Natural Science, vol. vii. 



[Plate XV. 



Cephalopods, Brachiopods, Cephalodiscus. 



Fig. I. Bathyteufhis abyssicola, Hoyle ; Southern Ocean, i,6oo fms. ; nat. 

 size. Fig. 2. Aniphitretus pelagictis, Hoyle ; Kermadec Is. ; somewhat 

 enlarged. Fig. 3. Tsrebratula wyvilhi, Dav. Fig. 4. Discim atlantica, 

 King. Fig. 5. Cephalodiscus dodecalopJms, M'Int. ; ventral view. The pro- 

 boscis is seen surrounded by the tentacular arms. The mouth is concealed 

 by the posterior half of the proboscis. 



