Decapod Crustacea of Bermuda, Part II. 149 



darker spots, which form a row on the posterior margin of each 

 abdominal segment; two larger median spots and two larger 

 lateral spots on the caudal fin, which is tipped with orange-brown. 

 Each segment is also crossed by a narrow brown band. On the 

 carapace are three oblique orange-brown lateral lines, and a pair 

 of dorsal lines running back from the base of the rostrum. The 

 color so nicely matched that of the whitish shell-sand bottom of 

 the tidal pools in which they were found, that it was difficult to see 

 this shrimp when still." Long Bird Island flats, at low tide, 

 April 29th, 1901. It swims in large schools, often near the 

 surface. 



Numerous Bermuda specimens of this species, from several 

 different collections, are in the Yale Museum. It was common in 

 shallow water, in April and May, 1898, and 1901. Some of the 

 females carried eggs at that time (Yale Exp.). It is common 

 in the West Indies and Florida. Key West (Kingsley). Gulf of 

 Mexico, 26 and 33^2 fathoms ; off Yucatan, 24 fathoms ; Old 

 Providence ; St. Thomas, W. I. ; Jamaica ; and Porto Rico, 6 to 

 23 fathoms (Rathbun). 



This species has been referred to the Pontonidse by several 

 authors, but I can see no reason for separating it from the 

 Palaemonidse. 



Palaemonella Dana. 



Palamonella Dana, U. S. Expl. Exped., p. 582, 1852; Bate, Voy. 

 of the Challenger, xxiv, p. 786, 1888. 



This genus is very near Palccinon. It has a tooth on the front 

 edge of the carapace and another behind it, at nearly the same 

 level, on the hepatic region, as in Palamon. The rostrum is thin 

 and slender, serrate above and below, and the carpal joint of the 

 second pair of legs is much shorter than in the latter, and has a 

 distal spine. The mandible has a two- jointed palpus. 



Palasmonella tenuipes Dana (?). 



? Palamonella tenuipes Dana, U. S. Expl. Exped., p. 582, 1852 ; Atlas, pi. 

 xxxviii, fig. 3-3d, 1855. ? Stone, in Heilprin, The Bermuda Is., p. 151, 

 1889. ? Rankin, Ann. N. Y. Acad., xii, p. 538, 1900. (Bermuda, no 

 description.) 



PLATE XLIII, FIGURES 2, a-e, after Dana. 



