26 B. IV. Kimkel, 



Second gnathopods with epimeron rather higher than that of first 

 and more than twice as high as long, terminating acutely ven- 

 trally : second joint moderately stout ; third joint about as broad as 

 long; fourth joint about twice as long as broad with apex acutely 

 pointed and with long slender setae on distal portion of posterior 

 margin; wrist longer than hand and triangular with distal margin 

 transverse and with anterior margin produced slightl}- distally ; hand 

 simple, about as long as fourth joint, tapering slightly to distal end, 

 provided with row of short setae on posterior margin ; finger short 

 and stout with serrations and setae on concave margin. 



Epimeron of third pereiopod similar to that of second gnathopod ; 

 that of fourth much higher and longer, terminating ventrall}- in 

 acute angle and with posterior margin concave proximally to ac- 

 commodate succeeding epimeron, and with acute process ventral to 

 recess ; fifth epimeron longer than high with ventral margin bilobed ; 

 seventh epimeron smaller than sixth, both suboval in form. 



Sixth and seventh thoracic segments and first 3 abdominal seg- 

 ments more or less keeled and with posterior margin produced to 

 a sharp process in mid-dorsal line. First and second abdominal seg- 

 ments with lateral margins produced to form triangular lobes ; third 

 abdominal segment with posterior margins of lateral portions pro- 

 duced to form 2 stout, rather blunt projections. 



Uropods, 3 pairs, biramous, with rami styliform ; first pair extend- 

 ing slightly be3^ond second and third pairs which extend to same 

 distance ; peduncle of first pair longer than that of second and 

 provided with row of sharp spines on dorsal margin, rami equal 

 and as long as peduncle, each with terminal spine ; second pair 

 similar to first but without spines on peduncle ; third pair with outer 

 ramus shorter than inner, peduncle somewhat more than half as 

 long as inner ramus. 



Telson about twice as long as broad, with apex divided into 2 

 triangular lobes whose apices are rather widely separated from 

 each other. 



Length 7 mm. 



The species was represented by a single female collected b}- 

 J. M. Jones. 



Eusiroides crassi Stebbing, 1888. 



1888. Stebbing, Rep. Challenger, vol. 39, p. 977, pi. 90. 



Eyes moderately large, compound, reniform, pigmented. 



Antennae with calceoli on flagella ; first antennae moderatel}" 

 slender, peduncle very short with first joint slightly longer than broad 



