WILLIS NOVA SCOTIAN SHELLS—GANONG. 427 
Limnea modicella, Say—Gou.p. Pond near Fort Needham, 
Halifax, N.S. J. BR. W. 
Physa heterostropha, Say. Common. 
Physa ancillaria. Dartmouth. 
Physa aurea. Dartmouth; T. Bett, Esq., F. G. S. 
Succinea obliqua. Common. 
Succinea avara. Common. 
Succinea ,(?) Sable Island ; a wonderful fact; * collect- 
ed for me by P. 8. Dopp, Esq. 
Planorbis bicarinatus, SAY. Dartmouth lakes, &e. ; common. 
Planorbis deflectus, Say. Do. do. 
Planorbis Trivolvis, Do. do. 
Planorbis dilatata, Do. do. 
Pupa ovata. J. M. Jones, Esq., Halifax ; environs of Halifax, T. 
BELT, Esq. ; rare. 
Helix nemoralis, Lin. Perhaps imported; common. 
Helix hirsuta, Lay. Do. do. 
Helix hispida, GOULD. Do. scarce. 
Helix cellaria, MULL. Do. do. 
Helix minuta, Say. In the woods west of Halifax; scarce. 
Helix lineata, Say. Do. do. 
Helix chersina, Say. Do. do. 
Helix electrina, GouLD. In the woods, about 12 miles west of 
Halifax ; scarce. 
Helix striatella, GouLD. Do. do. 
Helix arborea, GOULD. Do. do. 
Helix alternata, SAy. Environs of Windsor, N. 8.; common. 
The following specimens were accidentally omitted. 
Spirula Peronii, Lam. Sable Island. 
Coronula Diadema, GOULD. Sable Island, Whales Back. 
Balanus miser, LAM. Whole coast. 
Balanus Geniculatus, St. Dredged in Bedford Basin. Fine. 
Balanus elongatus, GOULD. Common. 
Anatifa vitrea, Lam (7). About Sable Island, 
Anatifa laevis. Common. 
Anatifa (?), Perhaps new to Nova Scotia. J. R. W. 
* Probably carried by aquatic birds, 
