A M PUTIN IDA. 269 



Hornellia incerta, n. ap. Plate IV., figs. 27. 

 Station LIU., 4 or 5 : off Chilavaturai, I : Cheval Paar. 

 Description of female with ova. 



Bead as long as the first 2 segments, which, as well as the head, arc shorter in the 

 male. Eyes large, wide-oval, red. 



Second ami 3rd pleon and 1st and i2 1 1 < 1 urus segments postero-dorsally dentate, the 

 teeth subequal. Hind margin of the epimere of the 3rd pleon segment rather 

 concave, the angle produced and acute. 



First segment of the urns dorsally depressed, twice as long as the 2nd or 3rd. 

 (In the male the teeth on the hind margins of the segments and the dorsal 

 depression are more conspicuous than in the female.) 



Upper antennse more than half as long as the body, the peduncle scarcely half the 

 length of the flagellum ; the 1st joint considerably wider and longer than the 2nd, 

 which is more than twice as long as the 3rd ; tiagellum slender, I 4-jointed ; appendage 

 2-jointed, the 1st the longer. 



Lower antennse imperfect in all the specimens. In the male the 2nd joint is as 

 wide as the 1st of the upper antenna' and reaches to the 3rd joint of the upper 

 flagellum ; it is densely setose above. 



Mandibular palp projecting beyond the end of the 1st joint of the upper antennae. 

 First gnathopods : side-plates oblong, deeper than wide, expanding below with 

 marginal setules and intramarginal seta.'. Wrist as long and wide as the hand, beino- 

 much widened behind: hand oval, widest near the base; palm -scarcely defined by 

 2 sets of spines; the 3rd, 4th. and 5th joints are furnished with many long spines, of 

 which many are pectinate ; dactylus slender, about two-thirds the length of the hind 

 margin of the hand (fig. 27. gn. 1 ). 



Second gnathopods nearly resembling the 1st, hut rather larger; the spines fewer 

 and simple. The coxopodite is remarkably large and distinct in both the gnathopods. 

 First and 2nd pereeopods : side-plates of the 1st as in the gnathopods ; of the 2nd 

 much wider below and sloped away behind; 1st joint rather longer than the 2 next. 

 narrow, slightly curved; 3rd joint somewhat dilated behind, subequal to the 5th, the 

 3rd shorter. Dactylus strong, slightly curved. A few slender spines on all the joints. 

 Remaining perreopods imperfect ; the 1st joint about twice as long as wide, 

 sub-ovate; the 3rd joint about as long as the 1st. 



First uropods long, slender, and spinous; rami and peduncle all subequal. 

 Second uropods: outer ramus as long as the peduncle, the inner about one-fourth 

 longer : both spinous. 



Third uropods: narrow, lanceolate: the inner ramus rather longer than the outer 

 and twice as long as the peduncle. 



Telson cleft almost to the base, each division notched at the tip, the outer anffle of 

 the notch longer and wider than the inner (fig. 27. 1.). 

 Length of female with ova, 3 millims. 



