18 



TERRA NOVA" EXPEDITION. 



Eemarks. — Following the example of Mr. Hodgson, I have included under this 

 name a number of specimens showing marked divergences in the relative lengths of 

 the proboscis and of the legs. The species appears to be the commonest of the genus 

 in the Eoss Sea area. 



Colossendeis wilsoni, sp. u. (Text-fig. 2). 



Occurrence. — Station 220, off Cape Adare, 45-50 fathoms ; 1 $ (Holotype). 



Description. — Trunk very compact; its greatest width, across the first pair of 

 lateral processes, little less than its length ; lateral processes in contact except for a 

 sfit-like interval between the third and fourth pairs. Ocular tubercle very broad, 

 transversely oval as seen from aljove, bluntly rounded ; eyes dark, anterior pair (or at 

 least their pigmented area) much larger than the posterior. On dorsal surface behind 

 ocular tubercle is a strongly convex area defined posteriorly by a crescentic groove. 



Proboscis decurved, a fittle longer than trunk, sub-cylindrical, slightly dilated 

 about the middle and again at the tip. 



