CRUSTACEA COLLECTED IN PUGET SOUND, N.A. 269 



land, in lat. 68° 8' N., long. 58° 47' W. (Hansen) to the 

 Azores (Barrois). Melita dentata, on the other hand, 

 appears to be a strictly northern species, having been 

 recorded from Spitzbergen (Goes), Greenland (Hansen), 

 Grand Man an (Stimpson), Labrador (Packard), and as far 

 south as Denmark (Meinert), the coast of Northumber- 

 land (Norman), and Halifax, Nova Scotia (S. J. Smith). 

 It has not been recorded from the West Coasts of the 

 British Isles. Ischyrocerusminutus [=I.isopus (Walker)] 

 again, which has sometimes been confounded with the 

 nearly allied I. anguipes, Kroyer, has been recorded from 

 Baffin's Bay, lat. 72° 8' N. (Ohlin), and is abundant on 

 the coast of North Wales. I have also a specimen from 

 Valentia, West Coast of Ireland. On the other hand, 

 Podoceropsis excavata (Sp. Bate), which is fairly common 

 in Liverpool Bay, and occurs on the French and Norwegian 

 coasts, does not appear to have been recorded on the last 

 named further north than lat. 64° (Sars). Negative 

 evidence, however, in a class of marine animals that has 

 been so little studied, is almost worthless. 



Besides the species in the collection that are absolutely 

 identical with British species, the resemblance between 

 others is very remarkable. Thus, Eupagurus kennerlyi 

 only differs from E. cuanensis in being larger and having 

 the sixth joint of the walking legs relatively shorter. 

 Crangon affinis only differs from G. vulgaris in being 

 slightly shorter and wider, and closely resembles C. 

 allmani in the carinae of the sixth abdominal segment. 

 Similar slight differences separate the other species in 

 the annexed list from their representatives in the British 

 Seas. 



The type specimens are in the Museum of Zoology at 

 University College, Liverpool, 



