g6 Bryant WAi,Kr;R 



Pi^ANORBis ANTROSus portage;nsis Baker. 



Planorbis hicarinatus portagensis Baker, Naut., XXII, 1908, p. 45 ; Walker, 



Naut., 1909, XXIII, p. 8, pi. I, fig. 9. 

 Type locality : Portage Lake, Aroostook Co., Me. 



Pl.ANORBIS ANTROSUS ROYALENSIS Walker. 



Planorbis hicarinaius royalensis Walker, Naut., XXIII, 1909, p. 9, pi. I, 



fig. II. 

 Type locality: Siskowit Take, Isle Royale, Mich. 



Planorbis antrosus striatus Baker. 



Planorbis bicarinatus striatus Baker, Naut., XV, 1902, p. 120; Tr. Acad. 



Sci. St. Louis, 1906, XVI, p. 9, pi. I, fig. II. 

 Type locality: Coldspring Park, Milwaukee, Wis. Also recent. 

 See Walker 151a, p. 7. 



Planorbis antrosus unicarinatus Haldeman. 



Planorbis bicarinatus unicarinatus Haldeman, Mon., 1844, p. 7; Vv'alker, 



Naut, XXTII, 1909, p. 3, pi. 1, fig. 6-8. 

 Type locality : vSchuylkill River, Pa. 



Planorbis arcticus Moller. 



Planorbis arcticus M511er, Index Moll. Gronl., 1842, p. 5'; Morch, Am. ]. 



of Con., 1868, IV, p. 32, pi. 4, fig. 9. 

 Type locality : Kudsuk, Greenland. Also Fort Chimo, Ungava, Labrador. 



Planorbis arizgniJnsis Pilsbry and Ferriss. 



Planorbis filocinctus Pilsbry and Ferriss, Pr. A. N. S. P., 1906, p. 165, pi. 



IX, figs. 1-3, not of Sandberger. 

 Planorbis arisonensis Pilsbry and Ferriss, Pr. A. N. S. P., 191 5, p. 390. 

 Type locality : San Pedro River, Benson, Ariz. 



Planorbis eillingsi Lea. 



Planorbis billingsi Lea, Pr. A. N. S. P., 1864. p. iii; Jour. A. N. S. P., 

 1866, VI, p. 15, pk 23, fig. 72; Obs., 1866, XI, p. 115, pi. 23, fig. 72. 

 Type locality : Ottawa River, Canada. See parvus. 



Planorbis callioglyptus Vanatta. 



Planorbis callioglyptus Vanatta, Naut., IX, 1895, p. 54. 

 Type locality : Freeport, Wash. 



Is opercularis planulatns Cooper according to Dall (32, p. 92). 



