http://zenodo.org/record/8120103

8. Pleonexes koreana (Kim and Kim, 1988) ǖėùầNjạ (Fig. 6H) Material examined. 9 inds., Southern end of Hachujado, 26 August 2021; 3 inds., Chuja Bridge, 27 August 2021; 13 inds., Sinyang 2-ri, 28 August 2021; 14 inds., Yecho-ri Port, 28 August 2021; 1 ind., Jikgudo Island, 29 August 2021; 1 ind., Chuja Port, 29 August 2021. Distribution. Korea (Jejudo Island, west, south, and east coasts), Japan. Genus Sunamphitoe Spence Bate, 1857 Ü÷åùầNjạṩ, Published as part of Kim, Kyung-Won, Zhang, Xin, Choi, Jae-Hong, Kim, Jun & Kim, So-Yeon Shin and Young-Hyo, 2023, Amphipods (Crustacea: Malacostraca) fauna from Chujado Island in Korea, pp. 1-26 in Journal of Species Research 12 (1) on page 4, DOI: 10.12651/JSR.2023.12.1.001, http://zenodo.org/record/8120103, {"references":["Kim, H. S. and C. B. Kim. 1988. Marine gammaridean Amphipoda (Crustacea) of the family Ampithoidae from Ko- rea. The Korean Journal of Systematic Zoology Special Issue, 2: 107 - 134."]}

Family Podoceridae Leach, 1814 ű배ầNjạǔ, Published as part of Kim, Kyung-Won, Zhang, Xin, Choi, Jae-Hong, Kim, Jun & Kim, So-Yeon Shin and Young-Hyo, 2023, Amphipods (Crustacea: Malacostraca) fauna from Chujado Island in Korea, pp. 1-26 in Journal of Species Research 12 (1) on page 14, DOI: 10.12651/JSR.2023.12.1.001, http://zenodo.org/record/8120103

1. Byblis japonicus Dahl, 1944 ëȅffiãNċú경ầNjạ (Fig. 6A) Material examined. 1 ind., Sinyang Port, 26 August 2021; 2 inds., Chuja Port, 27 August 2021; 1 indv., Yecho-ri Port, 28 August 2021; 8 inds., Mukri Port, 28 August 2021. Distribution. Korea (Jejudo Island, west and south coasts), China, Japan. Family Amphilochidae Boeck, 1871 ǎê꼬NầNjạǔ Genus Hourstonius Hoover and Bousfield, 2001 Oiċff ṷqċṩ, Published as part of Kim, Kyung-Won, Zhang, Xin, Choi, Jae-Hong, Kim, Jun & Kim, So-Yeon Shin and Young-Hyo, 2023, Amphipods (Crustacea: Malacostraca) fauna from Chujado Island in Korea, pp. 1-26 in Journal of Species Research 12 (1) on page 2, DOI: 10.12651/JSR.2023.12.1.001, http://zenodo.org/record/8120103

30. Protogeton incertus Mayer, 1903 ṣŔŋñṄص1ḇNj (Fig. 9F) Material examined. 2 inds., Chuja Port, 27 August 2021. Distribution. Korea (south coast), China., Published as part of Kim, Kyung-Won, Zhang, Xin, Choi, Jae-Hong, Kim, Jun & Kim, So-Yeon Shin and Young-Hyo, 2023, Amphipods (Crustacea: Malacostraca) fauna from Chujado Island in Korea, pp. 1-26 in Journal of Species Research 12 (1) on page 8, DOI: 10.12651/JSR.2023.12.1.001, http://zenodo.org/record/8120103

29. Perotripus koreanus Lee and Hong, 2010 ūήHNljďḣḑḎŦµNñṄص1ḇNj (Fig. 9E) Material examined. 9 inds., Damuraemi Island, 27 August 2021; 1 ind., Jikgudo Island, 29 August 2021. Distribution. Korea (Jejudo Island and south coast)., Published as part of Kim, Kyung-Won, Zhang, Xin, Choi, Jae-Hong, Kim, Jun & Kim, So-Yeon Shin and Young-Hyo, 2023, Amphipods (Crustacea: Malacostraca) fauna from Chujado Island in Korea, pp. 1-26 in Journal of Species Research 12 (1) on page 8, DOI: 10.12651/JSR.2023.12.1.001, http://zenodo.org/record/8120103, {"references":["Lee, K. S. and S. S. Hong. 2010. A new species of the genus Perotripus (Crustacea: Amphipoda: Caprellidae) from Korea. Animal Cells and Systems 14 (1): 53 - 58."]}

16. Caprella danilevskii Czerniavski, 1868 DZǙÑص1ḇNj (Fig. 7H) Material examined. 8 inds., Yeongheung Shelter, 27 August 2021; 3 inds., Yecho-ri, 28 August 2021; 5 inds., Chuja Port, 27 August 2021; 10 inds., Nabalon Cliff, 29 August 2021. Distribution. Korea (west, south, and east coasts), Brazil, Italy, Japan, North Africa, the Black Sea, U.S.A., Published as part of Kim, Kyung-Won, Zhang, Xin, Choi, Jae-Hong, Kim, Jun & Kim, So-Yeon Shin and Young-Hyo, 2023, Amphipods (Crustacea: Malacostraca) fauna from Chujado Island in Korea, pp. 1-26 in Journal of Species Research 12 (1) on page 7, DOI: 10.12651/JSR.2023.12.1.001, http://zenodo.org/record/8120103

37. Guernea ezoensis Ishimaru, 1987 ḀṺÑPäê꼬NầNjạ (Fig. 10E) Material examined. 1 ind., Chuja Port, 27 August 2021; 2 inds., Yecho-ri Port, 28 August 2021; 18 inds., Mukri Port, 28 August 2021. Distribution. Korea (Jejudo Island, west, south, and east coasts), Japan., Published as part of Kim, Kyung-Won, Zhang, Xin, Choi, Jae-Hong, Kim, Jun & Kim, So-Yeon Shin and Young-Hyo, 2023, Amphipods (Crustacea: Malacostraca) fauna from Chujado Island in Korea, pp. 1-26 in Journal of Species Research 12 (1) on page 9, DOI: 10.12651/JSR.2023.12.1.001, http://zenodo.org/record/8120103