174 



Lacuna qlacialis, Moller. 



One adult living specimen of this Greenland shell was dredged by the 

 writer in 1871 on the north shore^of the Gulf or mouth of the River St. 

 Lawrence, half way between Pointe des Monts and the west end of Trinity 

 Bay, in 96 fathoms, small stones and coarse sand. 



Family Turritellidce. 

 Turritella erosa, Couthouy. 



Turritella erosa, Couthouy (1838). 

 Turritelki polaris (Beck) Moller (1842). 



Throughout the whole region, at depths of from 10 to 60 fathoms. North- 

 ward the species has long been known to occur on the coast of Labrador and 

 Greenland. More recently it has been dredged in Hudson Strait, at Port 

 Burwell and Ashe Inlet, by Bell ; and between King George Sound and the 

 bottom of Ungava Bay, by Low. 



As a Pleistocene fossil this shell has been found at Riviere du Loup, 

 Labrador, and perhaps Montreal (Sir J. W. Dawson). 



Turritella reticulata, Mighels and Adams. 



Turritella reticulata, Mighels and Adams (1842). 

 lurritella lactca, Moller (1842). 

 Mesalia lacteola. Carpenter (1864). 



With the preceding species, on the Atlantic coast of North America, but 

 on the Stearns Ijabrador exploring expedition. Miss Bush says it was dredged 

 in as shallow water as from 2 to 4, and from 3 to 15 fathoms. It is common 

 also on the coast of British Columbia. The types of T. reticulata, are said 

 by its describers to be from the " Bay Chaleur, in the Gulf of St. Lawrence ; 

 taken from the stomachs of codfishes by Mr. Foster, fisherman, in the sum- 

 mer of 1841, to whom we are indebted for specimens." 



In a fossil state T. reticulata has been found in the Pleistocene of the 

 Labrador coast, by Packard. 



TuRRiTELLOPSis acicula (Stimpson). 



Turritella acicula, Stimpson (1851). 

 Turritellopsis acicula, G. O. Sars (1878). 



Grand Manan Island, " dredged in 4 fathoms sand off Point Franklin, 

 and also found alive at low- water mark under stones" (Stimpson). Annapolis 

 Basin, one dead specimen (Verkruzen). Halifax Harbour, N.S. (J. M. 

 Jones) ; Murray Bay (Sir J. W. Dawson); off Caribou Island, in 50 fathoms 



