CRUSTACEA FROM THE BAHAMAS 91 



inner. Lamellar portion does not reach end of peduncle. Third 

 maxillipedes do not reach beyond antennal peduncle. Relative 

 lengths of carpal joints of second pereiopods differ. 



Variations from var. edamensis : 



Finger of small hand shorter than palm (longer in edamensis). 

 A quadrangular rather than a triangular depression on side of large 

 hand. 



First joint of carpus of second pereiopod is equal in length to second 

 (shorter in edamensis). Third and fourth pereiopods less broad than 

 in edamensis. 



58. Alpheus Websteri Kingsley 



Kingsley, Proc. Acad. Nat. Sci. Phila., p. 416, 1879. 



(a) 3 specimens, one with ova. Along shore, near Nassau, N.P., 

 Feb. 20, 1890. 



(b) 2 specimens, one with ova. Nassau, N.P., Jan. 10, 1890. 



(c) 3 specimens, fragmentary. Nassau, N.P., Jan. 10, 1890. 

 Kingsley's type specimens were from Key West; it has been re- 

 ported by Herrick from Nassau, N.P. 



A. Websteri is very probably the same as A. formosus Gibbes 

 (Proc. Am. Ass. Ad. Sci., p. 196, 1850). The descriptions apparently 

 tally, though Gibbes makes no mention of the small black spine on the 

 uropod which is mentioned as a characteristic feature by Kingsley, 

 and which is very evident in my specimens. 



59. Alpheus nigro-spinatus n. sp. (PL xxx. Fig. 6) 



(a) 2 specimens. Under coral and in pools between tides. New 

 Providence. 



Carapace compressed. Rostrum short, acuminate, no longer than 

 spines of ocular hoods; extended backwards as a ridge between the 

 eyes, from each of which it is separated by a rounded depression. 

 Spines of ocular hoods short, acuminate. The front of carapace is 

 thus marked by three, nearly equal, small spines. Inner antennae: 

 basal segment of peduncle with small spine (stylocerite) ; second and 

 third segments, no spines but scattered hairs ; second segment a little 

 more than twice as long as the terminal ; outer flagellum stouter and 

 shorter than the inner. Outer antennae: outer angle of the basal 

 joint of peduncle with a sharp short spine; scaphocerite broad at 



