REPORT ON THE BRACHYURA. 
margin. Carpus and palm with some small spines on their superior margins, and with the 
lower margins minutely tuberculate or spinuliferous ; palm compressed and very slightly 
turgid in the middle, and slightly longer than the wrist, fingers about as long as palm, 
compressed, incurved toward the apices and minutely dentate on the inner margins, which 
are nearly in contact at the base. Ambulatory legs elongate and very slender ; merus- 
joihts with a strong spine (which is sometimes bifid) at the distal extremity of the upper- 
margin ; dactyli slender, in the fourth and fifth legs slightly falciform. Colour yellowish- 
brown or reddish. Carapace and chelipedes minutely pubescent, and there are some 
longer hairs on the carapace near the bases of the spines and on the margins of the cheli- 
pedes and ambulatory legs. 
Adult 
Lines. 
Millims. 
Length of carapace and rostrum, ..... 
n 
15-5 
Breadth of carapace, nearly ...... 
H 
9 
Length of a chelipede, nearly ...... 
n 
23 
Length of a penultimate ambulatory leg (the only one remaining 
attached), ....... 
18 
38 
Stenorhynchus spinifer, n. sp. (PI. I. fig. 2). 
The carapace is subtriangulate, longer than broad, and not constricted behind the 
eyes, and bears a median spine upon the gastric region (not shown in the figure) and 
another on each side, placed midway between this and the postocular spine ; there 
existed also apparently a rounded tubercle or prominence upon the cardiac region, and 
possibly others near the front of the branchial region. The spines of the rostrum being 
broken, their exact length cannot be given, but they exceed half the length of the 
carapace. There is a strong spine on the upper margin of the orbit in front of the eye, 
and also a strong postocular spine. 
The eye-peduncles are moderately robust ; the cornese considerably thicker than the 
peduncles, with a small tubercle on the anterior and upper surface, the bases of the 
antennules are lodged in very deep longitudinal fossettes ; the very slender basal joints 
of the antennse, which are not joined with the front at the distal extremities, are armed 
with a longitudinal series of five spinules, whereof the second from the distal extremity 
is the longest ; the following joint is short, the next considerably elongated, slightly 
longer than the basal joint ; the flagella filiform ; the merus-joint of the outer maxillipedes 
has its antero-internal angle slightly produced and rounded, and has two or three spinules 
on its exterior face, near to the outer margin ; the inner margin is fringed with long 
hairs. The carapace is scantily clothed with fine hairs. Colour (in spirit) yellowish- 
brown. 
Adult £ . 
Length, of carapace to base of rostrum, 
Breadth of carapace, about 
Lines. Millims. 
4£ 9-5 
8-5 
