ISOPODA. 71 
Of the second antenne only small portions remain. These arise close to the 
external border of the cephalon, and only four joints of the peduncles exist ; the first 
three are very short and stout, armed externally with a stout spine; the third has a 
very oblique distal margin and is provided internally with several strong sete; the 
fourth joint is also very small and much more slender than the others. 
The animal has not been dissected at all, and from what can be seen of the maxillipeds 
in situ they are of the usual type and have a comparatively very large epignath, 
broad and ending in a blunt point. The palp is five-jointed, the first joint is short and 
broad ; the second nearly three times as long; the third half as Iong as the preceding 
but narrower, the two terminals are subequal in length, rather short and setose. 
The pereiopoda may be described as rather long, but not disproportionately so, 
and very slender ; most of them have been more or less severely injured. The first pair 
are complete and are ambulatory ; they exhibit a long slender basis, an ischium rather 
more than half the length, a short and dorsally-expanded merus, a carpus as long as 
the ischium, a propodus almost equally long, and a dactylus one-third the length. 
Ventrally the carpus and propodus bear scattered sete. J have not been able to 
distinguish any accessory claw. The other pereiopoda are very similar as far as 
can be made out, but the proportions of the joints are rather different, and there is 
no accessory claw. They are too fragmentary to permit of a definite statement as to 
the adaptation of the posterior ones for swimming as is characteristic of the Munnopside. 
The first pleopoda are strongly developed as an operculum to the remainder, and 
the inner border of that of the right side is armed with four or five stout teeth. 
Only a single specimen of this species was extracted from the dredge material 
shortly after arrival at Winter Quarters. Inside the 20-fathom line, February 28, 1902. 
I have to express my sincere thanks to Messrs. West, Newman & Co. for the 
trouble and care they have taken in the preparation of the plates, also to Mr. F. 8. 
Murray for other assistance. 
[P.T.0. 
