The Aniphipoda of Bermnda. 69 



and with posterior margin produced to form prominent semicircular 

 lobe which is provided with row of stout, pectinate spines ; hand 

 suboval, slightly longer than wrist, posterior margin with single 

 stout toothlike spine situated submarginally ; palm rather oblique and 

 slightly convex, provided with a regular row of submarginal setae 

 and a very large prehensile spine; finger of usual form, moderately 

 stout. 



Second gnathopods with rounded epimeron, about as high as long ; 

 second joint rather short with anterior margin prolonged distally to 

 form triangular process ; third joint short ; fourth joint quadrilateral, 

 posterior margin much longer than anterior, distal margin rather 

 longer than proximal ; wrist articulating with anterior margin of 

 fourth and having form of equilateral triangle ; hand oval, with base 

 incised to form 2 equal lobes, the anterior one of which forms articu- 

 lation with wrist, about twice as long as wide, palm rather longer 

 than posterior margin which is separated from it by several pre- 

 hensile spines and distinct prehensile angle, provided with double 

 row of rather stout submarginal setae ; finger rather long and curved 

 in usual way. 



Fourth epimeron much higher than fifth which is suboval. Fifth 

 and sixth pereiopods with sixth joint having spine and setae on 

 posterior margin. 



Uropods essentially . as in H. pontica ; telson semicircular, broader 

 than long and divided by deep incision nearly to base. 



Length 7—9 mm. 



The species, which is apparently one of the commonest species 

 in Bermuda, occurs very abundantly among the fronds of Ulva in 

 the Mediterranean and is reported from the east coast of North 

 America, Rio Janeiro, and Valparaizo, Peru. 



Some of the specimens were collected on Somerset Island by 

 W. M. Rankin in 1898, there were some also collected from dead 

 coral from Castle Harbor. 



Hyale pontica Rathke, 1837. 



1837. Rathke, Mem. Acad. Imper. des Sci. de St. Petersbourg, 



vol. 3, p. 378, pi. 5, fig. 20-28. 



Eyes large, compound, subtriangular, ocelli small and arranged 

 close together. 



First antennae about '/s as long as body, extending as far as 

 middle of second antennae; peduncle short, more than '/s length 

 of entire appendage ; first joint fairly stout, abovit twice as long as 

 wide with a few setae around distal margin; second joint more 



