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2. A Red Sea Depth Record of the Coral-Dwelling Crab Opecarcinus (Decapoda: Cryptochiridae) in the Mesophotic Zone

Author

Vimercati, Silvia, van der Meij, Sancia E.T., Terraneo, Tullia I., Chimienti, Giovanni, Marchese, Fabio, Eweida, Ameer A., Purkis, Sam J., Rodrigue, Mattie, Benzoni, Francesca, and Van der Meij lab

Abstract

Coral-dwelling gall crabs (Cryptochiridae) are obligate symbionts of stony corals and occur on shallow and deep reefs across the tropical belt. The circumtropical genus Opecarcinus associates with Agariciidae corals, a dominant component of Mesophotic Coral Ecosystems (MCEs). Here, we report the first Red Sea mesophotic record, with 89 m as the deepest record to date, for Opecarcinus—collected from Leptoseris cf mycetoseroides—from the NEOM marine area in Saudi Arabia. This observation reconfirms the depth range flexibility of Opecarcinus species and highlights the need for further mesophotic explorations of reef-associated fauna.

Published
2023

9. The phylogenetic position of a new species of Plakobranchus from West Papua, Indonesia (Mollusca, Opisthobranchia, Sacoglossa).

Author

Meyers-Muñoz, María Angélica, van der Velde, Gerard, van der Meij, Sancia E.T., Stoffels, Bart E.M.W., van Alen, Theo, Tuti, Yosephine, and Hoeksema, Bert W.

Subjects
SACOGLOSSA, MOLLUSK classification, MOLLUSK phylogeny, ZOOLOGICAL specimens, MOLLUSK morphology
Abstract

Plakobranchus papua Meyers-Muñoz & van der Velde, sp. n. from West Papua (Papua Barat province, Indonesia), is described based on its external morphology, colour pattern, internal anatomy, radula and reproductive system. In a molecular phylogenetic study specimens of this new species were compared with those of ten candidate taxa under the name Plakobranchus ocellatus van Hasselt, 1824. DNA analyses of COI mtDNA showed a clear distinction between P. papua sp. n. and "P. ocellatus". Plakobranchus papua, sp. n. also differed from all taxa that have been synonymised with P. ocellatus. The genus is in dire need of taxonomic revision, preferably based on an integrative analysis involving morphology and DNA of all known Plakobranchus varieties. [ABSTRACT FROM AUTHOR]

Published
2016
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10. THE ACROPORA HUMILIS GROUP (SCLERACTINIA) OF THE SNELLIUS EXPEDITION (1929-30).

Author

van der Meij, Sancia E.T. and Visser, Rémon R.

Subjects
*ACROPORIDAE, *ARCHAEOLOGICAL expeditions, *BIOGEOGRAPHY, *CORALS, *SPECIES diversity, *BIOLOGICAL specimens
Abstract

During the Snellius expedition (1929-30) in eastern Indonesia and the Philippines, a large collection of Acropora corals was made. This collection is comprised of roughly 700 specimens, many of which remain unidentifi ed. In this paper we discuss species of the Acropora humilis group collected during the expedition and compare the records with the known distribution ranges in Indonesia. New records are found, most notably for Acropora multiacuta, A. retusa and A. fastigata. [ABSTRACT FROM AUTHOR]

Published
2011

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