DECAPODA (MACRURA). 
Crust. 21 
Hotnarus vulgaris (M.-E.). Notes on the growth of the cephalothorax 
in the lobster ; T. Tullberg, suprd, General Subject (generation and 
development). On the distortions of the claws ; Hyatt, P. Bost. Soc. xxi. 
p. 278. 
Paraneplirops setosus , notes on its differences from Astacus fiuviatilis ; 
Chilton, N. Z. J. Sci. i. p. 232. 
Thalassinidtb. 
Callianassa madagassa , sp. n., Lenz & Richters, Beitr. p. 7, pi. 1, 
figs. 20-23, Madagascar. 
Callianassa mauritiana , sp. n., Miers, P. Z. S. 1882, p. 341, Mauritius. 
Gebia spinifrons , sp. n., Haswell, P. Linn Soc. N. S. W. vi. p. 762, and 
Cat. Austral. Crust, p. 165, pi. iii. fig. 6, Port Stephens, N. S. Wales, 
8 fath. 
CRAN00NID2E. 
Cheraphilus ferox (G. 0. Sars) ; Hoek, Crust. ‘ Willem Barents/ p. 9, 
pi. i. fig. 3, Arctic Sea. 
Cheraphilus neglectus , sp. n, G. 0. Sars, Forh. Selsk. Chr. 1882, p. 45, 
pi. i. fig. 7, Norway. 
Ceraphilus agassizi , sp. n., S. I. Smith, Bull. Mus. C. Z. x. p. 32, pi. vii. 
figs. 4 & 5, East Coast of United States, 31-35° N. lat., 263-603 fath. 
Sclerocrangon , g. n., proposed for Crangon boreas (Phipps) ; Sars, l. c. 
p. 45. 
Pontophilus brevirostris (S. I. Smith, 1881), and gracilis , sp. n„ the 
latter East Coast of United States, 32° N. lat., 225 fath., both figured ; 
5 1. c. pp. 35 & 36, pi. vii. figs. 1-3. 
Pontophilus jacqueti, sp. n., A. Milne-Edwards, Rapp, faune sous-marine, 
p. 41, Atlantic. 
Sabinea princeps, sp. n., id. 1. c. p. 38, pi. viii. fig. 1, East Coast of 
United States, 33-39° N. lat., 372 j -740 fath., 56-98 mm. 
Rhachocaris , g. n. Anterior thoracic legs stout, non-chelate ; second 
pair slender, chelate, and with multiarticulate carpi; coxae of the 
external maxillipeds articulated with the adjacent edge of the carapax ; 
antennal scales broad, ovate, ciliate on both margins. Epipods in the 
seventh and eighth somite, no podobranchiae, arthrobranchiaa two in the 
ninth, one in the tenth, eleventh, twelfth and thirteenth, pleurobranchiaa 
in the tenth, eleventh, twelfth, thirteenth, and fourteenth somites. R. 
agassizi , sculpta , and longirostris , spp. nn., 54-111 mm., East Coast of 
United States, 31-38° N. lat., 464-1186 fath. ; S. I. Smith, l. c. pp. 41-53, 
pis. v. figs. 1-3, and vi. figs. 1-3. 
Atyidjj. 
Atya scabra (Leach), variations and occurrence in the rivers of the 
Island S. Thome, W. Africa ; Greeff, SB. Ges. Marb. 1882, pp. 35-37. 
Miersia agassizi and gracilis , spp. nn., East Coast of United States, 
31-41° N. lat., 457-1632 fath. Branchial formula nearly the same as in 
