CANCER AMPULLA. 255 



SPECIES II. 



CANCER PUSILLUS. 



The thorax or chest of this species is very round and entire ; 

 there is a tooth or projection on the tarsi or eyelids. It is 

 greatly allied to the minutus, and is an inhabitant of the 

 Northern Seas ; it is extremely small, being- not more than 

 one-fourth the size of the minutus ; it is also depressed and 

 of a pale colour.. 



SPECIES III. 



CANCER AMPULLA, 



OR 



THE BOTTLED-SHAPED CRAB. 



This species possesses a head devoid of fangs, having four- 

 teen legs. The late Earl of Mulgrave (then Captain 

 Phipps) discovered one of these in the stomach of a seal, 

 near the coast of Spitzbergen.* Captain Scoresby, Jun., 

 found one in the stomach of a shark,+ and, on opening the 

 stomach of a female narwhale killed by our seamen in 1824, 

 I likewise discovered one of these creatures. 



* Voyage to the North Pole, 1774, p. 190. 

 t Scoresby's Arctic Regions, vol. i. p. 542. 



