442 DR MUERAY ON THE DEEP AND SHALLOW-WATER ^lARINE FAUNA 



LIST IV/(. 



The following eighteen species have been recorded as occurring in the fossil condition, 

 and are therefore of interest : — 



C'l/there polytrema. 

 Kritlie harto7iensis. 

 Pulijcope orhicu laris. 

 Sderochilus contortus, 

 Xestolebens depressa. 

 Saxiiriva arciica. 

 Dentalium entalis. 

 Homalogyra atomus. 

 Natica (Limatia) griinlandica. 



Odostomia rissoides. 

 Puneturella noarhina. 

 Scissurella crispata. 

 Hippothoa Jia<jdlum. 

 Idmonea atlantica. 



„ marionensis. 

 Saliconiaria nialvinensis. 

 Platydia anomioides. 

 Rhynelionella nigricans. 



LIST IV «. 



Turning now our attention to the 325 genera represented at these shallow-water 

 Stations, we find that the following 25 genera (or 8 per cent.) are known up to the 

 present time only from these Stations. It will be observed that the great majority (20) 

 of the genera each include only a single species taken at a single Station ; 1 genus, 

 however, with a single species was taken at two distinct Stations ; 3 genera each 

 contain 2 species taken at two Stations, and 1 genus contains 2 species, both taken at 

 the same Station, as indicated in brackets after the name : — 



In addition the two genera Eulagisca and Neasellus, each with a single species, are 

 known apart from these dredgings only from near the Rio de la Plata, in GOO fathoms. 



(Jnalhoplmusia ylrjas, Willeiiioes-Suhni. Taken by the Challenger iu the North Atlantic and in the Kerguelen Kegion. 



