CRUSTACKA — WIlITEr.KGGE. 



411 



median line of the Ijody. The lateral surfaces of the fourth 

 segment are covered with a series of small spinules ; the fifth, 

 sixth and seventh are laterally produced ; there are submediaii, 

 lateral and marginal spines present, but they differ from those of 

 the preceding segments in being short and conical ; the armature 

 of the pleon is somewhat similar, and the caudal sliield has a 

 pair of stout lateral spines which are situated iiearer to the Ijase 

 than the obtusely rounded extremity ; the surface carries six 

 spines arranged in twosubmedian rows of three each ; the lateral 

 margins bear six small denticles ; the subterminal portitjii of the 

 shield is tumid, and when viewed from above is seen to be 

 margined with about six small conical spines. 

 Eyes prominent ; colour blackish-brown. 



First antennae short, the basal joint 

 stout, about twice as long as broad, with a 

 distinct spinule on the inner distal angle ; 

 second joint slender, equal to the first in 

 length; third joint one-third as long as the 

 second, with the apex somewhat dilated ; 

 fourth joints and also the second antennae 

 wanting. 



Mandibles stout, strongly bent in the 

 middle ; the molar tubercle and spine-row 

 are well developed; cutting edge with three 

 or more denticles. 



The maxillipedes have 



large lanceolate epipods ; 



the first two joints of the 



palp are subequal and 



as bi'oad as long ; third 

 joint a little longer and broader than the 

 fourth; fifth joint as long as the narrow diameter 

 of the fourth. 



Third joint of the first pair of legs, with a 

 well marked spine, situated at the distal third 

 of the superior border; fourth and fifth joints 

 equal in length ; the inferior border of the 

 former and the superior border of the latter 

 are somewhat produced ; sixth joint lanceolate 

 in outline ; seventh curved, and about one-third 

 shorter than the sixth. 



In the second to the fourth pairs of legs the 

 second joints become progressively longer as the 

 end of the body is approached, whilst the sixth 

 joints are correspondingly shorter. The superior 

 border of the second joint is armed with six or more spines 



Third leg. 

 FiK. 116a. 



Fourth leg. 

 Fig. 116&. 



