232 



under antennae I and still longer solitary spine above the mouth cone; 

 moreover, small spines are present directly above the place of attachment 

 of antennae I and on the keels of the head, running from the base of 

 antennae I to the occiput. Eyes are absent. Antennae are strong and their 

 upper and lower edges are armed with long strong spines. 



The mouth cone does not project. The palp of maxillae I is armed on 

 the straightly truncated distal margin with sparse short setae. The lobes 

 of maxillae II terminate in a pair of spines on each. The maxillipeds 

 have oblong-oval outer lobes which are armed in the distal part of the 

 inner margin with apical, strong short setae; a pair each of such setae is 

 present on the surface of the lobes; the inner lobes reach half the length 

 of the outer, taper distally, and carry two apical setae. Coxal plates III-V 

 have prolonged and acute anterior angles, while on coxal plates V, in 

 addition the lower posterior angle is stretched into a long thin process 

 which is denticulate on the lower margin. 



The 4th segment of pereopods I is very short, roughly equal to the 

 3rd; the lower margin of the 5th segment is produced into a large lobe 

 with an acute distal angle; the shorter 6th segment has a slightly den- 

 ticulate posterior margin and its anterior distal angle is extended above 

 the claw into a short acute denticle; the claw is narrowly lanceolate and 

 more than 1/2 the length of the 6th segment. Pereopods II are simple; the 

 4th segment is not as short as in pereopods I; the 6th segment is slightly 

 longer than the 5th and roughly three times longer than the lanceolate 

 claw. The 5th and 6th segments and the claw of pereopods I and II have 

 lateral keels. Pereopods III and FV are very thin and long; the 5th and 6th 

 segments are roughly equal and the 4th segment is slightly shorter; the 

 claw is very small, curved, but not retractile. Pereopods V are somewhat 

 longer than the body; the thin, rod-shaped 2nd segment is roughly equal 

 to all the remaining segments together and is armed on both the anterior 

 and posterior margins with sparse long and slightly curved spines, the 

 anterior distal angle is stretched into a long and acute process, reach- 

 ing far beyond the distal margin of the 3rd segment; the 4th segment is 

 shorter than the 6th, which in turn is somewhat shorter than the 5th seg- 

 193 ment; the claw is very small but not retractile. Pereopods VI are slightly 

 shorter than pereopods V; the 2nd segment is equal in length to the 5th 

 and 6th together; the 6th segment is longer than the 5th. Pereopods VII 

 are roughly as long as pereopods VI, but the 2nd segment is longer and 

 the distal segments are shorter; the 6th segment is longer than the 5th. 

 The claws on pereopods VI and VII are small, curved, but not retractile. 



The uropods are long and thin, their basipodites are considerably 

 longer than the endopodites. The exopodites are greatly reduced to an 

 equal extent in uropods II and III; the basipodites of all the uropods are 

 armed with sparse long and slightly curved spines. In uropods II and III a 



