30 



TERRA NOVA" EXPEDITION 



M/mphon f/racillimum, STp. n. (Text-fig. 5). 



Occurrence.— Station 314, McMurdo Sound, 222-241 fathoms; 1 $ (Holotype). 



Description. — Trunk elongated and slender, the lateral processes separated by 

 more than their own diameter. Cephalic segment nearly as long as remaining 

 segments together. Neck long and slender, less than half as wide as anterior dilatation 

 of cephalon. Ocular tubercle broad, low, and rounded ; ocular pigment abundant 

 and dark. 



Proboscis cylindrical, slightly decurved, rather pointed at the tip as seen from 

 above, shorter than cephalic segment. 



Fig. 5. — Nymplion gracillimum, sp. n., Male. A. Dorsal view of body with chelophores, palps, and iJrst 

 eox£e. B. Lateral view of body with chelophore, palp, and oviger. C. Chela, further 

 enlarged. D. Third lew of ri^ht side. 



Abdomen elevated, slightly clavate, and more than twice as long as wide. 

 Chelop)hore with scape longer than proboscis and six times as long as wide. Chela 

 shorter than scape, fingers about one-third longer than palm. 



