DECAPODA. 
205 
Panojieus planissimus (Stimpson, as Xantho) from California, id. 1. c. 
p. 108. 
Cycloxanthus godeffroyi, sp. n., A. Milne-Edwards, 1. c. p. 80, pi. i. fig. 3, 
Upolu. 
Pilumnus fragifer and elatus, spp. nn., id. 1. c. p. 80, the first, pi. i. 
fig. 4, from the Indian Seas, the second from Upolu. P. depressus and 
marginatus^ spp. nn., Stimpson, 1. c. p. 109, Cape St. Lucas. 
Cymo deplanafus[-a], A. Milne-Edwards, 1. c. p. 81, Upolu. 
llueppellia lata, sp. n., id. ibid., Philippines. 
Acidops, g. n. ; somewhat allied to Pilumnus, orbits destitute of teeth 
or fissures, eye-peduncles flattened, with an acute anterior edge contin- 
uous with that of the margin of the carapace. A. fimhriatus, sp. n.. 
Cape St. Lucas. Stimpson, l.c. p. 111. 
PORTUNID.®. 
Neptunus madagascariensis, sp. n., Hoffmann, Pech. faun. Madag. v. 2, 
p. 8, pi. i. figs. 2-4, Nossy-Faly Island, near Madagascar. 
Thalamiita liclUri, sp. n., id. 1. c. p. 10, pi. i. fig. 5, Madagascar. 
Goniosoma dubixm, sp. n., id. 1. c. p. 11, pi. ii. figs. 0-8, lloimioii 
Island. 
Aclielous Manzanillo, Panama, jmd p>anamensis, 
sp. n., Panama ; Stimpson, Ann. Lyc. N. York, x. pp. Ill & 112. 
Eriphiid^e. 
Eriphia smithi (M'Leay) distinct from Icevirnana (Latr.) ; Hoffmann, 
1. c. p. 6, pi. i. fig. 1. 
GECARCINIDiE. 
Hylceocarcinus, g. n. ; third joint of external maxillipeds partially 
concealed by the second, exopodite without flagellum ; internal sub- 
orbital lobes separated from the front ; tarsi with six rows of spines. 
H. humii, sp. n., Nicobar Islands. Mousson, Ann. N. H. (4) xiv. pp. 
187-191. It is remarkable that this species exhibits the same shallow 
yellow scars on each side of the eye and on other parts of the carapace 
as Gecarcinus and Pelocarcinus. 
OcYPODIDiE. 
Ocypode ceratoplithalma (Pall.) and cordimanaQi^iv.) figured by C. K. 
Hoffmann, Rech. faun. Madag. v. 2, p. 13, pis. ii. figs. 9-13, iii. figs. 14 
& 15. 
Gelasimus inversus, sp. n., right hand the largest ; id. 1. c. p. 19, pi. iv. 
figs. 23-26, Nossy-Faly, Madagascar. G. marionis (Desm.) described ; 
id. 1. c. p. 15, pi. iii. figs. 16-18, an abnormal hand, fig. 22. 
Crossotonotus, g. n. ; carapace discoidal, front toothed, produced, infra- 
orbital lobe with a linear notch, basal joint of the outer antenna placed 
