PLKISTOCKNK FOSSILS. 23') 



much loss genei'iilly (listrilmted in tlie I'leistoceno. Western 

 America as far south as Catalina Island, l*. P. C Ikitish Columbia. 



Astnrtc Lrinreiitidua. Lyell. 



Fossil — Leda olay, Montreal, abundant ; Beauport and Rivirre-dii 

 Loup, rare. 



Recent --(ireenland (Morcli) ; Lalirador (Packard) ; Murray ]5ay. 



This shell may l)e a variety of the next species ; but it is at least 

 a very distinct varietal form. It is distinguisiied by its very fine and 

 uniform concentric striation, passing to the ends of tlie valves and to 

 the ventral mai'gin. There are two varieties, a Hatter, ami a more 

 tumid. I have the former from (Jreenland named by Morch .1. 

 Bdiik.iii, and tlie latter named A. striritti ; but they arc diirei'cnt from 

 shells indicated by tiieso names in (lould and elsewhere. The only 

 rocent specimens that I have seen from the gulf of St. Lawrence, whicli 

 can be referreil to this species, are a few I dredged at Murray 1>ay. 

 A. LdiiroilUiiKi is very iibundant at Montreal, l)iit niueli more rare 

 nearer the coast. It is evidently an arctic form. (See Figure, Plate I.) 



Astarle (Nii:(iiii(() Bantfii. Leach. 



Fossil ^Leda clay, Riviere-du-Loup ; Anticosti ; Little Metis ; 

 Kamouraska, abundant; (Quebec, not infrei^uentj Montreal, very rare ; 

 Labrador (Packard) ; St. John (Matthew) ; Portland, Maine, also 

 Uddevalla, Clyde beds and Crag. 



Recent— Abundant at (iaspe and elsewhere in (Julf of St. Lawrence, 

 and also Arctic seas and coast of Nova Scotia. 



This shell is that named A. Bnnhnii, in (iould's last edition, 

 also in Beechey's voyages. It is easily distingui.'ilied from the last 

 species by its coarser striation, fading toward the ends and also toward 

 the margin of the shell. It is, however, about tlie same size, but less 

 delicate and symmetrical in form. It is tiie common small Astarte of 

 the gulf of St. Lawrence, and also of the Post-pliocene of Riviere-du- 

 Loup ; but becomes very rare at Montreal, where it is replaced by 

 A. Ldiii-eiitidiKi. This species was named .4. cowi/o'essa in my former 

 lists, and it is certainly very near to Kuropean specimens of that 

 species, especially to the fossils from the Clyde beds and the Crag. 

 (See Figure, Plate I. ) 



Astarte elliptic^. Brown. 



Fossil — Labrador; Saguenay ; Portland, Maine. 



Recent — Labrador ; Murraj' Bay ; Riviere-tUi-Loup ; Little Metis ; 

 Kamouraska; Gaspe ; coast of Nova Scotia, &c. Also Greenland; 

 Norway (typical) ; Scotland. 



