388 U.S. NATIONAL MUSEUM BULLETIN 236 



segment, forming curved, powerful, obtusely pointed claw. Near 

 line of fusion strong seta, % length of claw, with the result that 

 endopodite appears to have 2 appendages: curved claw and seta. 



Leg 2 to 4 with 3-segmented exopodites and endopodites. The 

 details can be taken from figures 151a-c; the setal formula is: 



endopodite exopodite 



leg 2 1.1.121 0.1.223 



leg 3 1.2.221 0.1.223 



leg 4 1.1.221 0.1.323 



All external marginal spines on exopodites lanceolate; external 

 borders of exopodites strongly spinulose ; external borders of endopodites 

 haired. 



Leg 2 (fig. 151a). 2nd endopodal segment, in addition to seta, 

 with strong hair at internal margin, which easily may pass as small 

 seta. 



Leg 3 (fig. 1516). 3 setae of 3rd endopodal segment spatulate. 



Leg 4 (fig. 151c). 3 internal setae on 3rd exopodal segment on 

 left side and 2 on right. One may have been removed during prepa- 

 ration but I failed to find the insertion. Median as well as apical 

 seta along that margin spatulate ; 1 of setae on 3rd endopodal segment 

 also spatulate. Internal seta of 1st endopodal segment remarkably 

 strong. 



Leg 5. Exopodite ovate, twice as long as broad, with 6 setae; 

 external margin spinulose, internal margin haired. Baso-endopodite 

 small and short, ji length of exopodite, with 5 setae, position of which 

 can be judged from figure 151c?. 



Color completely faded, transparently yellowish. Female carries 

 single, heavily encased egg, attached to genital aperture with short 

 pedicel. 



Remarks. — The reasons for the inclusion of this specimen in a new 

 genus have been given on pages 383, 384. Only a single female specimen 

 was obtained from crevices at the seaward reef margin of Falarik in the 

 Ifaluk Atoll. Its curious structure probably points in the direction 

 of a strong speciahzation. 



