THE MOUNT DESERT REGION 191 



Serripes Beck 



S. GROENLANDicus (Gmeliii). {Cardium groenlandicum 

 Gmelin, 1790, Syst. Nat. ; Aphrodite groenlandica Gould, 1870, 

 Inv. Mass., p. 144, fig. 454 ; S. groenlandicus Dall, 1900, Proc. 

 U. S. Nat. Mus.) The young* of this species are readily dis- 

 tinguished by the brown angular markings. We did not 

 dredge any adults, not even dead valves. Stations : D 23, 24, 

 36. Reported from Casco Bay, Cape Cod Bay, off Stonington. 

 Common at moderate depths northward to Hudson Strait and 

 Greenland. 



Veneridae 

 Venus Linne 



V. MERCENARiA Liuuc, 1758, Syst. Nat. (Gould, 1870, Inv. 

 Mass., p. 133, fig. 445.) This is the quahog or hard clam of 

 commerce and has not heretofore been reported alive in Maine 

 north of Casco Bay. See account in General. Common on 

 shores of Nova Scotia, throughout Northumberland Strait, 

 south shore Bale des Chaleurs. 



LiocYMA Dall 

 L. FLucTuosA (Gould). {Venus fiuctuosa Gould, 1841, Inv. 

 Mass.; Tapes fiuctuosa Gould, 1870, Inv. Mass., p. 136, fig. 

 447; L. fiuctuosa Dall, 1902, Proc. U. S. Nat. Mus.) Not 

 dredged, but Blaney reports a few valves. No living animal 

 reported from New England. Widely distributed from the 

 Atlantic coast of Nova Scotia to Labrador and Greenland, in 

 from 10 to 50 fathoms, but apparently local, though usually 

 abundant where found. (Whiteaves). 



Tellinidae 

 Macoma Leach 

 M. BALTHicA (Linne). (Tellina halthica Linne, 1758, Syst. 

 Nat. ; M. fusca Gould, 1870, Inv. Mass., p. 93, fig. 400 ; M. frag- 

 ilis Verrill, 1873, Inv. Vineyard Sound; M. halthica Dall, 1900, 

 Proc. U. S. Nat. Mus.) Very common in coves. Some shells 

 very thin, particularly when near mouth of brook like station 

 S 35. Eaten by wild duck. Common to the harbors and bays 

 of New England, and along Atlantic coast of Canada. 



