Decapoda - Brachyura - Xanthidae - Atergatopsis

Atergatopsis signata (Adams & White, 1849)

5 Illustration(s)

World Distribution
Sakai (CD - 2004), Poupin (Internet) - Red Sea, Eastern Africa, Zanzibar, Mozambique, South Africa, Madagascar, Comoros (Glorieuses), Mauritius, Coetivy, India, Taiwan, Japan, French Polynesia. Guam from Paulay Ed. Micronesica 2003.

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

Vertical range : Shallow-waters (0-100 m) - Min-Max observed: 1-5 m

Mayotte data
Atergatopsis signata (Adams & White, 1849) — Serène, 1984: 142, fig. 82, pl. XX A, Glorieuses, Island du Lys, intertidal, coll. A. Crosnier 29 January 1971, 1 carapace 69 x 101 mm. - IWP, Red Sea, South Africa to Guam, French Polynesia; intertidal, subtidal.

Europa data
Atergatopsis flavomaculatus - Lenz, 1910 : 546 (Europa; Atergatopsis flavomaculatus A. Milne-Edwards, 1865 est un synonyme de A. signata. - Atergatopsis signata - Fourmanoir, 1952 : 175 (Europa). - Atergatopsis signatus - Guinot, 1967 : 262, liste, avec Europa. - Poupin et al., 2013 : 10, liste, avec Europa.

Central Pacific data (Wallis & Futuna, Polynesia, Clipperton, Easter Island)
Atergatopsis signatus - Holthuis, 1953: 12 (Raroia). - Morrison, 1954: 16 (Raroia). - Forest & Guinot, 1962: 62 (Biogeography "Tahiti-Tuamotu"). - Guinot, 1966a: 48 (Raroia); 1985: 450 (List). - Monteforte, 1984: 170, annex 1, tab. a (Makatea, Mataiva, Takapoto). - Delesalle, 1985: 289 (Mataiva). - Salvat, 1986b: 72 (French Polynesia). - Poupin, 1996a: 45 (Checklist). Unpublished record, coll. & det. G. Paulay with a ? (color of specimens from French Polynesia differs slightly from those on Guam, see photographs), Tahiti, east coast, at Trou de Souffleur, October 19, 2001 (FLMNH-UF001399 recorded under Atergatopsis lucasii, see comments herein).

Comment(s) on data
Atergatopsis signata sometimes confused with A. lucasii in fieldnotes. Based on text and drawings of A. Milne-Edwards (1865, Cancériens Nouvelle Calédonie) it seems that color pattern differs: a) Couleur d'un brun rouge avec des dessins symetriques d'un jaune plus clair, pattes uniformement jaune rouge, doigts des pinces noirs - for A. signata (and for A. favomaculatus, a junior synonym:Couleur rouge avec des taches jaunes.); b) Couleur d'un brun chocolat avec une tache jaune en forme de croix sur le lobe urogastrique - for A. lucasii. The aspect of dorsal margin of the chela seems also to be useful: a) smooth in A. signata; versus b) tuberculated in A. lucasii

References : PDF list, 214 pp (1.4 Mo)

This species in Worms Database