Ancylodactyla elata ( Zarenkov, 1994 ) Galil, 2004

Galil, Bella S., 2004, A new deep water leucosiid genus (Crustacea, Decapoda, Brachyura), Zoosystema 26 (3), pp. 495-502 : 497

Ancylodactyla elata ( Zarenkov, 1994) n. comb.

( Figs 1A ; 2A )

Praebebalia elata Zarenkov, 1994: 106 , pls 7, 8.

MATERIAL EXAMINED. — Indonesia. Kai I., KARUBAR, stn DW 2, 05°47’S, 132°13’E, 209-240 m, 22.X.1991, 1 5.5 mm cl. — Kai I., KARUBAR, stn DW 18, 05°18’S, 133°01’E, 205-212 m, 24.X.1991, 1 3.8 mm cl .; 4 4.3-5.2 mm cl. — Tanimbar I., KARUBAR, stn DW 49, 08°00’S, 132°59’E, 210- 206 m, 29.X.1991, 3 3.4-3.7 mm cl.; 10 3.5-3.6 mm cl.

New Caledonia. BATHUS 1, stn CP 687, 20°34.62’S, 165°07.30’E, 408-440 m, 16.III.1993, 5 3.7-4.1 mm cl .; 10 3.3-3.8 mm cl. — BATHUS 1, stn CP 694, 20°35.88’S, 164°58.28’E, 400-500 m, 17.III.1993, 1 5.0 mm cl. — BATHUS 1, stn CP 695, 20°34.59’S, 164°57.88’E, 410-430 m, 17.III.1993, 48 4.7-5.1 mm cl.; 13 3.7-4.7 mm cl. — BATHUS 1, stn CP 698, 20°34.18’S, 164°57.32’E, 491-533 m, 17.III.1993, 3 4.3-4.8 mm cl. — BATHUS 1, stn CP 705, 21°02.25’S, 165°37.87’E, 350-400 m, 18.III.1993, 2 3.4, 4.3 mm cl.; 7 3.4-3.9 mm cl. — BATHUS 4, stn CP 946, 20°33.81’S, 164°58.35’E, 386-430 m, 10.VIII.1994, 2 4.6, 4.7 mm cl. — BATHUS 4, stn CP 947, 20°33.72’S, 164°57.72’E, 470-490 m, 10.VIII.1994, 26 4.6-5.4 mm cl.; 6 4.4-4.8 mm cl.

Loyalty Islands. MUSORSTOM 6, stn DW 461, 21°06’S, 167°26.20’E, 240 m, 21.II.1989, 1 4.8 mm cl. DISTRIBUTION. — Mozambique, Indonesia, New Caledonia, Loyalty Islands ; 206-533 m depth.

DESCRIPTION

Dorsal surface of carapace uniformly paved with minute rounded granules. Frontal lobes subtruncate, slightly sinuous. Hepatic region slightly tumid. Anterolateral margins medially constricted. Epibranchial lobe convex, prominent; margin prominently lamellate. Intestinal region inflated, prominent, laterally demarked by shallow grooves. Posterior margin lamellar. Anterior margin of efferent branchial channel narrowly slit medially. Third maxilliped minutely granulate. Chelipeds minutely granulate; merus in adult male about 1.5 as long as carapace; fingers about half as long as propodus. Lower margin of propodus of first pereiopod granulate. Abdominal sternites, somites closely set with minute granules. Subdistal denticle on fused male abdominal segment prominent, medially sulcate. Male first pleopod slightly curved, distally with few marginal setae; second pleopod sinuous, distally curved.

REMARKS

Zarenkov’s (1994) description and illustrations of Praebebalia elata emphasize the lamellate lateral margins of the carapace, as well as the prominent intestinal region, the keeled pterygostomian margin, the basio-lateral protuberances on fused male abdominal segment, and the shape of the first and second male pleopods. These findings greatly increase the known range of the species.

Figures

FIG. 1. — A, Ancylodactyla elata (Zarenkov, 1994) n. comb., 4.7 mm cl., New Caledonia, BATHUS 1, stn CP 695, 20°34.59’S, 164°57.88’E, 410-430 m, 17.III.1993 (MNHN), dorsal view; B, A. elongata (Zarenkov, 1969) n. comb., 5.1 mm cl., New Caledonia, BATHUS 4, stn DW 942, 19°04.26’S, 163°27.36’E, 270-264 m, 8.VIII.1994 (MNHN), dorsal view; C, A. nana (Zarenkov, 1990) n. comb., 9.3 mm cl., New Caledonia, BATHUS 2, stn DW 737,23°03.42’S, 166°39.97’E, 350-400 m, 13.V.1993 (MNHN),dorsal view.

FIG. 2. — A, Ancylodactyla elata (Zarenkov, 1994) n. comb., 4.7 mm cl., New Caledonia, BATHUS 4, stn CP 946, 20°33.81’S, 164°58.35’E, 386-430 m, 10.VIII.1994 (MNHN), first and second pleopods; B, A. elongata (Zarenkov, 1969) n. comb., 5.1 mm cl., New Caledonia, BATHUS 4, stn DW 942, 19°04.26’S, 163°27.36’E, 270-264 m, 8.VIII.1994 (MNHN), first and second pleopods; C, A. nana (Zarenkov, 1990) n. comb., 9.3 mm cl., New Caledonia, BATHUS 2, stn DW 737, 23°03.42’S, 166°39.97’E, 350-400 m, 13.V.1993 (MNHN), first and second pleopods. Scale bars: 1 mm.