104 ON THE LAND AND FRESH-WATER 



Physa marginata, Lea. (not of Say.) Near Rimouski village.. 

 Probably a variety of P. beterostropba. 



Physa hypnorum, Linn. (P. elongata, Say.) Abundant about 

 Quebec and Montreal. Green Island: Metis: St. Anne: El. B^ 



Physa aurea, Lea. Several localities in tbe county of Rimouski t 

 R. B. Near Quebec : J. F. W. 



Physa elliptica, Lea. Small lake one mile west of the Indian 

 village in Arundel : W. D. 



Planorbis macrostomus, nobis, (see description, and Figure 12.} 

 Ponds near tbe Mile-end toll-gate, Montreal : R.J. E, and J. F. W.. 



Planorbis trivolvis, Say. Common throughout the district. 

 Planorbis corpulentus of Say appears to be a variety of this 

 species. 



Planorbis lentus, Say. Less frequent than the above. St- 

 Lawrence at Montreal. An almost hyaline variety occurs with 

 the normal form. 



Planorbis bicarinafws, Say. Abundant apparently all through 

 the province. Extremely large at Brome Lake, R. J. F. At Quebec 

 a variety with transverse wrinkles, and the upper carina almost 

 obsolete (P. megastoma ? De. Kay.) is more abundant than the 

 type. 



Planorbis campanulatus, Say. Near Quebec : J. F. W. : Fine 

 at Brome Lake : common in the Richelieu River at St. Johns : 

 St. Helen's Island, Montreal : R. J. F. Near Grenville, and in 

 numerous lakes throughout that district. W. D. 



Planorbis exacutus, Say . Scarce : swamps near the City mills,. 

 Montreal : R. J. F. 



Planorbis deflectus, Say. Near Quebec : J. F. W. Great Lake 

 Matapedia: R. B. Sixteen-Island and Sugar-bush lakes: W. D* 



Planorbis parvus, Say. Widely distributed, and plentifu 

 throughout the district. 



Planorbulina armigera, Say. (sp.) Trenches in fields near the 

 Beauport road, Quebec : J. F. W., and W. Couper : Nuns' Island, 

 Montreal : R. J. F. Ponds on the top of Montreal Mountain': R. B. 

 Ancylus fuscus ? Adams. Ponds near the Mile-end toll-gate, Mon- 

 treal : R. J. E, and J. F. W. 



Ancylus rivularis ? Say. St. Lawrence, at Quebec and Montreal : 

 St. Charles river near Quebec. Not having access to Haldeman'& 

 monograph of this genus, I am uncertain about these two species* 

 The last may be A. parallelus, Haldeman. 



