Catalogue Ruce;nti,y Described Mollusca ioi 



Planorbis eEntus Say. 



Fischer and Crosse (38, p. 65) restrict this species to the New Orleans 

 form described by Say and do not consider that the figures given by Gould, 

 Haldeman, Dunker and others represent the species. Dall (32, p. 86) 

 refers it to glabratiis. 



Planorbis liEbmanni Dunker. 



Is referred to orbiculns by Fischer and Crosse (38, p. 71), but is stated 

 by Pilsbry (91, p. 322) to be distinct. It is the type of section Tropicor- 

 bis Brown and Pilsbry. 



Planorbis magnificus Pilsbry. 



Planorbis magnificus Pilsbry, Naut., 1903, XVII, p. 75; Bartsch, Pr. U. S. 



Nat. Mus., XXXIII, 1908, p. 697, pi. 57, figs. 7-9. 

 Type locality : Cape Fear River, Wilmington, N. C 



Panorbis multivoevis Case. 



Is a valid species and has been rediscovered at Howe Lake, Marquette 

 Co., Mich. See Walker, 149, p. 61. Earlier citations of this species from 

 Michigan, except the original one, and Newfoundland refer to P. caiii- 

 paiiutafus rudcntis. 



Planorbis n.\tiiorsti Westerlund. 



Planorbis nathorsti Westerlund, Vega Exp., IV, 1887, p. 168. 

 Type locality: Aulatsivik, West Greenland. 



Planorbis occidentalis Cooper. 



Planorbis occidentalis Cooper, Pr. Cal. Acad. Sci., IV, 1870, p. 99. 

 Type locality: Not given. Range: Washington Terr, to San Jose, Cal. 



See trivolvis. Is the mature form of tuuicns according to Cooper (26, 

 p. 89). 



Planorbis opercularis Gould. 



Planorbis Icnticularis Sowerby, Con. Icon., Planorbis, 1876, Sp. no, pi. 13, 

 fig. no. 

 Includes plamdatus Cooper, centcrvillcnsis Tryon and multilincalus Van. 

 {oregoncnsis Van.) as varieties according to Dall (32, p. 92), with callio- 

 glyptns Van. as a synonym of planulatns. 



Planorbis opercularis multilineatus Vanatta. 



Planorbis opercularis oregonensis Vanatta, Naut.. IX, 1895, p. 54; no}i 



Tryon, 1865. 

 Planorbis opercularis nudtilineatus Vanatta, Naut., XIII, 1899, p. 48. 

 Type locality : Salem and Portland, Oregon. 



