344 U.S. NATIONAL MUSEUM BULLETIN 23 6 



changing in curved, fine lamellae. Apical part of seta normally de- 

 veloped. Apex of endopodite reaching articulation between 2nd and 

 3rd exopodal segments. 



Coxa and basis of leg 3 (fig. 135c) as in leg 2; exopodite and endop- 

 odite 3-segmented, both modified. Exopodite with strongly swollen 

 segments, curved internally and, in my preparation, slightly malformed 

 by pressure of cover glass. Segment 1 without internal seta; external 

 margin spinulose, with strong terminal spine. 2nd segment half as 

 long, external margin as in 1st segment, apparently also without 

 internal seta, though presence of such a seta may have been obscured 

 by curved position of segment. Segment 3 slightly longer, with 3 

 strong spines at external margin, spine and fine seta at apex, and 2 

 short internal setae. 1st endopodal segment without setae; 2nd 

 externally produced into strong spine with bifid apex, overlapping 

 3rd segment and reaching middle of 3rd exopodal segment. Base of 

 spine with denticulate lamella. In addition, there is an internal seta. 

 3rd endopodal segment small, with 4 plumose setae. 



Leg 4 (fig. 135d) with basis and coxa as in legs 2 and 3; exopodite 

 3-segmented, endopodite 2-segmented. Exopodite curved, though 

 less strongly than in 3rd leg; 1st segment long, without internal seta 

 and with strong external spine. 2nd segment half length of 1st, with 

 fine internal seta and strong external spine. 3rd segment as long as 

 2nd, with 3 strong external spines, spine and seta at apex, and 2 

 internal setae. 1st endopodal segment without setae; 2nd with total 

 of 4 setae : 1 external, 1 apical, and 2 internal. 



Leg 5 (fig. 135e) with scarcely elevated baso-endopodite, bearing 

 1 seta. Exopodite ovate, small, with 5 plumose marginal setae, 

 external margin spinulose. External lobe well produced, with fine 

 seta. 



Leg 6 (armature of genital plates) composed of 2 setae, one of 

 which is spinulose (fig. 135/). 



Color faded, transparently whitish. No eye or pigmented spot 

 visible. 



Remarks. — This new species shov/s certain points of conformity 

 with the male of Paralaophonte karmensis (G. O. Sars) and probably 

 belongs in the "karmensis" group of Paralaophonte. The exact 

 place, in absence of the female, cannot accurately be ascertained 

 The species is different from P. karmensis by the strongly developed 

 hook on the 2nd antennular segment and the shape of legs 2 and 4. 

 P. karmensis is a rare species, which appears not to have been recorded 

 since Sars' original description of this species from Skudeneshavn at 

 the southern end of Karmoy in Norway. The male specimen of 

 P. pUosoma originated from crevices in the seaward reef margin at 

 Falarik in the Ifaluk Atoll. 



