331 



shorter than the preceding one, and having the anal opercle smooth. Caudal rami 

 very short, being scarcely half as long as they are broad, outer corner armed 

 with a short spine, the 2 middle apical setse very slender and coarsely ciliated 

 in the middle, the inner one fully twice as long as the urosome. Eye wholly 

 absent. Anterior antennae scarcely attaining half the length of the cephalic segment, 

 and only slightly tapering distally, 2nd joint the largest, terminal part biarticulate 

 and very short, blunt at the tip. Posterior antennae rather short and stout, with 

 a strong seta issuing from the proximal joint in front; outer ramus very fully 

 developed, and attached near the end of the proximal joint, extending considerably 

 beyond the distal joint, and provided with 6 plumose setse, 2 apical and 4 lateral. 

 Basal part of mandibular palp forming a rather large expansion inside, carrying 

 4 densely plumose seta3. Maxillae with the epipodal lobe comparatively large, 

 lamelliform, and edged with 4 setse. Anterior maxillipeds having the basal part 

 unusually broad, but with the digitiform lobes small and wide apart. Posterior 

 maxillipeds of moderate size, hand oval in form and densely spinulose inside, 

 dactylus shorter than the hand. 1st pair of legs with the inner ramus almost 

 twice as long as the outer, 1st joint considerably dilated, and carrying inside a 

 comparatively short plumose seta, 2nd joint somewhat obliquely truncated at the 

 end, and provided inside with a strong spiniform seta, terminal joint somewhat 

 longer than the preceding one, with 2 unequal spiniform setse on the tip, arid 

 another inside; all the joints clothed outside with slender spinules. The 3 

 succeeding pairs resembling in structure those in Tachidius, but more coarsely 

 spinulose. Last pair of legs, however, very different, distal joint well defined but 

 rather small, obliquely truncated at the tip, and fringed with 4 comparatively 

 short setae, proximal joint provided outside with the usual digitiform process, 

 innermost part of the joint forming a narrow linguiform expansion carrying on 

 the tip a slender bristle accompanied by 2 or 3 small spines. Ovisac very small, 

 only containing 2 juxtaposed ova. 



Male with the anterior antennae, as usual, hinged, but not nearly so 

 strongly built as in Taclildius, the 4th joint being of much smaller size. Inner 

 ramus of 2nd pair of legs with the terminal joint more tapered than in female, 

 and carrying on the tip 2 unequal spines, spine of outer edge wanting; inner 

 ramus of 3rd pair of legs having the outer corner of the middle joint produced 

 to a short, somewhat hamiform process. Last pair of legs of a similar structure 

 to that in female, but of smaller size. 



Colour whitish grey. 



Length of adult female 0.<)7 mm. 



