382 PROCEEDIXGS OF TKS NATIONAL MUSEUM vol.90 



fifth pjiir much modified. Basipod of the first pair armed on the 

 outer side with a proximal transverse row of 11 minute setae, a 

 central row of nine larger though similar setae, and at the base of 

 the exopod a large pectinate seta and a row of much smaller ones; 

 at the base of the endopod similar setae. Exopod (fig. 18, k) of 

 three similar podomeres, each armed wdth a stout pectinate seta at 

 the outer distal angle and more proximally on the outer side with 

 a roAv of four shorter setae; at the distal bordei-s of the first two 

 podomeres a row of four or five dentiform setae ; on the central inner 

 edge of the second podomere two very small setae and distally a 

 larger plumose seta ; terminally on the third podomere a row of four 

 setae, the inner two longer than the whole exopod and pectinate 

 centrally, the outer two about half as long or less and pectinate over 

 nearly the whole length. Endopod nearly twice the length of the 

 exopod, with two podomeres, the proximal one a little more than four 

 times the length of the distal one and armed on the inner side with 

 a central row of six setae, distal to which a single much longer 

 plumose seta, armed on the outer side with a central row of six 

 setae and two minute setae at the outer distal angle ; distal podomere 

 with a ]'0w of seven minute setae on the inner side and a row of 

 three larger setae terminally, the middle one being twice the length of 

 the other two and pectinate centrally, the inner one plumose, the 

 outer one pectinate throughout. 



Basipod of the second pair of legs with only the distal rows of 

 setae at the bases of the exopod and endopod. Exopod (fig. :(.8, i) a 

 little longer than the endopod, both with three similar podomeres. 

 Exopod with stout pectinate seta at the outer distal angles of the 

 podomeres, proximal to which there is a row of four minute setae, 

 with five or six additional very small setae along the distal border 

 of the fi.rst tAvo podomeres ; second podomere having on the inner side 

 two small setae, distal to which a much longer plumose seta; third 

 podomere with five terminal setae, the inner three about twice as 

 long as the exopod and plumose, except the outer one of the group, 

 which is plumose on the inner aide and pectinate on the outer side; 

 the outer two pectinate setae only one-third or less the length of the 

 inner ones. Endopod with four to six small setae on the outer sides 

 and a longer plumose seta at the distal inner angles of the three 

 podomeres ; on the third podomere three terminal setae, the outer one 

 short, stout and pectinate, the inner two a little more than twice the 

 length of the endopod and plumose. 



Third basipod like the second ; both rami of the third pair of legs 

 with three similar podomeres; exopod like that of the second pair 

 of legs, except that it is longer than the endopod and the minute 

 setae on the inner side of the second podomere are absent ; endopod 



