139 



Family Kelliellidce. 

 TuRTONiA MixuTA (Fabricius). 



Venus minuta, O. Fabi'icius (1780). 



Lescea minuta, Moller (1842). 



Turtonia mmuta, Alder (1848) ; and Stimpson (1851). 



Turtonia nitida, Verrill (1872). 



Sable Island, common (Willis); Greenland (Fabricius, and Moller 



Family Mactridce. 

 Spisula (Hemimactra) soLiDissiMA (Dillwyn). 



Mactra solid issima, Dillwyn (1817) ; fide Dall. 

 Mactra similis, Say (1822). 

 Mactra gir/antca, Lamarck (1830). 

 Mactra solidissima, Gouft (1841). 

 Mactra pondcrosa, Philippi (1844). 

 Heminiactra noUdiiisima, Conrad (1868). 

 Spisula (Hemimactra) solidissima, Dall (1895). 



An inhabitant of sandy stretches or bays, living at depths of from low- 

 water to ten fathoms. It is common in the Bay of Fundy, on the Atlantic 

 coast of Nova Scotia, and in Northumberland Strait, and it is also found, 

 though much moi-e sparingly, in the Gulf of St. Lawrence, northward to the 

 Strait of Belle Isle. 



Spisula (Hemimactra) polynyma (Stimpson). 



Mactra similis, Gray (1842) ; non Say. 



Mactra ovalis, Gould (1841 and 1870) ; non J. Sowerby (1817). 



Mactra ponderosu , Stimpson (1851). 



Mactra polynyma, Stimpson (1860). 



Spisula {Hemiraactra) poli/ni/ma, Dall (1895). 



A scarcer shell than the preceding, of which it maybe only a variety. It 

 has a similar habitat and the same geographical distribution. 



MuLiNiA lateralis (Say). 



Mactra lateralis, Say (1822). 



Mulinia lateralis. Gray (1837). 



Standclla lateralis, H. and A. Adams (1858). 



About ten miles north of Shediac, N.B., in 10 fathoms, sand ; one 

 specimen, dredged by the writer in 1873. 



