My. E. J. Miers on Ocypoda. 381 
3. Ocypoda macrocera, Milne-Kdwards. 
(Pl. XVII. figs. 2, 2a, 26.) 
Of this species, of which Mr. Kingsley had seen no speci- 
mens, there are in the British Museum but three males, one 
obtained at Pondicherry and two at the mouth of the Hoogly 
(Hon. East-India Co.). ‘They are at once distinguishable 
from O. ceratophthalma, typical examples of which they re- 
semble in the greatly elongated terminal styles of the ocular 
peduncles &c., by the form of the fingers of the smaller cheli- 
pede, which are lamellate and dilated to the apices, which are 
broad and subtruncated ; the dilatation, however, is much less 
than in O. Gaudichaudii. The lateral margins of the cara- 
pace are, moreover, more distinctly angulated than in that 
species and O. ceratophthalma. 
The stridulating-ridge on the inner surface of the palm of 
the larger chelipede is rather broad, closely, finely, and evenly 
striated, and bordered externally with hair; the fingers sub- 
acute. ‘The penultimate joints of the second and third legs 
are hairy on their inferior surface, as in O. ceratophthalma, of 
which species a larger series of examples might show O. ma- 
crocera to be merely a variety, though I could not venture to 
unite the two forms at present. 
4, Ocypoda egyptiaca, Gerstiicker. 
eel XE hose Se Sia:) 
This species, upon the distinctness of which from O. cera- 
tophthalma I have already remarked*, is united by Myr. 
Kingsley, who follows Kossman, with O. ceratophthalma, but 
is retained as distinct by Dr. De Man (¢. c. p. 247), who sum- 
marizes its principal specific characters. It is, in fact, easily 
distinguishable by the form of the carapace, which is arcuated 
and bulges out laterally behind the more or less rounded ex- 
terior orbital angle, by the finer, more crowded transverse 
striee of the upper part of the stridulating-ridge on the cheli- 
pede of the male, and by the existence of a patch of thick 
hair on the penultimate joints of the second legs only, and not, 
as usual in O. ceratophthalma and allied species, on the 
penultimate joint of the third legs also. The terminal styles 
of the eye-peduncles are usually curved. It should be stated 
that Kingsley had seen no specimens of this species. 
Specimens are in the British-Museum collection from 
Egypt (Sir J. G. Wilkinson), Red Sea, Gulf of Suez (BR. 
MacAndrew), Gulf of Akaba (Major Burton), El Tor 
* Ann. & Mag. Nat. Hist. ser. 5, ii, p, 409 (1878). 
