I'l.ATE XXI. A. 



ix /)//'//*, n. sp. 



1. mancl. vt. mand. Left and right mandibles. 



mxp. <? , mxp. ? . Maxillipeds of male and female respectively. 



pip. 1 i . First pleopod of male. 



pip. 1 ?. First pleopod (operculum) of female. 



pip. 2 j . Second pleopod of male. 



pip. 3, pip. 4. Third and fourth pleopods. 



tels. -f urop. Telson with one of the uropods. 



PLATE XXI. B. 

 Munnopsurus iitiiitux, n. sp. 



ant. 1 ? . llight first antenna of female viewed from above. 



ant. 2. First four joints of peduncle of left second antenna, viewed from below. 



ep. -j- l.s. Epistome with upper lip. 



l.i. Lower lip. 



1 inand. Left mandible with brush on molar and terminal portion of palp lurtlar 

 enlarged. 



mx. 1. First maxilla. 



mx. 2. Second maxilla with setae from outer and inner plates further enlarged. 



pen. Male stylet on 7th peraeon segment. 



pip. 1 + 2 3 . First and second pleopods of male, with apex of first pleopod further 

 enlarged. 



pip. 3. Third pleopod. 



