STROBILOPS, CANADA AND UNITED STATES. 21 



Naut. VIII, p. 70 (Long Island, N. Y.).— Price, Naut. XIV, 

 p. 76 (Kentucky). 



StroMlops labyrinthica Pilsbrt, Proc. A. N. S. Phila. 1892, 

 p. 404; Naut. VII, p. 57.— Pleas, Naut. VII, p. 69 (Henry Co., 

 Ind.).— Walker, Naut. VII, p. 126; XI, p. 122 (Michigan).— 

 Nylander, Naut. VIII, p. 126; XIV, p. 103 (Aroostook Co., 

 Me.). — Schick, Naut. VIII, p. 137 (Philadelphia). — Smith, 

 Naut. XIII, p. 35 (Michigan).— Ferriss, Naut. XIV, p. 103 

 (Cove, Ark.).— CoLTON, Naut. XVII, p. 100 (Mt. Desert).— 

 Van Hyning, Naut. XVII, p. 131 (Des Moines, Iowa). — 

 K-HO.VDS, Naut. XVIII, p. 65 (Delaware). — Blaney, Naut. 

 XVIII, p. 46 (Sowards I., Me.).— D.vniels, Naut. XIX, p. 63 

 (Pleistocene, New Harmony, Ind.). — Hinkley, Naut. XX, p. 

 35 (Ala., Miss.); XXXIII, p. 14 (Dubois, 111.). — Wheat, 

 Naut. XX, p. 101 (Cayuga L.). — Jackson, Naut. XXI, p. 144 

 (North Haven, Me.). — F. C. Baker, Naut. XXIV, p. 69 

 (Unionville, Conn.) ; XXV, p. 67 (St. Lawrence R. islands) ; 



XXVIII, p. 10 (Michigan) ; Mollusca Chicago Area, Chicago 

 Acad. Sci. Bull. Ill, 1902, p. 225, f. 58-60 (jaw and teeth) ; 

 Life of the Pleistocene, Univ. Illinois BuU. XVII, 1920, p. 388 

 (Aftouian Pleistocene to Recent). — Wheeler, Naut. XXV, p. 

 124 (Ala.) ; XXXI, p. 114 (Clark Co., Ark.).— Sterki, Naut. 



XXIX, p. 123 (Geneva, 0.).— Vanatta, Naut. XXXIII, p. 97 

 (Maine). — Walker, 111. Cat. MoU. Michigan, 1906, p. 505, 

 figs. 116-118. — Dall, Alaska: Land and Fresh Water Mol- 

 lusks, Harriman Alaska Exped. XIII, 1905, p. 27, f. 7-9 (Car- 

 berry, Manitoba; Moose Factory; James Bay). — Wenz, 

 Nachrbl. D. M. Ges. 1916, p. 179.— Zetek, Trans. Illinois State 

 Acad. Sci. XI, 1918, p. 170 (near Urbana, in woods). 



StroMlops affinis Vanatta, Nautilus XXXIII, p. 97 (Se- 

 bago, Cumberland Co., Maine). 



Strohilops floridanus Vanatta, Naut. XXX, p. 72 ; XXXIII, 

 p. 68 (New Jersey). 



Strobila labyrinthica var. virgo Pilsbry, Nautilus VI, p. 94, 

 Dec. 1892 (Sebec Lake, Piscataquis Co., Me.). — S. virgo Sar- 

 gent, Nautilus IX, p. 89 (Clearwater Lake, Wright Co., 

 Minn.).— G. H. Clapp, Naut. XIV, p. 64 (Mt. Agamenticus, 

 Me.).— Berry, Naut. XXIV, p. 63 (Windemere, Waldo Co., 

 Me.).— ? Wheeler, Naut. XXXI, p. 114 (Arkadelphia, Ark.). 

 —Walker, 111. Cat. Moll. Michigan, 1906, p. 506, fig. 120 

 (abundant in northern Michigan; southward in Oakland, 

 .Saginaw and Kalamazoo counties) . — Sterki, Proc. Ohio State 

 Acad. Sci. IV, pt. 8, 1907, p. 378 (New Philadelphia, 0. ; 

 seems to prefer elevated and dry places, whereas ;S'. labyrin- 

 thica prefers damp places).- — Daniels, 27th Ann. Rep. Dept. 



