Decapoda - Brachyura - Aethridae - Aethra

Aethra scruposa (Linnaeus, 1764)

World Distribution
Ng (1999 : 114) - Indo-Pacifique. Afrique orientale, Réunion, Maurice, Inde, Sri Lanka, Asie méridionale, Japon, Chine, Nouvelle-Calédonie, Fidji, Guam, Cook. Comprend Mayotte, premier signalement. 1.5 m (in Ng, 1999) to 200 m (in Sakai, 1976).

Environnement : Marine - Substrat/Association : Hard bottom (rock and rubbles)

Vertical range : Shallow to deep-waters (e.g. 10-190 m) - Min-Max observed: 1-200 m

Mayotte data
Aethra scruposa (Linnaeus, 1764)
Material examined — Mayotte KUW 2009, st. 17, northern reef, 22 m, 1 M 55.5 x 79.8 mm, MNHN B32401, MNHN-IU-2009-1163.
REMARKS — Aethra seychellensis Takeda, 1975 from nearby Seychelles is affiliated to A. scruposa. However, it cannot be confused with A. scruposa because of its high, sublamelliform, posteriorly directed gastric projection and by strongly upturned posterolateral carapace margins of the carapace.
DISTRIBUTION — IWP, Mayotte (this work), Réunion, Mauritius to Japan, Cook Islands; 1-200 m. Traditionally this species is reported from Eastern Africa, probably from the list by Guinot (1967b: 299). However we failed to retrieve any formal records of this species from the African coast in any of the contributions for this species presented in Ng (1999), including previous contributions by Guinot (1966, 1967a). The report from Mayotte in present work seems therefore to be the IWP westernmost limit for this crab.

Réunion data
Oethra scruposa - A. Milne-Edwards, 1862 (Réunion, coll. Maillard). - Aethra scruposa - Ribes-Beaudemoulin et al. 2002 : 70 (Réunion ; au delà de 30 m). - Photographie A. Diringer, 18 m, sous une pierre, det. Poupin/Ng d'après la photographie (suite Mission Poupin, avril 2008).- Réunion - Program BIOLAVE, ARVAM, J.-P. Quod, photo, plate A. Barrère (pl. Q5).

New Caledonia data
Nouvelle Caledonie, STATION — Ng P.K.L & Richer de Forges B., Compendium of marine species from New Caledonia, Vol II7: 315-332

Central Pacific data (Wallis & Futuna, Polynesia, Clipperton, Easter Island)
Aethra scruposa - Guinot, 1985: 453, with a ? (Society; listed only according to the large distribution of the species, without material from French Polynesia). - Poupin, 1996a: 28, 77 (Checklist). - Ng, 1999: 111 (not French Polynesia but several places in the Cook Islands, west of French Polynesia).

References : PDF list, 214 pp (1.4 Mo)

This species in Worms Database