Two neiv Amphipods from the West Indies, 399 



Pleopods. — Coupling-spines two ; cleft spines six ; joints 

 of rami from seventeen to nineteen in number ; the outer 

 ramus slightly shorter than the inner and a little curved. 



Uropods. — The proportions and armature are sufficiently 

 shown in the tigures. 



Telso7i. — The breadth at the base is slightly longer than 

 the length. There is a small apically rounded triangular 

 piece produced beyond the two lateral apices, which appear to 

 be constituted each by a small upturned hook. Within these 

 points are backward-projecting seta?, and considerably above 

 them are planted other setas which diverge laterally. 



The length of the specimen from the front of the head to 

 the end of the perseon was three tenths of an inch, and the 

 length of the pleon two tenths. Allowing for the overlapping 

 of the segments, the animal when distended would probably 

 have measured considerably less than five tenths of an inch 

 from the head to the telson. 



The specific name, meaning " with a large first foot," refers 

 to the superiority in size of the first over the second 

 gnathopods. 



The specimen was obtained from seaweed on rocks at 

 Antigua, and forwarded to me by the kindness of my friend 

 Mr. W. E. Forrest. 



Deutella, Mayer, 1890. 



In the Supplement to his ' Monograph on the Caprellida3 ' 

 Dr. Mayer defines this genus as follows : — 



" Mandibular-palp three-jointed. Flagellum of the antennae 

 two-jointed. Kudiments of legs on tlie third and fourth 

 segments, in the female those on the fourth segment being at 

 a considerable distance from the branchiee. Oti the abdomen 

 of the male one pair of one-jointed leg-stumps." 



In the following paragraph he mentions that the rudi- 

 mentary legs are two-jointed and provided with numerous 

 setge. Assigned to the genus are the species Deutella cali- 

 fornica^ Deutella venenosa, and a third as yet unnamed. In 

 the tabular view of the twenty-three genera of Caprellidse 

 wdiich Dr. Mayer gives on page 8 of his exceedingly valuable 

 Supplement a difficulty arises in regard to Deutella. For 

 there the abdomen of the male is stated to have two pairs of 

 leg-stumps, instead of only one pair as in the subsequent 

 diagDOsis. Moreover, the characters ascribed iu the table to 

 Pseudoprotella are practically the same as those given to 

 Deutella^ the only differences being that in Pseudoprotella the 

 number uf setaj on the terminal joint of the mandibular palp 



