Porcellanidae (Crustacea: Decapoda: Anomura) from New Caledonia and the Loyalty Islands Author Osawa, Masayuki text Zootaxa 2007 1548 1 49 journal article 10.5281/zenodo.178040 2cbe1502-c057-4a0c-8f15-c1815dcd4d20 1175-5326 178040 Petrolisthes perdecorus Haig, 1981 ( Fig. 8 E) Petrolisthes perdecorus Haig, 1981a : 265 , fig. 1 ( type locality: Howland Island ). Material examined. Loyaly Islands. Atelier LIFOU . Santal Bay. St. 1410 (St. 63A), between Cap Wekutr and Cap Wajez, 20°56.7’S , 167°03.1’E , 2–4 m , 25 Nov. 2000 , 2 males CL 4.3, 4.8 mm , 1 ovig. female CL 4.2 mm . St. 1456 (St. 66), Cila, 20°49.3’S , 167°10.4’E , 25–30 m , 26 Nov. 2000 , 1 male CL 4.0 mm. Remarks . Petrolisthes perdecorus is distinguished from the other Indo-West Pacific species of the genus by having the carapace with protogastric lobes each bearing a spine at the lateral extremity, distinctly trilobate rostrum armed with marginal spines ( Fig. 8 E), and carpi of the chelipeds with scattered small spines on the dorsal surface. Distribution. Petrolisthes perdecorus was recorded only from Howland Island , located just north of the equator in the central Pacific ( Haig 1981a ). This is the second record of the species, collected from depths of 2–30 m in the Loyalty Islands.