Parapenaeon sicyoniae An & Markham & Li 2015, sp. nov

Parapenaeon sicyoniae sp. nov. (Figures 9, 10) Material examined Infesting Sicyonia lancifer (Olivier, 1811) [= Sicyonia cristata de Haan, 1844]. Holotype: CIEPE560309, ♀, allotype: CIEPE560310, ♂, Haimen, Guangdong Province, 23°15 ′ N, 116°40 ′ E, 14 March 1956, coll. Ruiyu Liu. Paratypes: CIEPE560307, 2♀♀, 2♂♂, Haimen, Guangdong Province, 23°15 ′ N, 116°40 ′ E, 14 March 1956, coll. Ruiyu Liu. Description of holotype female (CIEPE560309) (Figure 9A, O) Length 5.79 mm, maximal width 4.23 mm, head length 0.96 mm, head width 1.37 mm. Head oval, with well-developed frontal lamina. Small black eyes on boundary between frontal lamina and head (Figure 9A). First antenna of three articles without evident setae, basal two articles stout, terminal article very narrow; second antenna of four articles, each much narrower than that proximal to it, terminal article with sparse setae (Figure 9C). Palp of maxilliped broadly triangular, offset slightly from medial margin, non-setose, not articulating with maxilliped (Figure 9D). Barbula with two pairs of digitate lateral projections on each side, more branches on outer projections than inner ones. Small tubercule medial to each inner projection (Figure 9E). Pereon broadest across third pereomere (Figure 9A). Coxal plates well-developed on long side of all pereomeres. Coxal plates on short side of first two pereomeres also well-developed, but those on third and fourth pereomeres rudimentary, absent from other pereomeres. Round dorsolateral bosses on first four pereomeres. Brood pouch almost closed (Figure 9B). First oostegite (Figure 9F, G) with slightly sinuate internal ridge. Roundly triangular posterolateral point extending posterolaterally. Pereopods larger posteriorly (Figure 9H, I), all bases produced into lobes. Pleon of six pleomeres, first five bearing smooth lateral plates (Figure 9J) and biramous digitate pleopods (Figure 9K–O). Sixth pleomeres visible in dorsal view, with digitate biramous uropods (Figure 9J). Exopodites of uropods round, endopodites as slender triangles.
Published as part of An, Jianmei, Markham, John C. & Li, Xinzheng, 2015, A review of the genus Parapenaeon Richardson, 1904 (Crustacea: Isopoda: Bopyridae: Orbioninae), with description of three new species from China, pp. 2527-2557 in Journal of Natural History 49 (41) on pages 2548-2550, DOI: 10.1080/00222933.2015.1023227, http://zenodo.org/record/4000793
{"references":["Olivier AG. 1811. Suite de l' Introduction a l' Histoire Naturelle des Insectes. Palemon. In Olivier AG, editor. Encyclopedie Methodique. Histoire Naturelle Insectes. Paris: H. Agasse, Imprimeur-Libraire; vol. 8, 656 - 670."]}