THE CRUSTACEA OF THE BERMUDA ISLANDS. 543 



The affinities of the new species are with A. mtrinsicus Spence 

 Bate from Bahia (Chal, Macr., p. 557. pi. III., fig. i), In both 

 the rostrum is broad and flat at the proximal end and the sharp 

 keel is separated from the eyes by a deep and wide sulcus, but in 

 the new species the broadening of the keel of the rostrum towards 

 its distal end is not so prominent, and the sharp spines on the inner 

 dorsal surface of the ocular lobes are wanting. The teeth on the 

 large chela of A. intrinsicus are wanting in the new species, and 

 also the meral spines of the third and fourth pereiopods. The 

 carpus of the second pair of pereiopods is five-jointed in the 

 new species, six-jointed (according to Spence Bate's figure and 

 description) in A. intrinsicus. 



Measurements of large 9 : total length, 45 mm. ; length of 

 carapace, 1 5 mm. ; of large chela, 2 1 mm. ; of small chela, 

 13 mm. 



52. Alpheus websteri Kingsley. 



Kingsley, Proc. Ac. Nat. Sci. Phil., p. 416, 1879. 



Five specimens, dredged in channel, 6 fathoms, '97. 



This is probably the same as A. forniosns Gibbes (Proc. A. A. 

 A. S. III. p. 196, 1850), though as I am in doubt about the 

 exact synonomy I retain provisionally the name above. 



The small black spines of the uropods noted by Kingsley 

 serve readily to identify this species. The triangular rostrum 

 with the lateral sulci clearly distinguish it from A. minor, and 

 place it in the same group with the new species. 



The specimens were at first marked by a white band along the 

 median dorsal surface and a wavy line on each side. 



Heilprin reports one specimen of A. forniosns Gibbes, obtained 

 by dredging. 



Distribution : Florida and West Indies. 



Pen^id-^. 



53. Sicyonia carinata (Olivier) (?). 



(Plate XVII., Fig. 6.) 



Palae7non carinatus Olivier, Encyclop., t. VIII., p. 66j , 18 1 1, 

 Sicyonia carinata Milne-Edwards, Ann. Sci. Nat., ser. I,, 

 XIX., p. 344, pi. IX., fig. 9, 1830. 



