Ostracotheres, H. Milne Edwards, 1853

Ahyong, Shane T., 2018, Revision of Ostracotheres H. Milne Edwards, 1853 (Crustacea: Brachyura: Pinnotheridae), Raffles Bulletin of Zoology 66, pp. 538-571 : 540

publication ID

https://doi.org/ 10.5281/zenodo.5359739

publication LSID

lsid:zoobank.org:pub:8F3A63EE-E132-4E18-8C58-C7034BFDA4A0

DOI

https://doi.org/10.5281/zenodo.5454922

persistent identifier

https://treatment.plazi.org/id/D33B87B4-FF82-FFA4-54DC-3E0B868673C2

treatment provided by

Valdenar

scientific name

Ostracotheres
status

 

Key to male and female Ostracotheres View in CoL

1. Pereopod 2–5 dactyli stout, falcate, apices distinctly curved, some turning almost perpendicular to main axis; flexor margins evenly convex, with 1 or 2 rows of minute, stiff setae. Maxilliped 3 exopod flagellum 2-segmented. In tridacnine clams ............ .............................................................................. O. tridacnae View in CoL

– Pereopod 2–4 dactyli slender, gently curved, apices weakly curved, to less the 45° to main axis. Pereopod 5 dactylus relatively straight; flexor margin sinuous. Pereopod 2–5 flexor margins with row of stiff, elongated setae. Maxilliped 3 exopod flagellum 1-segmented. In ascidians...................... O. cynthiae View in CoL

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