102 



The abdomen is composed of four segments. The combined length of the abdomen and 

 furca is contained three and two-third times in the total length of the ceplialothorax, from 

 the frontal margin to the base of the genital segment. When viewed from above, the genital 

 segment appears asymmetrical in outline. The right side is more infiated than the left. The 

 ventral surface is produced posteriorly into a small blunt lobe. The genital segment is as long 

 as the combined length of the next three segments and furca. The second and third segments 

 are of about equal length. The fourth segment is slightly shorter than the third segment. The 

 furcal joints are about as long as broad, and are slightly longer than the anal segment. The 

 middle seta of the left furcal joint is much longer than any of the others. The posterior margin 

 of the first, second and third segments is fringed with fine spines. 



The antennules are composed of tvventy-three joints and extend to the end of the 

 genital segment. 



The exopodite of the antennae is one and a half times the length of the endopodite. 



The mandibles, maxillae and maxillipedes are similar to those of Scolecithricella. The 

 apex of the first maxilliped is furnished with two types of sensory organs. Some are moderately 

 long and rounded at the apex. Others are short with distinctly swollen heads. 



The exopodites and endopodites of the four pairs of swimming feet are similar in 

 structure to those of Scolecithricella, but the spines on the surface of the second, third and 

 fourth pairs of feet are fewer in number and stronger. 



The fifth pair is symmetrical and very small. Each foot consists of a single cylindrical 

 joint attached to a basal part. The apex of the joint bears two short spines. The inner apical 

 spine is longer than the outer one. 



Male — length 3,4 mm. 



In general appearance it resembles the female, but the last thoracic segment is sym- 

 metrical, and is furnished with small spines. The abdomen is composed of five joints. The anal 

 segment is very small and is almost Obsolete. The posterior margin of the second, third and 

 fourth segments is fringed with fine spines. The filaments of the rostrum are longer than in the 

 female, and the bifid basal part is furnished with one small spine on the inner angle of each lobe. 



The antennules are composed of twenty joints. The proximal half of the antennule is 

 furnished with numerous sensory organs. 



The antennae, mandibles, maxillae and maxillipedes are similar to those of the female. 

 Some of the sensory organs on the apex of the first maxilliped appear to be hollow tubes 

 when seen in end view. 



The four pairs of swimming feet are similar to those of the female, but the surface of 

 the joints is less spinulose. 



The fifth pair is large and prehensile. The second joint of the basiopodite of the right 

 foot is dilated at its proximal part, where it bears a long sinuous one-jointed endopodite, wh'ich 

 extends to the end of the exopodite. The exopodite is two-jointed. The base of the first joint 

 is produced internally into a strong curved claw, which exceeds the length of the joint. The 

 middle of the inner margin of the joint is produced into a short stout tooth. The second joint 

 is forked at the apex. The joints of the basiopodite of the left foot are long and narrow. The 



