340 MR. T. BELL ON THE GENUS CANCER. 
has three strong acute teeth, of which the middle one is the most prominent : there is 
also a strong triangular tooth over the inner canthus of the orbit, a smaller one over the 
outer, between the two superior orbitar fissures, and a large one beneath the inner can- 
thus, with a smaller one at its outer base. The tooth-like process of the basilar joint of 
the external antenne is strong, prominent, acute, and denticulate at its margin, like those 
of the border ofthe carapax. The claws are very robust, and strongly marked. The 
carpus has several more or less complete lines of strong spiny tubercles, which termi- 
nate in two strong spines on the upper and anterior margin ; the hand is furnished on 
its upper edge with two crests of similar tubercles, which are extended to the moveable 
finger ; on the outer surface of the hand are five longitudinal equidistant raised lines, 
which are more or less tuberculate or granulate. The remaining feet are almost covered 
with long dark-coloured hair. The abdomen of the male has the last joint somewhat 
produced. That of the female is very large and protuberant. 
Colour above rich reddish brown, somewhat mottled with yellowish, particularly in 
young specimens ; beneath red mottled with yellow. 
Length of the largest specimen which Mr. Cuming brought home 4 inches, breadth 52. 
This very handsome species was taken by Mr. Cuming at Valparaiso in deep water 
about rocks. I have also received a young specimen from Mr. Miller, who assigns to 
it a similar habitat. 
4. Cancer rrroratus, Say!. 
Tab. XLVI. 
Canc. testd leviter granulatd ; margine antico-laterali decem-lobato, lobis contiguis, quadra- 
tis, ad marginem denticulatis ; manibus compressis, dentato-bicristatis. 
Hab. ad oras Floridarum (Say) et Americ Australis (Cuming, Miller). 
Carapax transversely oblong, regularly elevated; the surface minutely granulated; the 
regions but slightly distinct. Latero-anterior margin slightly divided into ten lobes, the 
anterior ones smaller and contiguous, the posterior broader and slightly diverging ; the 
edges minutely denticulated, each having one or two teeth larger than the rest. Front 
tridentate, the teeth triangular ; orbits oval, with a small tooth over the inner canthus, 
but none between the superior fissures, as in some other species. External antenne 
with the basilar joint flat, its inner margin a little excavated, and its tooth obtuse. 
Pedipalps as in the other species. Sternum almost without hair, polished, numerously 
and minutely punctated. Abdomen very slightly fringed ; the terminal joint a little pro- 
duced, terminated by a few longish hairs. Anterior feet compressed, angular, the wrist 
with a sharp spine above, projecting over the base of the hand ; the hands compressed, 
somewhat inflexed, crested, the crest denticulated, the external surface with five longi- 
tudinal elevated granular lines. The remaining legs slender, very long, compressed, 
1 Journ. Acad, Ent. Sci. Phil., vol. i. p. 59. t.4. f. 2. 
