Introduction

In making Inachus bifidus Marion de Procé, 1822 a junior synonym of Mithrax asper, Ng et al. (2008) had invoked Article 23.9.1.1 of the Code to reverse priority for Portunus tropicalis Marion de Procé, 1822, and, by extension, Inachus bifidus Marion de Procé, 1822. Their action, however, is invalid because they did not provide the requisite list of works using the junior name (Lee et al. (2018). However, to avoid nomenclatorial instability Lee et al. (2018) invoke Article 23.9.1 to reverse the precedence of a junior synonym when the senior synonym has not been used as a valid name after 1899 and the junior synonym “has been used for a particular taxon, as its presumed valid name, in at least 25 works, published by at least 10 authors in the immediately preceding 50 years and encompassing a span of not less than 10 years”.

 

Distribution

States

New South Wales, Queensland, South Australia, Western Australia

Extra Distribution Information

Indo-west central Pacific Oceans (South Africa to Japan and Hawai'i).

IBRA and IMCRA regions

IMCRA

Southeast Transition (11), Central Eastern Province (12), Tasman Basin Province (13), Christmas Island Province (23), Central Western Shelf Transition (28), Central Western Shelf Province (29), Spencer Gulf Shelf Province (33), Central Eastern Shelf Transition (39), Northeast Shelf Province (40), Northeast Shelf Transition (41)

Ecological Descriptors

Coral reef, shallow subtidal.

Extra Ecological Information

In branches of living and dead coral, under rocks and coral rubble.

 

General References

Lee, B.Y., Low, M.E.Y. & Ng, P.K.L. 2018. A nomenclatural review of the genus Schizophrys,/em> White, 1848 (Decapoda: Brachyura: Majoidea: Majidae). Raffles Bulletin of Zoology 66: 12–22 [14]

Ng, P.K.L, Guinot, D. & Davie, P.J.F. 2008. Systema Brachyurorum: Part I. An annotated checklist of extant brachyuran crabs of the world. The Raffles Bulletin of Zoology 17: 1-286 [Date published 31 January 2008] [118, 123, 157]