OCR Text |
Show 1877.] CRUSTACEA, CHIEFLY FROM SOUTH AMERICA. 659 tremity of the penultimate joint of the peduncle ; the hands narrow oblong-oval, with small spiniform tubercles. The sides of the carapace, legs, and basal scales of the external autennse clothed with long light fulvous hairs. Length of carapace about 1 inch. Hab. British Columbia, Vancouver Island. (Coll. Brit. Mus.) A single specimen presented by J. K. Lord, Esq., is in the national collection. It is labelled " Clibanarius lineatus," but is certainly not the species described under that name by Milne-Edwards, Ann. Sci. Nat. (ser. 3) v. p. 62 (1848), and figured by Dana, U.S. Expl. Exp. Crust, i. p. 462, pl. xxix. fig. 2 (1852), from theSamoan Islands1. PAGURUS? sp. With C. cayennensis a specimen was sent that, I think, must be referred to the restricted genus Pagurus, on account of the short, thick eye-peduncles; but as the anterior legs are both wanting, it cannot be referred with absolute certainty to any one of the genera of the family Paguridse. I cannot identify it at present with any species known to me, and refrain from giving it a distinct specific designation, on account of its mutilated condition. The eye-peduncles are much shorter than the anterior margin of the carapace, their basal scales small, ovate-acute, and entire. The basal scale of the external antennse is long, slender, nearly as long as the peduncle of the external antennse, and longer than the eyes. The second and third legs have the antepenultimate and penultimate joints short, subequal, shorter than than the tarsi, granulous or even spinose on their upper margin, tarsi long, twisted and channelled. This species somewhat resembles Eupagurus obesocarpus, Dana (U.S. Expl. Exp. xiii. Crust, i. p. 445, pl. xxvii. fig. 5), from Valparaiso (?), but differs in the shorter eyes and much longer acicle of the external antennae. Hab. Cayenne. MACRURA. PALCEMON, Fabricus. The species of this genus are very numerous and are found in all parts of the world, inhabiting both salt, brackish, and fresh water. Their determination is a matter of great difficulty, on account of the changes which the animal undergoes as it increases in age. The 1 The Pagurus isochirus, named but not described by White (List Crust. Brit. Mus. p. 59, 1847), belongs to this genus, and is founded upon a single specimen of unknown locality in the British-Museum collection. This specimen generally resembles C. carnescens, but is of a uniform light-yellow colour, without spots or vitte, inclining to orange at the extremity of the tarsi. Length nearly 1 inch. Paguruspilosimanus, White (I. c. p. 60), also founded upon a single specimen of unknown habitat, belongs, I think, to this genus, but is in too mutilated a condition for detailed description. It is, however, remarkable for the great length of the eye-peduncles, which are about once and a half the length of the anterior margin of the carapace, with a small spiniform basal scale, and a broad crimson vitta. The anterior legs are now wanting in this specimen. Length about 1 inch. |