GASTEROPODA. +515) 
H. avternata, Say. Gould. 
H. strratetua, Anthony. Gould. 
H. exieua, St., Bost. Proce., iii. 175. 
This is perhaps H. annulata, Case, Am. Journ., 
1847. That name, however, is preoccupied by Sow- 
erby. 
H. minuscuta, Binney.— Vermont, (Ad.) Essex Coun- 
ty, Mass. (True.) 
. FULIGINOSA, Griffith. 
. ceELLARIA, Mull. Gould. 
INORNATA, Say. — Vermont, (Ad.) 
. ARBOREA, Say. Gould. 
. ELECTRINA, Gould. 
. INDENTATA, Say. Gould. 
CHERSINA, Say. Gould. 
. SUPPRESSA, Say. — Conn. (Lins.) 
. MULTIDENTATA, Binney. — Vermont. 
Mote ae estes 
. LINEATA, Say. Gould. 
Succinsa opiiqua, Say. 8S. campestris, Gould. S. 
ovalis, Say. 
S. avara, Say. Gould. 
S. ovauis, Gould. Binney. (non Say.) 
ViTRINA PELLUCIDA, Drap. Say. Adams. Binney. He- 
lix pellucida, Mull. O. Fabr.  Vitrina limpida, Gould, 
Binney’s Terrest. Moll., ii. 58. This being a boreal 
species, occurring in Greenland, it is probable that it 
is identical with the European one to which it was 
referred by Mr. Say. 
