1895.] 
A. Alcock —Carcinological Fauna of India. 
2*25 
Egeria investigatoris , n. sp. 
This species closely resembles Egeria arachnoides , adult males being 
compared, but differs in the following particulars : — (1) the carapace is 
more nearly circular, owing to the greater convexity of the hepatic and 
pterygostomian regions; (2) the spines on the carapace, although 
almost tho same in arrangement, are markedly larger : (3) the sternum 
has a transverse group of spines on every segment ; (4) every abdomi¬ 
nal tergum except the last has a large median spine ; (5) the hiatus 
between the post-ocular tooth and the basal antennal joint is scarcely 
affected by a small denticle ; (6) the chelipeds in the adult male are 
2^ times the length of the carapace, and have the palm long, very 
slender, and cylindrical, and the fingers sharply and evenly denticulated 
all along their apposable edge. 
The legs are in fragments, but the joints that remain are extremely 
loug and slender. 
Length of carapace and rostrum ... 24 -f 5 = 29 millim. 
Breadth of carapace ... ... 24 ,, 
Length of male chelipeds ... ... 65*5 ,, 
hoc. Off Ceylon, 32 fathoms. 
Doclea, Leach. 
Doclea , Leach, Zool. Miscell., Yol. II. p. 41. 
Doclea, Milne-Edwards, Hist. Nat. Crust. I. 292. 
Doclea , Miers, Journ. Linn. Soc., Zool., Yol. XIY. 1879, p. 652. 
Body and appendages tomentose, usually very densely so. 
Carapace circular, armed at the sides, and often on the dorsal 
surface also, with a few spines. 
The rostrum consists of two vertically compressed spines which 
are fused together in almost the whole of their extent and are usually 
short: it has hence, usually, the appearance of a short flat emar- 
ginate beak, hardly breaking the general outline of the carapace. (In 
one species — Doclea tetrapfera —the rostrum is rather long). 
The eyes are very small, and the commencing orbits are formed by 
an acute post-ocular tooth and a little-prominent supra-ocular eave. 
The antennae are very short and inconspicuous — not reaching to the 
end of the short rostrum: the basal joint is short, broadly triangular, 
the apex forming a sharp tooth : the flagella are almost rudimentary. 
The buccal frame is somewhat arched in front. The external 
maxillipeds have the merus rather broader than the ischium, the 
antero-external angle being slightly produced. 
The chelipeds are short and slender in the female ; longer, stout, 
with an enlarged aud inflated palm, in the adult male. 
