Decapoda - Brachyura - Majidae - Schizophrys

Schizophrys aspera (H. Milne Edwards, 1834)



World Distribution
Sakai (2004 - CD), MASDEA/AfReMas (Internet) - Indo-ouest Pacifique. Mer Rouge, Afrique orientale, Mozambique, Afrique du Sud, Seychelles, Maurice, au Japon, Fidji, Hawaii. Comprend, Réunion, Mayotte, premier signalement, Polynésie française.

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

Vertical range : Shallow-waters (0-100 m) - Min-Max observed: 0-69 m

Mayotte data
Schizophrys aspera (H. Milne Edwards, 1834)
Material examined — Mayotte KUW 2009, st 3a, Trévani fringing reef, 1-8 m, 1 F juv. 10.5 x 6.8 mm, photo, MNHN B32537, MNHN-IU-2009-1297; st. 20b, islet M'tzamboro, western reef, 10-15 m, 1 M 21.5 x 16.0 mm, photo, MNHN B32542, MNHN-IU-2009-1302; st. 21b, Islet Choizil, East, Malandzamiayatsini, 15-20 m, 1 M juv. 12.3 x 8.1 mm, MNHN B32539, MNHN-IU-2009-1299; st. 23, Choizil pass, "Patate à Teddy", 15-30 m, 1 M 18.5 x 12.9 mm, MNHN B32541, MNHN-IU-2009-1301; st. 24, Islet Handrema, North, 6-12 m, 1 F ov. 29 x 24 mm (without horns), MNHN B32416, MNHN-IU-2009-1178; st. 25, Islet M'tzamboro, southern tip, 15-20 m, 2 MM 16.3 x 11.4 mm and 18.8 x 13.4 mm, 1 F ov. 17.8 x 13.8 mm, MNHN B32540, MNHN-IU-2009-1300; st. 26, Mutsumbatsou reef flat, intertidal, 2 F juv. 9,5 (rostral horns included) x 6.5 mm and 13.4 x 9.2 mm, MNHN B32536, MNHN-IU-2009-1296; st. 28, Islet Mbouini, East, 3-20 m, 1 M 17.2 x 12.9 mm, MNHN B32543, MNHN-IU-2009-1303; st. 30, Rani reef, double barrier, 3-15 m, 1 M juv. 8.8 x 5.5 mm, 1 F juv. 10.7 x 6.9 mm, MNHN B32538, MNHN-IU-2009-1298; st. 35, Surprise reef, pass Longoni, 4-25 m, carapace only, reported in field notes non collected.
Remarks — The set of specimens collected herein includes several juveniles mixed with much larger specimens which makes it possible to appreciate morphological variations with size. In juveniles the granulation of the carapace is reduced and the distal end of male pleopod is little or not curved. In adults rostral horns can have a small additional basal spine on mesial margin (e.g. 1 ? 18.8 × 13.4 mm, st. 25, MNHN-IU-2009-1300). These size-related morphological variations have been already noticed for S. aspera by A. Milne-Edwards (1872) after examining a lot of specimens from New Caledonia.
Geographic and depth ranges — IWP, Red Sea, Mayotte (this work), South Africa, Hawaii, French Polynesia; intertidal to 69 m

Europa data
Schizophrys aspera - Europa, BIOTAS collections, specimen MEPA-00267, st EURO-16, dét. J. Poupin d'après photo. Premier signalement.

Réunion data
Schizophrys aspera - Mission Poupin, avril 2008 (MNHN, St. 12, St. Leu, centre Chélonia ; photographies J. Poupin, programme BIOTAS, A. Diringer). - Coll. BIOLAVE, 27/11/2011, shallow-waters, divers 10-30 m, det. J. Poupin 25/01/2013.

New Caledonia data
Nouvelle Caledonie, STATION — Edwards AM, Nouv Arch MNHN 8: 229-267

Central Pacific data (Wallis & Futuna, Polynesia, Clipperton, Easter Island)
Schizophrys aspera - Guinot, 1985: 453, with a ? (List; cited by Guinot, only because of the large distribution of the species). - Poupin, 1996a: 27, 77 (Checklist). - Unpublished sp., BENTHAUS, malacologist team, stn 7, south east of Tauna islet, 18 m, living coral, 27°36.5' S, 144°17.7' W, November 5, 2002 (Rapa), ident. J. Poupin. - Moorea Biocode project. - AAMP, Marquesas, 2012, Leg 2, coll. Evans, sample 0189, St 10, Eiao, 25 m, sample 0223, St 12, Nuku Hiva, 9 m, sample 0334, St 19, Ua Huka, 20 m, det. & photo preserved sp. J. Poupin; Leg 3, St. MQ13-R, Tahuata, 27-35 m, coll. Starmer et al., sample LC65, St. MQ19-R, Hiva Oa, 10-25 m, coll. Starmer et al., sample LC219, LC234. - Schizophrys cf. aspera - Salvat & Bacchet, 2011: 247, photo, field guide 'Au Vent des Iles Ed. Tahiti - French Polynesia, most often Society (Moorea, Tahiti).

Other data
Polynesie, STATION — Poupin J, Zoosystema 25, 4: 643-664

References : PDF list, 214 pp (1.4 Mo)

This species in Worms Database