Decapoda - Brachyura - Xanthidae - Etisus
| Etisus demani Odhner, 1925 |
World Distribution
(Davie, 2002: 530) - IWP, Madagascar and Red Sea to Japan and east to Samoa. Plus Wallis & Futuna and French Polynesia.
Serène (1984 : 227) - Indo-ouest Pacifique. Mer Rouge, Madagascar, Mayotte, Seychelles, Ile Christmas, Samoa, Japon, Hawaii, Polynésie française. Comprend, Réunion, Wallis & Futuna, Mayotte, Juan de Nova.
Castro (2011) - Intertidal to 120 m.
Environnement : Marine - Substrat/Association : Hard bottom (rock and rubbles)
Vertical range : Shallow-waters (0-100 m) - Min-Max observed: 0-120 m
Mayotte data
Etisus demani Odhner, 1925
Material examined — Mayotte KUW 2009, st. 8, lagoon near Great Northeastern Reef, 6-8 m, 1 M 6.6 x 9.7 mm (with hesitation, male pleopod not checked, E. odhneri Takeda, 1971 possible), MNHN-B32381, MNHN-IU-2009-1154; st. 28, east islet Mbouini, 3-20 m, 1 M 11.4 x 16.8 mm, MNHN B32348, MNHN-IU-2009-1123.
Other records — Etisus demani - Serène, 1984: 227, fig. 140, 143 a; pl. XXXI F, Mayotte, intertidal, colle. A. Crosnier September 1959, 2 MM largest 14.1 x 21.0 mm, 1 F 8.5 x 12.4 mm, MNHN B6741. - Poupin, 2016: Expedition Juan de Nova December 2013, reef-block,1 F ov. 14.8x21.4 mm, st. 17 (MNHN) (photo) (nr).
Remarks — The characters of E. demani (in Serène, 1984) are verified on the largest specimen at st. 28 (MNHN-IU-2009-1123): aspect front, anterolateral teeth of carapace with intercalated smaller teeth, dactyls of cheliped strongly recurved distally, dorsal/upper edge of ambulatory legs spinous, and aspect of male pleopod with long sub-distal setae. However on the smaller specimens examined these characters are less obvious and differences with related Etisus odhneri Takeda, 1971 are more difficult to appreciate. The few differences between these two species are in need of revision as they can be size related differences (see Serène, 1984: 227).
Geographic and depth ranges — IWP, Red Sea, Mayotte, Madagascar to Hawaii, French Polynesia; intertidal, subtidal to 120 m.
Réunion data
Etisus demani - Mission Poupin, avril 2008 (MNHN, St. 8, Etang Salé, photographie J. Poupin). Photo P. Frouin, reçue Juin 2009 (suite mission Poupin, avril 2008). - Réunion, photo in situ P. Bourjon, May 2015, det. J. Poupin from photo.
Central Pacific data (Wallis & Futuna, Polynesia, Clipperton, Easter Island)
WALLIS & FUTUNA - Etisus demani - Poupin & Juncker, in preparation (Futuna, Wallis). - FRENCH POLYNESIA - Etisus demani - Monteforte, 1984: 170, annex 1, tab. a (Tahiti). - Serène, 1984: 227, fig. 140, 143a, pl. 31f (Hikueru?; cf. Remark). - Guinot, 1985: 450 (List). - Poupin, 1996a: 52 (Checklist). - Remark: The location "Hikueru" in Serène (1984: 227) is only mentioned in the observations. It is not indicated under the material examined, and was not retrieved in the references cited by Serène. It could be an erroneous reading in Guinot (1964: 59), where "Hikueru" is cited under Etisus frontalis Dana, just beneath E. demani Odhner. - Unpublished sp. coll. & det. G. Paulay, October 13, 2001, Rangiroa, ca. 1 km S. of NW point of atoll, off Motu Maeherehonae (FLMNH-UF 1611), Tikehau (FLMNH-UF 1612). - Moorea Biocode project. - Salvat & Bacchet, 2011: 251, photo, field guide 'Au Vent des Iles Ed. Tahiti - French Polynesia, most often Society (Moorea, Tahiti). - Mission CRIOBE 2014 (collection, Tahiti, 1982, coll. Monteforte, det. Forest, sp. in very bad condition)
References : PDF list, 214 pp (1.4 Mo)This species in Worms Database