
MR. T. BELL ON THE GENUS CANCER. 339 
Carapax elevated, particularly at the gastric region; the surface almost uniformly 
granulated. The latero-anterior margin is divided into ten lobes, the sides of which are 
contiguous, and their margins deeply dentate, two of the teeth of each being larger than 
the others ; the lobes become broader and shallower posteriorly, and the last is obso- 
lete, passing into the granulated posterior ridge. The front has three teeth, the middle 
one being small, and in the old specimen from which this description is principally 
taken it is wholly lost. A strong tooth projects over the inner canthus of the orbit, and 
there is a smaller one beneath, immediately exterior to the basilar joint of the external 
antenne, the strong process of which is rather obtuse and simple. The anterior pair of 
legs are very large and strong: they are not tuberculated as in Canc. dentatus, nor spiny 
as in Cane. irroratus; but there are slight indications of a double tuberculate carina 
on the upper edge of the hand, particularly in young individuals, and on its outer sur- 
face are five obsolete longitudinal lines. The four posterior pairs of feet are strong, 
nearly smooth, and terminated by strong, sharp, horny claws. There is no hair on any 
part of the body or legs in the specimens which I have seen, The last joint of the 
abdomen in the male is produced anteriorly ; the fourth nearly quadrate, rather longer 
than broad. 
Colour above reddish brown ; beneath yellow mottled with reddish. 
Length 53 inches, breadth 7+. 
The adult specimen was taken by Mr. Cuming at the depth of twenty-five fathoms, 
on rocky ground ; the younger specimens were caught by seines on sandy beaches. 
I have dedicated this magnificent species of a genus the characters of which were 
first fully developed by him, to Dr. Milne Edwards, the author of incomparably the 
most complete work on Carcinology that has ever appeared. 
3. CANCER DENTATUS. 
Tab. XLV. 
Canc. testd granulato-scabré, hispidd ; margine antico-laterali decem-dentato, dentibus lan- 
ceolatis, denticulatis ; manibus tuberculoso-bicristatis, ext&s lineis quinque longitudi- 
nalibus granulatis ; pedibus pilosissimis. 
Hab. apud Valparaiso. (Cuming, Miller.) 
3 Mus. Soc. Zool. ¢ ¢ Mus. Bell. 
Carapax considerably elevated, and the regions rather strongly marked ; the surface 
roughly granulated, hispid, with patches of small spiny tubercles, particularly towards 
the anterior part. The latero-anterior margin, instead of being but slightly divided into 
obsolete lobes, as in most of the other species, is deeply cut into sharp lanceolate teeth, 
the edges of which are furnished with numerous sharp denticulations. The posterior 
tooth, which reaches to the anterior part of the cardiac region, is smaller than the rest, 
and its posterior granulated margin passes off into the post-branchial ridge. The front 
