20 



"TERRA NOVA" EXPEDITION. 



Third right leg (distal segments from fourth)- 



Coxse 



Femur 



First tibia . 



Second tibia 



Tarsus 



Propodus 



Claw . 

 Palp- 

 Second segment 



Third 



Fourth 



Fifth 



Sixth 



Seventh 



Eighth 



Holotype. 

 3-75 

 6 



7 



2 



56 



8 



2 



08 



96 

 64 



08 



8 



96 



72 



Remarks. — The most noteworthy character of the specimen described above is the 

 presence of only eight segments in the palp, as compared with the nine that are present 

 in the other species of the genus. The condition of the palps in some specimens of 

 C. lilliei, described below, suggests the possibility that the reduction may be the result 

 of regeneration after injury, but the complete symmetry of the two palps in the present 

 specimen is against this supposition. The relation of the species to Hodgson's 

 " Notoendeis " has already been alluded to. Apart from the character of the palps, 

 the species is sufficiently distinguished from all other species of the genus by the 

 characters given in the key. 



The species is named in memory of Dr. E. A. Wilson, the chief of the scientific 

 staff of the expedition. 



Colossendei'i glacialis, Hodgson. 



C. glacialis, Hodgson, 1907, p. 61, PL ix, fig. 2, PL x, figs. 3 and 4. 

 C. gracilipes, Bouvier, 1911, p. 1137; id., 1913, p. 58, figs. 12-19. 



Occurrence. — Station 194, off Gates Land, 180-200 fathoms ; 1 $. Station 294, 

 Eoss Sea, 158 fathoms; 1 ^. Station 314, McMurdo Sound, 222-241 fathoms; 1 <?. 

 Station 338, Entrance to McMurdo Sound, 207 fathoms ; 1 ?, 1 yg. Station 355, 

 McMurdo Sound, 300 fathoms ; 1 $. 



Measurements, in unit. — " Terra Nova." 



Length of proboscis . 

 Greatest diameter of proboscis 



Length of trunk 



Stn. 19-4. 



<? 



10-0 



2-5 

 12-0 



Stn. 338. 



9 

 11-75 



2-5 



14-0 



" Discovery." 

 Holotype. 



? 

 8-75 



2-0 



10-0 



