— 181 — 



1880 Strobila labyrinthica Strebel; Beitr. Mex. Land u. 



Süßw.-Conch. IV, p. 43, Taf. 4, Fig. 6, 

 Taf. 11, Fig. 2. 



1881 DeCamp; Shell hearingMoll.-Mchiganp. 6. 

 1885 — Binney; Manual of. Am. Land Shells in 



Bull. ü. S. Nat. Mus. No. 28, p. 263, 



Fig. 279—283. 

 1885 Dali; Proc. U. S. Nat. Mus. VIII, No. 17, 



p. 262. 

 1887 - Tryon; Manual of. Conch. III, p. 138, 



Taf. 29, Fig. 44—48. 

 1889 — Simpson; Proc. Davenport Ac. Nat. Sei. 



V, p. 66. 

 1889 — Pilsbry; Proc. Ac. Nat Sei. Philadelphia, 



p. 206. 

 1892 — Pilsbry; Proc. Ac. Nat. Sei. Philadelphia, 



p. 404. 



1892 — v. Martens; Land- a. Freshw. Moll, im 



Biol. Centr. Am. p. 173. 



1893 Strobilops — Pilsbryj; The Nautilus VII, p. 56. 

 1893 - Pleas; The, Nautilus VII, p. 69. 



1893 Strobila - Marshall; Rep. New York Mus. 47, p. 71. 



1894 - Prime; The Nautilus VIII, p. 70. 



1894 Strobilops Walker; Rev. Moll. Fauna Michigan 



p. 17. 

 1894 — Walker; Rev. of our pres. knowl. of. the. 



Moll. Fauna of Michigan, p. 17. 

 1894 — labyrinthicus Sterki ; Land- a. Fresw. Moll. 



New. Philadelphia, p. 5. 



1894 - — Sterki; Rep. Ohio State Ae. Sei. p. 3, (Sep.). 



1 895 - labyrinthica Nylander ; The Nautilus VII, p. 1 26. 

 1895 — Schick,; The Nautilus VIII, p. 136. 

 1897 - Pilsbry; The Nautilus XI, p. 108. 



1899 — Hanham; The Nautilus XIII, p. 2. 



1899 — — Rhoads; The Nautilus XIII, p. 46. 



1900 Strobila — Price; The Nautilus XIV, p. 76. 

 1905 Strobilops — Dali; Alaska Bd. XIII, Land- a. 



Freshw. Moll. p. 27, Fig. 



