128 



rounded apex ; flagellum miuute, linear, uniarticulate, with one or two 

 cilia crowning the apex, as long as, or longer than, the flagellum. The 

 inferior antennae are represented by a small rounded tubercle, tipped by 

 a cilia ; situated just beneath the superior pair. 



Thoracic feet ten in number, stout ; claws strongly hooked. Gnath- 

 opoda rudimentary, neither pair produced at the carpus, or at the 

 meros; readily distinguished from the following thoracic feet by their 

 more slender development. 



Locality : North Pacific Ocean. 



VIBITJN^. 



VIBILIA EDWARDSI, Sp. Bate. 



ViMlia edwardsi, Sp. Bate, Cat. Amphi. Crust., 300, pi. xlix, ligs. 6 and 7. 



Locality: North Pacific Ocean. Latitude 4° north; longitude 127° 

 west. Collected May 9, 1873. 



The flagellum of the superior antennae, with its anterior margin ob- 

 lique, and fringed with a row of short spines, is highly characteristic of 

 this species. 



PHRONIMIDiE. 



PHRONIMIN^. 



PHRONIMA PACIFICA, n. sp. 



Head large, broad and rounded on the top, tapering below to the oral 

 apparatus, and excavated in front. Eyes both on the dorsal and lateral 

 surfaces of the head. Thorax narrower than the head, its vertical 

 diameter decreasing rapidly posteriorly; the last segment much longer 

 than any of the preceding segments. Abdomen attenuated. Superior 

 antennae shorter than the head, two jointed; first joint short; the sec- 

 ond about twice as long as the first, with a few cilia at its apex. First 

 pair of gnathopoda having the meros produced, and with the inferior 

 margin furnished with miuute spinules, one of which, larger and longer 

 than the rest, at the apex ; the superior border of the carpus arched, 

 produced antero-inferiorly, and very slightly anteriorly ; produced part 

 not reaching half the length of the propodos ; the anterior margin closely 

 set with acute, triangular teeth ; one at the inferior apex, long and slen- 

 der; the inferior margin finely serrated; propodos about the same length 

 as the superior border of the carpus, cylindrical, arctuate, slightly taper- 



