248 THE ICE AGE IN CANADA. 



Mtirgarita ciiierea. Couthuoy. 



Fossil — Rivicre-du-Loup ; I'ortLaiul. 



Recent — OJaspo ; Labrador; RivitTe-du Loup ; Little Metis; 

 Murray liay; (ireenland to New Kiigliui<l ; var. atriaUi, Dall, .Sitka. 



Cycloslreiua (Mliller'm) co.ilitli(/(i. M<iller. 



Fossil — Montreal ; Clyde beds ; Uddevalla. 

 Recent — (iaspe ; Arctic seas to New England. 



Cyclostrema Cnthrhnxi. Clark. 



' Fossil — Montreal. Rare. 



This is an Arctic and British shell, as yet recognized oidy at 

 Montreal. 



Turritella erosd. Coutliuoy 



Fossil — Labrador ; Riviere-du-Loup ; Montreal ? 

 Recent— Little Metis; Murray Ray; Nova Scotia; Greenland to 

 New England. 



Turritella reticulata. Mighels. 



Fossil — Labrador (Packard). 



Recent— Gaspt^ ; Lal)rador to Gulf St. Lawrence ; also fishing banks, 

 Nova Scotia (Willis) ; British Coluinl)ia. 



My specimens received from Dr. Packard are marked T. costidala 

 but seem rather to be the above species. 



Turritella aciciila, Stimpson. 



Fossil — Riviire-du-Loup ; Labrador (Packard). 



Recent — Murray Bay ; coast of New England. 



There may be some reason to doubt whether this is not a variety of 

 T. erosa. It is quite possible that the above species should be regarded 

 as Mesalive. 



Campeloma decisnm. Say. ( = Palmliiia deci^a, Say. ) 



Fossil — Pakenham Mills, Saxicava sand. 

 Recent — Eastern America generally. 



Valmta tncarinnta. Say. 



Fossil — Pakenham Mills, with the preceding. 

 -^ Recent — Eastern America generally. 



JeflFreya regards this as a variety of V. piscinalis. 



