PLELSTOCKNE FOSSILS. 23.'? 



Recent — Everywhere on the coasts of tlie gulf and river St. 

 Lawrence, as a common littoral shell, I have found it as far up the 

 river as Kamouraska. 



A tiiin and delicate variety with smooth epidermis is found in the 

 Loda clay ; coarser aad more wrinkled varieties in the Saxicava san(L 

 Lirger specimens are found at (Quebec and Rivii-re-du-Loup than more 

 inland. 



In the modern (iulf, the small and depauperated varieties are 

 littoral and near tiio l)rackisli water, the liner varieties passing into 

 .Uaroma fasnt, of Say, which is a southern variety, are found on the 

 coast of Xova Scotia and in the hay of Fnndy. Tiiis shell is repre- 

 sented iu the European seas and l*ost-plii)ccne deposits hy the closely 

 allied species M. so'idtda or Jia/fliirn, which seems to pass through a 

 cfirresponding series of varieties, but to be distinct. On the western 

 American coast it is similarly represented by M. incoiisjticua. Mr. 

 Tiyon and Mr. Whiteaves believe the three forms to be conspecific. 



It is said to be the Tdlina Fnhririi of Hanley, and I have specimens 

 from (Jreenland from Morch labelled T. teiierd. The 7'. tcncra of 

 Ljach, however, is proxhiKi, Brown, teste Hanley, It is apparently 

 the VtuuH frwjilis of Fabricius. 



It is one of the most common and abundant shells of the Pleis- 

 tocene, as it is of the American coast from (ireenland to New 

 Kngland. 



Macoma calcarea. Chemnitz. 



Fossil — Leda and boulder-c'ays ; Montreal; Quebec; Murray Bay; 

 Uiviere-du-Loup ; Anticosti ; New Richmond ; (ioose River ; Ciiau- 

 diere Station ; Duck Cove, St. Joiin, N. B. (Mattliew) ; Maine ; Labra- 

 d(jr ; (ireeulaud (MiUler) ; also Europjan I'leistocene. 



Recent — Little Metis ; Gaspj ; Rivicre-du-Loup ; Arctic seas gener- 

 ally, and on the American coast south to Massachusetts. 



This shell is extremely al)undant in the Lcda and boulder-clays, and 

 often occurs in the clay with the valves attached. It is also of large 

 size and in tine condition, especially at Riviere-du-Loup. It is Tellina 

 proxima, lirown, T. ftfthaloaa, .Spengler, and T. sordhla of Couthuoy. 

 According to Hanley, the T. lata of Gmelin was founded on a figure 

 of this shell. British Columbia. 



Macoma injiata. Stimpson. 



Fossil— Montreal ; Riviere-du-Loup. Rare, 



Recent — Murray Bay ; and dredged in deeper parts of the gulf of 

 St. Lawrence by Mr. Whiteaves. 



