608 



rounded. Eyes small, rounded, with dark pigment. Antennae comparatively 

 short and stout, both pairs being densely setiferous posteriorly; the superior 

 ones scarcely exceeding in length V* of the body, 1st joint of the peduncle 

 about the length of the other 2 combined, and very much expanded, suboper- 

 cular, projecting at the outer corner to a broad, triangular lobe; last joint 

 about same length as the 2nd, but narrower, flagellum scarcely exceeding in 

 length the last peduncular joint, and composed of only 2 articulations, the 

 last one being extremely small. Inferior antennae not quite as long as the 

 superior, and somewhat more slender, but with the flagellum of same structure 

 as in the latter. Anterior gnathopoda with the carpus expanded below to a 

 rounded setiferous lobe, propodos rather broad in its proximal part, with the 

 palm very oblique, and defined posteriorly by an obtuse angle carrying 2 

 small spines, dactylus rather elongated. Posterior gnathopoda in female 

 scarcely larger than the anterior, basal joint somewhat lamellar, carpus but 

 little expanded, propodos narrow oblong in form, without any distinctly 

 denned palm; those in male exceedingly powerful, and generally bent up 

 in a strong sigmoid curve, basal joint much expanded and broadly oval in 

 form, carpus very large and scarcely widening distally, upper edge concave 

 in the middle and slightly serrated posteriorly, lower one produced in the 

 middle to a strong, anteriorly curving, dentiform projection, anterior corner 

 terminating in a similar projection, above which occurs another somewhat 

 smaller one, propodos much narrower than the carpus and also shorter, oblong 

 oval in form, dactylus very large, and impinging, when closed, against the 

 inferior projection of the carpus. Basal joint of the 2 anterior pairs of 

 pereiopoda fully as long as the remaining part of the leg, and very broad, 

 with the anterior edge boldly curved in its proximal part. Antepenultimate 

 pair of pereiopoda extremely short and stout, with the meral joint expanded 

 on both sides of the carpal one to a setiferous lobe: the 2 posterior pairs 

 more slender and of same structure, with the basal joint but little expanded 

 and nearly smooth. First pair of pleopoda with the basal part not expanded 

 inside, both rami well developed,, the inner one having the base considerably 

 tumefied, and densely clothed with plumose setse; the 2 succeeding pairs 

 rapidly diminishing in size, and having the outer ramus very small, uniarticu- 

 late. First pair of uropoda with the outer ramus much larger than the 

 inner, and edged outside with numerous small spinules; 2nd pair scarcely 

 more than half as long, with the terminal joint oblong oval; last pair with 

 the basal part rather thick, terminal joint extremely minute and hooked. 

 Telson forming a narrow transverse plate, slightly incised in the middle, and 

 -' rows of sharp, upturned spines. Body of a uniform pale yellow 

 colour. Length of adult female 4 mm., of male 5 mm. 



