Two new Amphipodsfrum the West Indies. .'JD1> 



Pleopods. — Couj)ling-spiiies two ; cleft spines six ; joints 

 of rami from seventeen to nineteen in number ; the outer 

 ramus sli<;litly shorter than the inner and a little curved. 



Uropods. — 1'he proportions and armature are sufficiently 

 shown in the figures. 



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

 tiie length. There is a small aj)ically rounded triangular 

 piece produced beyond the two lateral apices, which appear to 

 be constituted each by a small upturned hook. Within tiiese 

 points are backward-projecting seta", and considerably above 

 them are planted other setffi which diverge laterally. 



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

 the end of the person was three tentiis 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 ray friend 

 Mr. W. 11. Forrest. 



Deutella, Mayer, 1890. 



In the Supplement to liis ' Monograph on the Caprellidae ' 

 Dr. Mayer defines iliis genus as follows : — 



" Mandibular-palp three-jointed. Fhigellum of the antennse 

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

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

 a considerable distance from the branchiae. On the abdomerv 

 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 

 setae. Assigned to the germs are the species Deutella adi- 

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

 the tabular view of the twenty- three genera of Caprellidae 

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

 Supplement a difficulty arises in regard to JJeutella. 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 

 diagnosis. Moreover, the characters ascribed in tiie table to 

 Pseudo]>rotella are practically the same as those given to 

 Deutella^ tiie only difTcrences being that in Pneudoprotella the 

 number uf setae on the terminal joint of the mandibular palp 



