Raphidopus Stimpson, 1858

Osawa, Masayuki & Ng, Peter K. L., 2018, A new species of the genus Raphidopus Stimpson, 1858 (Crustacea: Decapoda: Anomura: Porcellanidae) from Peninsular Malaysia, with additional records of R. johnsoni Ng & Nakasone, 1994 from Sou, Zootaxa 4433 (1), pp. 111-126: 125

publication ID

https://doi.org/10.11646/zootaxa.4433.1.6

publication LSID

lsid:zoobank.org:pub:4D532EFF-7063-4772-AF77-58F5A8213B44

persistent identifier

http://treatment.plazi.org/id/03B787EB-FFD1-0517-D4F8-0ACEFA76FDE9

treatment provided by

Plazi

scientific name

Raphidopus Stimpson, 1858
status

 

Key to species of the genus Raphidopus Stimpson, 1858 

1. Branchial margins of carapace each with 1–3 distinct spines on median part.................. R. ciliatus Stimpson, 1858 

- Branchial margins of carapace without spines................................................................ 2

2. Carpi of chelipeds each with 3 or 4 sharp spines on distal third of posterior margin.... R. persicus Ng, Safaie & Naser, 2012 

- Carpi of chelipeds unarmed on posterior margins............................................................. 3

3. Carpus of each cheliped usually with blunt longitudinal ridge on midline of dorsal surface. Dactylus of larger cheliped with 2 distinct proximal teeth on cutting edge. Ambulatory legs comparatively stout (in fourth pereopod, 2.4–2.6 and 2.2–2.4 times longer than high on merus and propodus, respectively).......................................... R. brevipes  n. sp.

- Carpus of each cheliped without blunt longitudinal ridges on midline of dorsal surface. Dactylus of larger cheliped with 1 distinct proximal tooth on cutting edge. Ambulatory legs slender (in fourth pereopod, 2.8–3.1 and 2.7–3.0 times longer than high on merus and propodus, respectively)...................................................................... 4

4. Eyes comparatively large, reaching lateral limits of orbits. Dactylus of larger cheliped with distinct, blunt tooth on median part of cutting edge, in addition to 1 proximal tooth................................... R. johnsoni Ng & Nakasone, 1994 

- Eyes small, not reaching lateral limits of orbits. Dactylus of larger cheliped without prominent tooth on median part of cutting edge........................................................................... R. indicus Henderson, 1893