Mr. E. J. Miers on Ocypoda. 379 
with the penultimate joints tuber- 
culated,not dilated and compressed, 
and without lonz marginal hairs. O. Kuhl, De Haan. 
Stridulating-ridge striated below. 
Ambulatory legs asin O. Kiihii.. O. africana, De Man. 
** Chelipede without a stridulating- 
ridge. 
Penultimate joints of the second and 
third legs tuberculated, not dila- 
ted, and fringed with short stiff 
LeRUS eee Be oceeacs Mecaines ears ae eee O. cordimana, Desm. 
I. Ocular pedicels prolonged beyond the cornea as a spine or style. 
1. Ocypoda ceratophthalma (Pallas). 
Gel, VIL ies Lis Tha) 
The series in the British-Museum collection includes speci- 
mens from the Mauritius (Dr. Leach and Lady Ff. Cole); Ami- 
rante Islands (Dr. R. W. Coppinger, H.M.S. ‘ Alert’) ; Port 
Natal; Indian Ocean (Gen. Hardwicke) ; Philippine Islands 
(Cuming) ; Japan; Celebes, Macassar, and Batjan (coll. Dr. 
Bleeker) ; Duke-of-York Island (Rev. G. Brown) ; Moreton 
Island, New South Wales; Friday Island, Torres Straits 
(Dr. Rh. W. Coppinger, H.M.S. ‘Alert’) ; Fiji Islands (HLS. 
‘Herald’); Samoa Islands (Rev. 8S. J. Whitmee) ; and Sand- 
wich Islands (W. H. Pease). 
Two females are in the collection, labelled as having been 
received from St. Christopher’s (Dr. J. H. Gray) ; but the 
locality certainly needs confirmation, since it would appear, 
from the details furnished by Kingsley (¢. c. p. 180), that this 
species has not hitherto been recorded from localities beyond 
the limits of the Oriental region. 
In this species the exterior orbital angles of the carapace 
are nearly right angles, or slightly acute and projecting laterally 
very slightly beyond the lateral margin of the carapace; the 
terminal styles of the ocular peduncles in the adult male usually 
project far beyond the outer orbital angles, but are sometimes 
much shorter, and in the young may be tuberculiform or even 
obsolete. The stridulating-ridge on the inner surface of the 
larger chelipede in the adult (both male and female) consists 
in its uppermost part of small tubercles, which widen out 
into small transverse secondary ridges; in the lower part the 
stridulating-ridge is usually very closely and finely striated, 
and is bordered externally (in the adult male at least) by a 
patch of fine close hair; there is an inferior patch of thick 
hair on the penultimate joints of the second and third ambu- 
latory legs. 
