414 G. 0. SARS, [T. XIII 



attenuated distally, with its last segment, as usual, the longest. Eyes (see 

 fig. 2) not very large, and but little projecting laterally beyond the sides of 

 the carapace, form nearly cylindrical, the corneal part being scarcely at all 

 expanded and but very slightly emarginated on the dorsal face. Superior 

 antennae with the last joint of the peduncle (fig. 3) having only a few ciliat- 

 ed setae at the inner corner, male appendage (see fig. 21) fully as long as 

 the peduncle. Inferior antennae (fig. 4) with the basal part rather thick, and 

 forming at the outer corner only a very slight obtuse expansion, scale but 

 very little exceeding the peduncle of the superior antennae, form pronounced 

 rhomboidal, the outer part in front of the exterior corner occupying nearly 

 half the length of the scale, apical segment (fig. 5) very distinct and bearing 

 5 of the marginal setae. Gnathopoda (see fig. 14) having at the tip 5 spines, 

 the 3 outer of which are not ciliated and claw-like, the 2 inner ones ciliated 

 in the middle and terminating in a setiform lash. The 2 anterior pairs of 

 pereiopoda (fig. 15) having the ischial and meral joints rather expanded and 

 nearly of equal length, the latter edged interiorly with several short spines 

 in addition to the setae, tarsal part much shorter than the meral joint, with 

 the 1st articulation rather broad and armed interiorly with several strong 

 spines, dactylar joint (see fig. 16) small, with the terminal claw well defined 

 from the joint and setiform. The 4 posterior pairs of pereiopoda (fig. 17) 

 having the meral joint strongly incurved, forming a genicular bend with the 

 ischial one, tarsal part represented by a single very short and thick articu- 

 lation firmly connected with the meral joint, and having in front 4 strong 

 claw-like spines disposed in pairs (see fig. 18), dactylar joint forming only 

 a very minute and pellucid lobe, mostly hidden between the spines and setae 

 issuing from the tarsal joint. Third pair of pleopoda in male (fig. 22) having 

 the outer ramus a little longer than the inner; outer ramus of 4th pair (fig. 

 23) reaching beyond the tip of the telson, outer flagellum nearly twice the 

 length of the inner. Telson (fig. 20) much shorter than the last segment of 

 metasome, and not nearly twice as long as it is broad at the base, outer 

 part considerably tapering, lateral edges nearly straight and converging, 

 being each armed with about 12 spinules, of which the 3 proximal ones 

 are somewhat larger than the 4 or 5 succeeding ones, which are placed 

 somewhat more apart, the outer 4 spinules on each side successively increas- 

 ing in length distally, apical spines much stronger than the others, and 

 having between them a very small dentiform projection, which sometimes 

 is minutely bidentate at the tip (see fig. 24). Inner lamella of the uropoda 

 (see fig. 19) considerably projecting beyond the telson, and moderately tume- 

 fied at the base, with the otolith of middle size, inner edge armed, below 

 the marginal setae, in its whole length, with about 13 spines, successively 



Bulletin N. S. IV (XXXVI) p. 66. 



