233 
1895.] A. Alcock — Garcinological Fauna of India. 
Oar specimens all came from tlie vicinity of the mouth of the River 
Hooghly. 
Alliance II. Lissolda. 
Hoplophrys, Henderson. 
Hoplophrys , Henderson, Trans. Linn. Soc., Zool., Vol. (2) Y. 1893, p. 346. 
Carapace subovate (elongate pentagonal), with the regions moder¬ 
ately defined and the surface spinose. The rostrum is composed of two 
short, flattened, acute, divergent spines. The commencing orbits are 
formed by a supra-ocular eave which has its antero-external angle very 
strongly and acutely produced, and which is in close contact with a 
slightly excavated post-ocular tooth, only a very narrow fissure being 
left between: below, there is no trace of an orbital floor. The eyes 
are short, and even when fully retracted the cornea is hardly at all 
concealed from dorsal view. The basal antennal joint is very acutely 
triangular, the spinous termination being distinctly visible from above : 
the very short slender mobile portion of the antenna is exposed. The 
antero-external angle of the merus of the external maxillipeds forms 
a foliaceous lobe: the merus therefore is broader than the ischium; 
the palp is attached to its internal angle. The trunk-legs are strongly 
spinose: the chelipeds, even in the adult male, are slender, but still 
differ from those of the female in having the fingers more arched and 
closely apposable only in the distal half. 
The abdomen in the male consists of seven distinct segments; but 
in the female of only five—the fourth to the sixth being fused together. 
Hoplophrys oatesii , Henderson. 
Hoplophrys oatesii, Henderson, Trans. Linn. Soc. Zool., 1893, p. 347, pi. xxxvi. 
figs. 1—4. 
The gastric region of the carapace is prominent, with two curved 
rows of spines, the front row (convex anteriorly) consisting of seven 
spines of which the middle one is the largest, the back row (slightly 
convex posteriorly) consisting of three spines of which the middle 
one — the largest of all the spines on the gastric area—is compressed 
laterally. On the cardiac area, as well as on the gastric area, are two 
spines placed side by side. On either branchial area are three spines 
arranged in a triangle, of which the anterior is the largest of all the 
spines on the carapace, while the most external, which occupies the 
lateral epibranchial angle, is the most acute and is also unequally bifid. 
There are also two or three spinules on the hepatic area. Between the 
