Petrolisthes scabriculus ( Dana, 1852 )

Osawa, Masayuki, 2007, Porcellanidae (Crustacea: Decapoda: Anomura) from New Caledonia and the Loyalty Islands, Zootaxa 1548, pp. 1-49 : 28-29

Petrolisthes scabriculus ( Dana, 1852)

( Fig. 8 C, D)

Porcellana scabriculus Dana, 1852: 424 (type locality: Sulu Sea); 1855: pl. 28, fig. 13. Petrolisthes scabriculus .— Haig, 1964: 358, fig. 2; 1979: 120, fig. 1.— Nakasone & Miyake, 1968b: 107, text-fig. 6.— Hsieh et al., 1997: 291, figs. 5F, 10.

Material examined. New Caledonia. Maitre Islet, lagoon, 22°10.35’S, 166°25.85’E, 21 m, 10 Nov. 1995, coll. J. Lowry, 2 males CL 5.8, 6.6 mm. Woodin Channel, lagoon, 18 Nov. 1992, coll. J.-L. Menou, 2 males CL 3.6, 5.2 mm. Pins Island, lagoon, Aug. 1993, coll. Menou, 1 female CL 5.6 mm, 1 ovig. female CL 7.8 mm. Maitre Islet, lagoon, 22°19.35’S, 166°25.85’E, 10 m, sponge, coll. I. Takeuchi, 10 Nov. 1995, 1 male CL 5.8 mm, 2 females CL 4.1, 5.2 mm, 1 ovig. female CL 4.9 mm. Maitre Islet, lagoon,, 22°19.35’S, 166°25.85’E, 20 m, green sponge, coll. I. Takeuchi, 10 Nov. 1995, 3 males CL 4.0– 7.6 mm, 3 ovig. females CL 4.7–6.3 mm. Maitre Islet, lagoon, 3 m, 13 Sep. 1978, coll. C. Vadon, 1 male CL 6.1 mm. Récif du Croissant, reef, lagoon, 9 m, coral, 29 Sept. 1978, coll. C. Vadon, 1 male CL 3.8 mm. Lagon, St. 253, 22°22’S, 166°23’E, 16 m, coll. B. Richer de Forges/ ORSTOM, 2 males CL 5.6, 6.3 mm. Récif du Croissant, lagoon, 5 m, coral, 21 Sep. 1978, coll. C. Vadon, 1 male CL 5.4 mm, 1 female CL 4.0 mm. Nouméa., lagoon, St. 258, 22°21’S, 166°21’E, 10 m, coll. B. Richer de Forges/ ORSTOM, 1 ovig. female CL 5.6 mm. Maitre Channel, lagoon, 20 m, tubes of Eunicidae, Jun. 1992 , coll. P. Bouchet, 2 male CL 4.6, 7.6 mm, 1 female CL 5.6 mm, 1 ovig. female CL 7.7 mm. Maitre Islet, lagoon, 6–8 m, 29 Mar. 1993, coll. P. Bouchet, 1 ovig female CL 5.2 mm. Récif du Larégnère, lagoon, 12–16 m, 3 May 1993, 2 male CL 3.9, 5.0 mm, 1 female CL 5.1 mm. Séche Croissant, lagoon, 22°19.90’S, 166°22.30’E, 13 m, Pocillopora sp., 26 Apr. 1995, 1 female CL 4.7 mm. Passe de Boulari, lagoon, St. 505, Pocillopora , 12 Apr. 1994, coll. J.-L. Menou, 1 male CL 2.8 mm. Grande Rade, lagoon, 10–11 m, 14 Apr. 1993, coll. P. Bouchet, 1 male CL 4.0 mm. South of Grand Récif, St. 294, 22°42’S, 166°43’E, 21 m, coll. B. Richer de Forges/ ORSTOM, 1 male CL 6.5 mm. Pins Island, St. 589, 22°32’S, 167°24’E, 31 m, 18 Jul. 1985, coll. B. Richer de Forges-ORSTOM, 1 ovig. female CL 6.3 mm. Pins Island, St. 593, 22°33’S, 167°20’E, 25 m, 18 Jul. 1985, coll. B. Richer de Forges-ORSTOM, 1 male CL 5.0 mm. Ouen Island, Prony Bay, lagoon, St. 110, 22°24’S, 166°47’E, 40 m, coll. B. Richer de Forges/ ORSTOM, 2 males CL 4.3, 5.8 mm. Nouméa, St. 283, 122 °27’S, 166°24’E, 3 m, coll. B. Richer de Forges/ ORSTOM, 1 female CL 3.0 mm. N/ O "Alis" Campagne SURPRISES, St. DW1395, 18°17.6’S, 163°01.9’E, 34–36 m, 13 May 1999, coll. B. Richer de Forges-IRD, 1 male CL 3.4 mm, 1 female CL 4.4 mm.

Loyalty Islands. Lifou Island. Santal Bay. Atelier LIFOU. St. 1458 (St. 3), Ngoni, 20°46.7’S, 167°03.1’E, 17–24 m, dredge, 4 Nov. 2000, 1 female CL 5.5 mm. St. 1451 (St. 48B), Esao, 20°47.3’S, 167°06.8’E, 10–21 m, 19 Nov. 2000, 1 male CL 6.3 mm, 1 ovig. female CL 5.6 mm. St. 1454 (St. 58), Cap Lefèvre (= Nem), 20°56.65’S, 167°02.0’E, 15–18 m, 23 Nov. 2000, 1 ovig. female CL 5.0 mm. St. 1434 (St. 12), Huca Htighé Island, 20°52.5’S, 167°08.1’E, 5–20 m, 6 Nov. 2000, 1 male CL 3.3 mm. St. 1410 (St. 63A), between Cap Wekutr and Cap Wajez, 20°56.7’S, 167°03.1’E, 2–4 m, 25 Nov. 2000, 1 male CL 2.3 mm. St. 1410 (St. 63B), between Cap Wekutr and Cap Wajez, 20°56.7’S, 167°03.1’E, 2–4 m, 25 Nov. 2000, 1 male CL 2.3 mm. St. 1457 (St. 67), Ngoni, 20°46.8’S, 167°02.75’E, 5–10 m, 27 Nov. 2000, 1 male CL 4.9 mm, 1 ovig. female CL 6.1 mm.

Remarks. The relationships between this species and two congeners, P. militaris and P. heterochrous , are discussed in the Remarks of P. militaris .

Distribution. Gulf of Thailand, Philippines Islands, Indonesia, New Guinea, western and eastern Australia, Nansha Islands in China; Taiwan, Ryukyu Islands, New Caledonia, and the Loyalty Islands; shallow water to about 55 m, frequently in association with corals ( Haig 1979; Hsieh, et al. 1997; Yang & Naiyanetr 1997; present study).

Figures

FIGURE 8. Petrolisthes militaris (Heller, 1862), male, CL 10.0 mm, New Caledonia, Maitre Islet (A, B); Petrolisthes scabriculus (Dana, 1852), male, CL 7.6 mm, New Caledonia, Maitre Islet (C, D); Petrolisthes perdecorus Haig, 1981, male, CL 4.8 mm, Loyalty Islands, St. 1410 (E). A, C, rostrum and right ocular peduncle, dorsal view; B, D, left cheliped (marginal setae drawn as simplified, short plumose setae on transverse ridges omitted); E, rostrum and ocular and antennal peduncles, dorsal view. Scales equal 1.0 mm.