Raylilia uenoi ( Takeda, 1995 )

Galil, Bella S., 2001, A new genus and species of leucosiid crab (Crustacea, Decapoda, Brachyura) from the Indo-Pacific Ocean, Zoosystema 23 (1), pp. 65-75 : 73-74

Raylilia uenoi ( Takeda, 1995)

( Figs 7 ; 8 )

Arcania uenoi Takeda, 1995: 151 , figs 1; 2.

TYPE MATERIAL. — Ryukyu Island. Ie-Jima Islet, 35 m National Science Museum, Tokyo, 1 9.0 mm (NSMT-Cr 11432).

MATERIAL EXAMINED. — Grand Récif Sud. New Caledonia, stn 572, 22°52’S, 167°00’E, 65 m, 17.VII.1985, 1 10.5 mm ( MNHN).

East Lagoon. Stn 662, 21°44’S, 166°32’E, 50 m, 8.VIII.1986, 1 broken ( MNHN B18384).

Prony Bay. Ouen Island, stn 131, 22°27.9’S, 166°50’E, 38 m, VIII.1984, coll. Richer de Forges, 1 15.9 mm (MNHN B18379).

Chesterfield Island. CORAIL 2, stn DW 119, 19°25.3’S, 158°24.60’E, 56 m, 28.VIII.1988, 1 8.6 mm (MNHN).

Sulu Archipelago. SW Doc Can Island, Philippines, 21.II.1964, coll. B. R. Wilson, 1 12.9 mm (WAM 228-70).

Java. Indonesia, 5°40’S, 106°8’E, 54 m, 28.VII.1922, 1 ovi 10.7 mm (ZMK).

Madagascar. NW coast, near Nosy Be, 30 m, on madreporean, 17.I.1971, coll. P. Laboute, 1 9.3 mm ( MNHN B18780).

DISTRIBUTION. — New Caledonia, Chesterfield Island, Ryukyu Island, Philippines, Indonesia, Madagascar, 30- 65 m.

DESCRIPTION

Dorsal surface of carapace paved with minute, flattopped granules. Frontal lobes tumid, anterior margin shallow arch. Margin of carapace bearing nine minutely granulate denticles: three denticles on posterior margin, two on midlateral margin, single denticle on subhepatic margin. Dorsal surface of carapace bearing 16 conic tubercles. Hepatic tubercle somewhat dorsoventrally flattened, pointing distad. Mesobranchial tubercle longer than intestinal tubercle, obliquely directed, tip upcurved. Single intestinal tubercle prominent. Anterior margin of efferent branchial channel unisutured, interior lobe medially notched. Third maxilliped bearing flat-topped granules.

Cheliped merus in adult male longer than carapace, thickly set with rounded granules; carpus, propodus minutely granulate. Pereiopods minutely granulate.

( MNHN), dorsal view.

Sternites closely set with rounded granules. Plastron lacking lateral projections. Abdominal segments minutely granulate.

Male first pleopod with basal stalk slender, internal flange reduced, disto-external appendix minute; anterior margin of distal, petal-shaped tip evenly denticulate.

Figures

FIG. 7. — Raylilia uenoi (Takeda, 1995), 1 10.5 mm, New Caledonia, Grand Récif Sud, 22°52’S, 167°00’E

FIG. 8. — Raylilia uenoi (Takeda, 1995), 1 10.5 mm, New Caledonia, Grand Récif Sud, 22°52’S, 167°00’E (MNHN), first male pleo- pod. Scale bar: 1 mm.