A. Alcock —Garcinological Fauna of India . 
272 
[No. 2, 
fifth longer than the carapace : except for a line of spinules along the 
posterior (lower) border of the raeropodite they are smooth. 
Greatest length of carapace (male) ... ... 16 millim. 
„ breadth „ ... ... 18 ,, 
Length of cheliped ... ... ... 72 „ 
Off Ceylon in deep-water. 
Colours in spirit: chelipeds and legs purplish white, carapace dull 
slaty purple. 
Sub-genus Aulacolambrus, A. M.-Edw. 
Aulacolambrus, A. Milne-Edwards, Miss. Sci. Mex. Crust., I. p. 147. 
Aulacolambrus, Miers, ‘ Challenger ’ Brachyura, p. 97. 
Pterygostomian region traversed, from the orbit to the afferent 
branchial orifice, by a deep channel, which is closed and converted into 
a tube by thick fringes of hairs : the lateral epibranchial spine is of 
huge size : the edges of the carapace chelipeds and legs are more or 
less conspicuously hairy. 
Key to the Indian species of the sub-genus Aulacolambrus. 
I. Carapace as long as broad, with a projecting rostrum and a 
distinct post-ocular constriction; its surface closely 
covered with rasp-like tubercles: carapace and legs not 
conspicuously hairy. L. sculptus. 
1. Antero-lateral border with large spines 
in front of the large lateral epibranchial 
spines : spines of inner edge of hand 
strongly curved upwards and outwards.. 
II. Carapace broad¬ 
er than long, its 
surface irregular¬ 
ly tuberculat e; 
rostrum not or 
hardly projecting: 
no p o st-ocular<{ 
constriction: mar¬ 
gins of carapace, 
chelipeds and legs 
fringed with re¬ 
markably long 
tangled hairs. 
2. Antero-lateral 
border with small 
teeth in front of 
the large lateral 
epibranchial 
spines: spines of 
inner edge of 
hand not curved. 
''a. No spines in mid¬ 
dle line of cara¬ 
pace, or on bran¬ 
chial regions. 
b. Some spines i n 
1 middle line of ca- 
r a p a c e, and on 
branchial regions: 
spines on outer 
edge of hand very 
l long. 
L. curvispinis. 
L. hoplonotus. 
L. whitei. 
Lambrus (. Aulacolambrus ) sculptus , A. M.-Edw. 
Lambrus sculptus , A. Milne-Edwards, Nouv. Archiv. du Mus., VIII. 1872, 
p. 258, pi. xiv. fig. 3. 
Lambrus sculptus, Miers, ‘ Challenger 5 Brachyura, p. 98. 
Lambrus sculptus, J. R. Henderson, Trans. Linn. Soc., Zool. (2) V. 1893, p. 350. 
The carapace is triangular, broad behind, and as long as broad. 
The rostrum is triangular, dorsally grooved and declivous, and tapers 
