44 MR. E. J. MIERS ON CRUSTACEA FROM [Jan. 14, 



Arcania GLOBATA. 



Arcania ylobata, 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 \-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 pro- 

 duced, and with two depressions, well defined posteriorly, separating 

 the cardiac and branchial regions ; the whole of the upper suiface 

 covered with small closely-placed granules. Cardiac and intestinal 

 regions very high and convex. Front sliglitly bilobed, with a median 

 sulcus between the eyes ; lateral margins of the carajjace without 

 spines ; posterior margin straight, and forming on each side a promi- 

 nent but rounded angle with the postero-lateral margins. Anterior 

 legs rather slender, vf ith 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 por- 

 tion 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 granu- 

 lated carapace, which is quite destitute of spines. The granules in 

 one specimen preserve some faint traces of a red coloration. 



ANOMURA'. 

 Dromidea. 



Dromiid^. 

 Cryptodromia, sp. 



A very small specimen, obtained at 30 fathoms, in lat. 34° 10' N., 

 long. 136° 47' E., is in the collection. 



' For convenience' sake, Dana's arrangement and nomenclature of the groups 

 of Anomura is followed. 



