CRUSl'ACICA— \VIII'rELKOf;K. ' 279 



CepliaJon wider than loiij^', with the aiitennary stoniuin pro- 

 duced into a loiiy- project iiii;- spatulatn plate. 



Epiinera of tlie jjeraeoii and pleon j^reatly produced, with 

 obliciuely truncated borders. The anterior margins of the epimera 

 of the first segment are adapted to posterior borders of the 

 expanded sides of tlie cephalon. Terminal segment of the pleon 

 with a round entire border. 



Eyes dorsal, posteriorly imbedded in the first peraeon segment. 



First and second joints of tlie first antennae foliate ; third joint 

 small, cylindrical, terminating in a minute flagellum. 



Second antennte reaching to the external angle of tlie first 

 peraeon segment ; first and second joints short ; third, fourth, 

 and fifth compressed, but not dilated. Flagellum much shorter 

 than the peduncle. 



Mandible straight, with the cutting edge dentate ; molar 

 tubercle well defined ; palp strongly develoiDed, and three-jointed. 

 First maxillaj subequal in width ; outer lobe tipped with spines, 

 some of which bear minute spinules ; inner lobe furnished with 

 four stout branched setse. Second maxillae with the lobes short, 

 broad, and subequal ; inner lobe with numerous pectinated spines, 

 and the outer pair clothed apically with simple setae. 



Maxillipedes well developed. Palp with Iow% superior setife- 

 rous lobes. First pair of legs weak, the second and succeeding 

 pairs graduali}^ becoming more robust to the seventh. 



Pleopods foliate ; the inner rami of the fourth and fifth pairs 

 are without internal pleated folds, and the outer i^ami are desti- 

 tute of sutural lines. 



Uropods lamellate, second joint small, received into an excava- 

 tion between the flattened lobes of the first. 



CHITONOPSIS SPATULIFRONS, sp. nov. 



(Figs. 38a-^.) 



Stations 34, 44, 53. 



Body depressed ; about two-fifths longer than broad. The 

 frontal process, basal joints of the first antennae, side plates and 



p 



