kto.1654. IMPHIPODA FROM WE87 VORTH YMERICA HOLMES. |.>;, 



timate joint of palp. First gnathopod with subchelate band; second 

 gnathopods with well-developed subchelate hand, having the anger 

 articulating al the anteroinferior angle, (iill- simple. (Jropods 

 with narrow rami. Telson deeply cleft 



/ >//" of the genus— V. dcntatus, new species. 



This genus is remarkable among the LysianassicUe in having the 

 cutting edge of the mandible dentate The first antennae are more 

 like the usual type, the first joint of the peduncle being only moder 

 ately enlarged, and the second and third being longer than in most 

 other members of this family. The hand of the -frond gnathopods 

 approaches the typical form, although possessing lysianassid features. 

 The genus is apparently a primitive and transitional one. 



VALETTIOPSIS DENTATUS, new species. 



Eyes absent. Lateral lobes of head narrowly rounded. First an- 

 tenna' about half the length of the body, the peduncle with the first 



B*1Q. '',. — VALBTTIOPSIH DENTATUS. '/"i. 1'IUST QNATHCH : </",. SBCOHD QNATHOFOD. 



joint about twice as long as thick and a little larger than the next two; 

 secondary ttagellum four jointed and extending beyond the elongate 

 first joint of the primary one. Second antennae about the length of 

 the first, the last joint of the peduncle a little longer than the preced- 

 ing one. Mandibles with both primary and secondary cutting edge 

 dentate: molar tubercle broad with it- face roughened; last joint of 

 palp half length of preceding. Outer plate ,,f first maxilla with ten 



