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Show 44 MR. E. J. MIERS ON CRUSTACEA FROM [Jan. 14, ARCANIA GLOBATA. Arcania globata, Stimpson, Proc. Ac. Nat. Sci. Phil. p. 160(1858). A single specimen, male, was collected in 24 fms., in lat. 34° 8 N., long. 126° 24' E. The legs are unfortunately wanting ; but the form and armature of the carapace and rostrum agree exactly with Stimpson's description. Its nearest allies are apparently the Arcania tuberculata of Bell (Trans. Linn. Soc. xxi. p. 310, pi. xxxiv. fig. 8, 1855)-from which it differs in the longer, more acute, and equal spines on the surface of the body,-and the Arcania erinacea of Fabricius, which has the legs spinulose and the front much more deeply incised. There is a second specimen, from the " Eastern Seas," in the British-Museum collection. I take this opportunity of noting that the Arcania granulosa described by me (Trans. Linn. Soc. ser. 2, Zool. i. p. 240, pi. xxxviii. fig. 29, 1877) must probably be united with the Arcania 1 l-spinosa of De Haan, Faun. Japon., Crust, p. 135, pi. xxxiii. fig. 8 (1841), the characters given not being sufficient to distinguish it from that species. ARCANIA ORIENTALIS, sp. n. Carapace subglobose, compressed, with the front somewhat produced, and with two depressions, well defined posteriorly, separating the cardiac and branchial regions; the whole of the upper surface covered with small closely-placed granules. Cardiac and intestinal regions very high and convex. Front slightly bilobed, with a median sulcus between the eyes ; lateral margins of the carapace without spines ; posterior margin straight, and forming on each side a prominent but rounded angle with the postero-lateral margins. Anterior legs rather slender, with the arm very finely granulated; wrist and hand nearly smooth. Postabdomen of the male narrow-triangular, with all the joints except the first and last coalescent; the coalesced portion is marked with a longitudinal median sulcus, a prominence on each side at base, and a prominent acute tubercle at the distal extremity, the terminal joint is narrow and elongated. Length and breadth about 3 lines. Two individuals, males, are in the collection :-one obtained in lat. 33° 10' N., long. 129° 12'E., at 36 fms.; the other at 30 fms., in lat. 34° 10' N., and long. 136° 47' E. This species is distinguished from its congeners by the evenly granulated carapace, which is quite destitute of spines. The granules in one specimen preserve some faint traces of a red coloration. ANOMURA1. D R O M I D E A. DROMIID^E. CRYPTODROMIA, sp. A very small specimen, obtained at 30 fathoms, in lat. 34° 10' N., long. 136° 47' E., is in the collection. 1 For convenience' sake, Dana's arrangement and nomenclature of the groups of Anomura is followed. |