491 



jections increasing in size posteriorly, that of 1st segment rather bi-oad, 

 and terminating in front in an acute corner overlapping the base of the 

 cephalon. First segment of nrosome deeply impressed at the base dorsally, 

 and forming behind the depression a well-marked laminar projection. Cephalon 

 mnch shorter ihan the first 2 segments of mesosorae combined, and somewhat 

 depressed above, rostral projection distinct, though not very large, lateral 

 corners obtusely truncated at the tip, and defined behind by a well-marked 

 incision. First pair of coxal plates rather small, with the anterior corner 

 somewhat produced; 2nd pair obliquely truncated at the tip; 3jd and 4th 

 pairs much broader in female than in male, though scarcely deeper than the 

 corresponding segments; 4th pair slightly emarginated in their upper part, 

 the emargination being defined below by an angiilar projection ; 5th pair 

 nearly twice as broad as they are deep, and having the anterior lobe a little 

 larger than the posterior one. Last pair of epimeral plates of metasome 

 nearly rectangular. Eyes rather large, oblong reniform, pigment dark brown. 

 Superior antennae in female aboiit equalling in length '/a of the body, 1st 

 joint of the peduncle about the length of the cephalon, and much shorter 

 than the other 2 combined, flagellum exceeding the peduncle by about Vs of 

 its length, and composed of numerous very distinctly defined articulations, 

 accessory appendage very slender, exceeding V* of the length of the flagellum, 

 and composed of about 7 articulations. Inferior antennae a little shorter 

 than the superior, last joint of the peduncle not attaining the length of the 

 penultimate one, flagellum about the length of the peduncle, and, like that 

 of the superior antennae, composed of numerous short articulations, each 

 having, in addition to the wreath of cilia, a distinct calceola. Antennae in 

 adult male much more slender than in female, the inferior ones being 

 the longer, with the flagellum considerably exceeding the peduncle 

 in length. Gnathopoda a little unequal in size, the posterior ones being the 

 larger, propodos in both pairs about the length of the 3 preceding joints 

 combined, palmar edge densely setous, and armed with a number of strong- 

 spines. Pereiopoda moderately strong, the 3 posterior pairs somewhat 

 increasing in length, and having the outer joints but little expanded, basal 

 joint of last pair much broader than that of the 2 preceding pairs, and 

 having the posterior edge angularly curved in the middle. Last pair of 

 uropoda with the outer ramus a little larger than the inner, both being 

 densely setous on the inner edge. Telson reaching to the end of the basal 

 part of the last pair of uropoda, and oblong linguiform in shape, nearly 

 twice as long as it is broad at the base, outer part slightly tapering, and 

 having on either side a minute denticle, tip obtusely rounded and minutely 

 serrulated, with a very small sinus in the middle, on either side of which 



