348 



dorsally, apical seta exceeding half the length of the body, and distinctly jointed 

 at the base. Anterior antennae not nearly attaining the length of the cephalic 

 segment, and gradually tapering, 1st joint much the largest and subdivided 

 in the middle, terminal part shorter than the proximal one, and having its 4 

 joints nearly equal in size. Posterior antenna) with the distal joint much shorter 

 than the proximal one, and armed with 4 claw-like spines and 3 slender geni- 

 culated setse, outer ramus extremely small and attached close to the end of the 

 proximal joint, carrying on the tip 3 minute bristles. Posterior maxillipeds with 

 the hand oval in form, outer edge much curved, inner straight, dactylus strong 

 and curved. 1st pair of legs with the 2 basal joints of about equal size, outer 

 ramus scarcely more than half as long as the inner, middle joint much the largest 

 and, like the 1st, armed outside with a short spine; inner ramus not attaining 

 the length of the basal part, the outer 2 joints quite short, apical claws of both 

 rami of same appearance, the inner one much larger than the outer. Natatory 

 legs with the 1st joint of the outer ramus the largest, and without any seta in- 

 side, spines of outer edge of this and the 2 succeeding joints smooth. Inner 

 ramus of 2nd pair of legs about the length of the 1st joint of the outer, and 

 distinctly biarticulate, carrying on the tip 3 somewhat unequal setse; that of the 

 2 succeeding pairs shorter and uniarticulate, with 2 slender setse on the tip. 

 Last pair of legs forming each a rather small plate divided at the end by a 

 narrow incision into 2 setiferous lobes, the outer of which, answering to the 

 distal joint, is rounded in shape and provided with 3 slender curved setse, inner 

 lobe a little more prominent and edged with 5 setse, the 2 innermost of which 

 are shorter than the others and spiniform. Ovisacs oval in form and only slightly 

 divergent, each containing rather a large number of ova. 



Male somewhat smaller than female, and of still more slender shape, the 

 urosome being much narrower and, as usual, composed of 5 well-defined segments. 

 Anterior antennse comparatively larger, almost attaining the length of the cephalic 

 segment, terminal part consisting of only 3 joints, the middle one somewhat 

 tumefied and movably articulated to the 1st. Posterior maxillipeds somewhat 

 more strongly built than in female. 2nd pair of legs with the setse of the inner 

 ramus shortened and spiniform. The 2 succeeding pairs with the spines outside 

 the last 2 joints of the outer ramus coarsely denticulated. Last pair of legs 

 very small, with the inner lobe less developed than in female and provided with 

 only 2 unequal setse. Genital lobes closely juxtaposed, each with a single spini- 

 form seta. 



Colour yellowish. 



Length of adult female 2.40 mm, 



