CRUSTACEA — WHITELEGGE. 



239 



Cephalon stron^jly defloxed 

 Frontal margin bisinuate, 



to its length, the ratio bein^j G'7 : 11. 

 in front, three times as broad as long, 

 with a short median rostriform 

 process, apically rounded, and a 

 little longer than broad. First 

 peraeon segment equal in length to 

 the cephalon and basal antennal 

 joints combined. Second and third 

 a little more than half the length 

 of the first; the fourth, fifth, sixth 

 and seventh gradually decreasing 

 in length ; the fourth is half and 

 the seventh one- sixth the length of 

 the first. Epimeral processes of the 

 first three segments directed slightly 

 backwards with thickened margins, 

 oblique sides and somewhat obtuse 

 extremities. Epimera of the fourth 

 segment gradually narrowing to a 

 subacute point; the posterior border 

 is straight, the anterior oblique ; the 

 epimera of the three remaining seg- 

 ments are broader distally and less 

 inclined backwards than the three 

 preceding, and the extremities are 

 more obtusely rounded. First pleon segment a little shorter than 

 the fourth segment of the peraeon, lateral margins broad and 

 evenly rounded ; the lines of the coalesced segments are very 

 faintly indicated. Telson nearly twice as broad as long, upper 

 surface strongly convex and smooth, the distal border wide and 

 evenly rounded . 

 Inferiorly the 

 sides are folded 

 and longitudin- 

 ally ridged. 



Eyes oval, 

 very dark 

 brown in colour. 



Superior an- 

 tennae having 

 their inner 

 bases separated 

 above by the 

 frontal process 

 and below by 



the apex of the epistomial plate, basal joint equal in length to 

 the two following combined. Flagellum with ten articulations, 



BODT VIEWED FROM ABOVE. 



Fig. •22a. 



Frontal Reoion and Antenna. 

 Fig. 226. 



