220 COtLECIIONS FEOM MELAITESIA. 



largest near the base of the lower (immobile) finger ; fingers brown, 

 the coloration not extending over the inner or outer surface of the 

 hands, inner margins rather obscurely but regularly denticulated, 

 apices acute ; ambulatory legs rather long for a species of the genus. 

 Length of the carapace of the largest male nearly 11 lines (23millim.), 

 breadth 1 inch | line (27 millim.). 



There is in Dr. Coppinger's collection a small female from Warrior 

 Eeef, Torres Straits, and a yet smaller male from Albany Island, 

 3-4 fms. ; also in the second collection an adult male from Thurs- 

 day Island, 3-4 fms. (No. 177). In the Museum collection is 

 an adult male from Torres Straits (Mr. McParlane). I cannot 

 identify this species with any of the Australian forms described 

 by Mr. Haswell. 



From the Pilumnus hleekeri, recently described by me *, which 

 inhabits New Guinea, and which this species somewhat resembles 

 in external appearance, it is distinguished by the much narrower 

 fissure of the front, different spinulation of the antero-lateral 

 margins, and the three spines on the upper surface of the palms of 

 the chelipedes. 



In Pilumnus vesiitus, Haswell (Cat. p. 68), from Port Jackson 

 and Port Stephens, which has the carapace covered with stiff yellow 

 hairs as in P. pulcher, the surface is not granulated, and the spinu- 

 lation of the carapace and chelipedes is different. 



55. Pilumnus rufopunctatus, Stimpson. 



Three specimens (two males and a female) were obtained at Port 

 Jackson, 5-7 fms. (No. 1 04). 



Mr. Haswell records it from Port Stephens and Western Port. 



It nearly resembles the following species (P. lanatus), which 

 occurred with it, but is distinguished by the granulations of the 

 chelipedes extending over the whole of the outer surface of the 

 hand, and the tuberculation of the carapace, which, however, seems 

 to be a variable character, &c. 



Possibly the P. rufopunctatus of Stimpson is itself to be identified 

 with P. tomentosus of Milne-Edwards. This is a point which cannot 

 be satisfactorily determined from the very brief diagnosis of the 

 latter author. 



56. Pilumnus lanatus, Latreille ? (Plaid XXI. fig. B.) 



As the P. lanatus has been only very briefly described, and the 

 identification of this species must be regarded as uncertain, I append 

 the following detailed description : — 



In the specimens I thus designate the carapace is moderately 

 convex, of the usual shape, and, as well as the legs, is covered with 

 a short dense brown pubescence, which is absent in great measure 

 from the iirferior surface of the body and from the anterior and 



* Ann. & Mag. Nat. Hist. ser. 5, v. p. 235 (1880). 



