306 A. E. Verrill — Decapod Crustacea of Bermuda. 



Stinipson did not notice the alternation of smaller and larger mar- 

 ginal teeth, but that condition was described by Miss Rathbnn. 

 Notwithstanding these and other differences I do not doubt the 

 identity of the Bermuda example. 



The only Bermuda specimen known to me was taken Sept. 30, 

 1905, at Long Bird Island (probably in a fish seine), by the expedi- 

 tion from the Field Natural History ^Museum. 



Stimpson's types were from off the Florida Keefs in 37 to 40 

 fathoms (Pourtal6s coll.). Porto IJico, four stations (Rathbun). 

 Bahia, Brazil (Miers). 



Donhtfal Species. 



According to M. Walter Faxon there is in the Museum of Com- 

 parative Zoology, Cambridge, Mass., a specimen of Cancer borealis 

 Stimpson, labelled as from Bermuda. 



My belief is that its label is erroneous, or has been accidentally 

 transposed. It is a large northern species, common at low tide on 

 some of the rocky shores of Casco Bay, Me., and ranging southward 

 in the deeper water of the arctic current as far as off Cape Hatteras. 



Boscia ?, sp. 



Willem.-Suhm states that he collected a species in Bermuda 

 "allied to Boscia.'''' No such species was mentioned in the final 

 report by Miers. To what he refers is problematical. lioscia is a 

 fresh-water genus [^^ Pseudothelphusa). See Bibliography, below. 



Libinia emarginata Leach = L. canaliculata. 



This species is recorded by Hurdis (Rough Notes, p. 361), without 

 any notes. It has not been found by anyone else. Probably his 

 identification was erroneous. It is common from Cape Cod to 

 Florida. 



Figure 37. — Deformed claw of an niuletenuined cancroid crab, from the collec- 

 tion of J. M. Jones, biit without a special label. Supposed to be from 

 Bermuda, x If. 



