338 MR. T. BELL ON THE GENUS CANCER. 
The carapax is very broad ; the surface minutely granulated with scattered impressed 
points. The margin is divided into ten shallow contiguous lobes, the extreme edge of 
which has a number of small granular teeth, and which from the fourth to the ninth have 
one tooth more prominent than the rest. There is a peculiarity in this species which 
does not occur in any other of this genus, nor perhaps in the whole order; the furrows 
which separate the branchial from the genital and cardiac regions, and which in most 
are distant, in some degree resembling the letter H, in this species coalesce on the 
median line, forming a single deep hollow; and thus the outlines of the genital and 
cardiac regions are placed far apart, whilst the branchial regions closely approach each 
other. The front has three rounded lobes, of which the middle is the longest. The 
tooth over the inner canthus of the orbit is obtuse, and rather less prominent than the 
frontal lobes. The tooth-like process of the basilar joint of the external antenne forms 
an obtuse angle. The legs are very long; the third joint of the second pair extending 
considerably, and even that of the first in some degree, beyond the edge of the carapax. 
They are wholly without spines; nor are they hairy in any of the specimens I have 
seen, with the exception of the last joint of the four posterior pairs. The first pair is 
thick and strong, and its surface smooth. A simple caria extends along the carpus, 
terminating in an angular projection ; and a similar carina occupies the upper edge of 
the hand, on the outer surface of which are five longitudinal lines of impressed dots, 
but without any elevation. The sides of the four posterior pairs of legs are also marked 
with lines of impressed dots ; and the last joint of each is furrowed at the sides, and 
has a longitudinal crest of hair on the upper, and two on the lower, edge. The last 
joint of the abdomen in the male forms an equilateral triangle. 
Colour above light red, indistinctly dotted with yellow ; beneath yellowish. Tips of 
the claws blackish. 
Length 3+ inches, breadth 6. 
The only specimens which I have seen of this species were brought by Mr. Cuming 
from Valparaiso, where they are taken by nets in deep water: the claws are considered 
a great delicacy, and the fishermen are in the habit of breaking them off, and then 
throwing the animals, still alive, again into the water. 
The indigenous name is Boco. 
2. Cancer Epwarpsit. 
Tab. XLIV. 
Canc. testé granulaté ; margine antico-laterali decem-lobato, lobis latis, contiguis, profundeé 
dentatis ; manibus supra obsoleté tuberculoso-carinatis ; maris abdominis articulo ul- 
timo antice producto. 
Hab. apud Valparaiso. (Cuming.) 
3 Mus. Soc. Zool. ¢ ¢ Mus. Bell. 
