Indian Deep-sea Dredging. 



445 



outer layer, with wliicli is most beautifully contrasted the 

 pale cinnamon interior. 



Fio:. 13. 



Oi 



Pleurotoma symbiotes.—a, from in front ; h, from the side. Natural size. 



Dead and eroded shells of four species of Pleurotomids were 

 taken at the following stations: — 112, 561 fathoms: 113, 

 683 fathoms ; 115, 188 to 220 fathoms. 



Family Pterotracheidae. 

 7. Carinariaj sp. 

 At Station 118, 1803 fathoms. Probably from the surface. 



Family Pleurobranchidae. 



8. PleurohrancJiuSj sp. 



At Station 116, in 405 fathoms, a species coloured dark 

 purple. 



Family Pleurophyllidiidae. 



9. PleuTopliyllidia^ sp. 

 At Station 120, 240 to 276 fathoms. 



Ann. & Mag. N. Hist. Ser. 6. Vol. viii. 31 



