364 Dr. Olias. C^Iiilton on a new Species of the 



Locality. Cuvier Island, off the coast of Auckland, New 

 Zealand ; between tide-marks. 



I have named the species after Mr. P. W. Grenfell, Keeper 

 of the ('uvier Island Lighthouse, to whom I am indebted for 

 many interesting specimens of Crustacea. 



In addition to the above brief diagnosis, the following 

 description may be given : — 



Side-plates 1-4 fairly deep, first one widening slightly 

 below and produced a little anteriorly. Third segment of 

 pleon with postero-lateral corner quadrate, very little out- 

 drawn, subacute, the posterior margin nearly straight, but 



Fie:. 4. 



Fig. 5. 



Fig. A.— Hyale ffrenfelli, ^. Fifth peraeopod. 

 Fig. 5. — Ditto. Urus, with uropoda and telson. 



with a few faint irregularities and three very minute setules. 

 Eyes rather large, irregularly rounded. Antenna 1 half as 

 long as antenna 2, peduncle short, the segments decreasing 

 reo-ularly in size, flagellum with about sixteen joints. An- 

 tenna 2"more than half as long as the body, ultimate joint of 

 peduncle slightly longer than preceding ; flagellum long, 

 about twice as long as peduncle, with many joints. 



