CALIFORNIA STALK-EYED CRUSTACEA. 205 



and obliquely truncate at the end. Maxillipeds very small, reaching 

 only to the end of the antennal peduncle, or to the basal third of the ros- 

 trum; there is an epignath but no exognath. None of the pereopods 

 have an epipod. Telsonwith four pairs of spinules on the dorsal surface. 

 Length, 1 inch. 



Straits of Fuca (Stimpson). 



Heptacarpus? Suckleyi (St .). 



Hippolyte Suckleyi STIMPSON, Proc. Acad. Nat. Sci. Phila., 1864, p. 154. 

 KINGSLEY, Bull. Essex Inst., Vol. X, 1878, p. 62. 



Carapace with the anterior half crested and sloping forwards. An an- 

 tennal and pterygostomiau spine present but no supraorbital spine. Ros- 

 trum scarcely as long as the carapace, rather broad and curved, with a 

 slender, acute tip; upper margin six-toothed, beginning at the anterior 

 third of the rostrum; lower margin four-toothed. Maxillipeds reaching 

 nearly to the tip of the acicle and devoid of an exognath or epignath. 

 Pereopods long, the last pair nearly reaching the tip of the rostrum; first 

 pair only provided with an epipod; dactyls of the last three pairs elon- 

 gated, with only one terminal claw. Abdominal segments with smooth 

 margins, the superior margin of the third segment obtuse. 



Length, 1J inch. 



Puget Sound (Stimpson). 



Heptacarpus? gracilis (St.). 



Hippolyte gracilis STIMPSON, Proc. Acad. Nat. Sci. Phila., 1864, p. 155. 

 KINGSLEY, Bull. Essex Inst,, Vol. X, 1878, p. 62. 



A slender species. Carapace crested on the anterior third. Rostrum 

 very slender, scarcely higher than wide and a little longer than the cara- 

 pace; the upper side is armed with four teeth over the eye, in front of 

 which it is smooth to the tip; lower side armed with four minute distant 

 teeth. An antennal and a pterygostomian spine present. The thick 

 flagellum of the antennules reaches the tip of the rostrum. Acicle a little 

 longer than the rostrum. The maxillipeds reach the middle of the ros- 

 trum and have no exognath. Pereopods very slender and devoid of an 

 epipod. Abdomen very long and strongly geniculated, the third segment 

 compressed and prominent, penultimate joint much elongated. 



Length, 1J inch. 



Puget Sound (Stinipson). Found in deep water. 



