121 



coast of Nova Scotia by Willis and J. Matthew Jones ; at several localities 

 in the Gulf and mouth of the River St. Lawrence, by Sir J. W. Dawson, 

 Bell, Packard and the writer ; also at Port Burwell and Ashe Inlet, Hudson 

 Strait, by Bell (in 1884). The species has also been found fossil, in the 

 Pleistocene deposits of Beauport, Montreal and Greenland. 



MODIOLARIA CORRUGATA (StimpSOn). 



Mytilus corrngatus, Stinipson (1851). 



Modiolnria corrugata, Morch (1857) ; and Gould (I87O). 



The geographical distribution and bathymetrical range of this species in 

 eastern Canada are essentially the same as those of M. discors. 



M. corrugata has been found fossil in the Pleistocene deposits of Riviere 

 du Loup (en bas), by Sir J. W. Dawson. 



MoDiOLARiA NIGRA (Gray). 



Modiola nigra. Gray (1824). 



Modiola nexa, Gould (1841). Young. 



Modiolaria nigra, Loven (1846). 



Mytilus discrcpans, Stinipson (1851) ; not of European authors. 



Modiolaria discrcpans, Packard (18G7). 



Has been taken in the Bay of Fundy, in Annapolis Basin ; in Halifax 

 Harbour, N.S,; at several localities in the Gulf and mouth of the River St. 

 Lawrence ; on the Atlantic coast of Labrador, and more recently, at Port 

 Burwell, and Ashe Inlet, Hudson Strait. 



It has been collected also in the Pleistocene deposits at Kennebeck, 

 Maine ; at Black Point, N.B. ; at Riviere du Loup, Montreal ; and Labrador. 



Crenella faba (Miiller). 



Miitilus faha, Miiller (1776) ; and O. Fabricius (1780). 

 Crenella faha, Stimpson (1860). 



Henley Harbour, Strait of Belle Isle, in 4 fathocis (Packard). L'Anse au 

 Loup, 10 to 15 fathoms; Fox Harbour, St. Lewis Island, 1 to 4 fathoms; 

 and Dead Island, near Square Island, in shallow water; Stearns expedition 

 (Miss Bush). Common on the Labrador reef, near Fort Chimo, Ungava Bay, 

 L. M. Turner, 1885 (Dall). Greenland (Fabricius). 



Crenella pectinula (Gould). 



Modiola pectinula, Gould (1841). 

 Miitilus pectinulus, Stinipson (1851). 

 Crenella pectinula, Stinipson (1860). 



Gulf of St. Lawrence, Mighels (Gouhi). Gaspe Bay and off Cap des 

 Rosiers lighthouse, dredged by the writer; Ruisseau Vallt-e and Marsouin 



