DECAPODA (BRACHYURA). 
Crust . 15 
OCYPODIDiE. 
Ocypode africana (De Man) is quite distinct from hahli (De Haan) ; 
De Man, Notes Leyd. Mus. v. p. 155. 
Ocypode sp. from the Bonin Islands. Remarkable varieties in the 
prolongation of the eye-stalk beyond the eye, aud in the outline of the 
anterior border of the carapace ; C. Ishikawa, Am. Nat. xvii; p. 207, 
pi. iv. Critical note on these statements ; S. I. Smith, tom. cit. p. 427. 
GrAPSIDjE. 
Grapsus gracilipcs (M.-Edw.) is perhaps only a variety of maculatus 
(Catesby) ; De Man, l. c. p. 159. 
Metopograpsus quadridentatus (Stimps.), from Amoy, described; id. 1. c. 
p. 158. 
Plagusia tuberculata (Lam.) not geographically separated from de - 
pressa (Say), a specimen wholly agreeing with the latter being also found 
at Amboy na ; id. 1. c. pp. 168 & 169. 
Pyxidognathus, g. n. Near Gnathograpsus : exognath very enlarged, 
its lateral margins convex, ischiognath narrow at the base, merognath 
very large, auriculated ; external antennae very small, inserted in the 
lower angle of the orbit. P. granulosus , sp. n., Ovalau, Alph. Milne- 
Edwards, Bull. Soc. Philom., Dec., 1878. Hypsilograpsus deldeni (De 
Man, April, 1879) is the same ; De Man, Notes Leyd. Mus. v. p. 160. 
Sesarma buettikoferi , sp. n., Liberia, kamermani y sp. n., Congo, and new 
description of S. angolensis (Brito Capello) and indica (M.-Edw.) ; De 
Man, l. c. pp. 162-168. 
PlNNOTERIDJS. 
Hymenosoma lacustre (Chilton, as Elamene y 1882), from Lake Pupuke, 
New Zealand, more fully described ; C. Chilton, Tr. N. Z. Inst. xv. p. 69. 
LeuCOSIIDjE. 
Ilia nucleus (Herbst). Short note on its habits ; H. Lucas, Ann. Soc. 
Ent. Fr. (6) iii. p. lxxix. 
CaLAPPIDjE. 
Osachila stimpsoni } sp. n., T. Studer, Abh. Ak. Berlin, 1882 [1883] p. 15, 
pi. i. fig. 4, Ascension Island, 60 fath. 
DORIPPIDiE. 
Ethusa microphthalma (Smith). Individual differences ; S. I. Smith, 
P. U. S. Nat. Mus. vi. p. 22. 
Cymopolia gi'acilis, sp. n., id. 1. c. p. 20, South coast of New England, 
142 fath. 
