136 BULIMULUS-ORTHOTOMIUM. 



notes by the writer, defining the natural groups of Bulimuli and 

 describing new forms, and finally a philosophic and well-considered 

 essay by Dall (Proc. U. S. Nat. Mus., 1896) discussing a portion of 

 the fauna. 



B. SUFFLATUS (Gould). PI. 18, figs. 38-44. 



Shell broadly ri mate-perforate, thin but solid, oval; white under 

 a pale yellowish cuticle, with occasional narrow oblique yellow-olive 

 streaks. Surface shining, with growth-wrinkles. Spire very short ; 

 whorls 5, CQnvex, the first very finely costulate, the last large, oval, 

 inflated. 



Aperture ovate, acuminate above, broadly rounded below, white 

 within ; peristome thin and acute, not expanded ; colurnellar mar- 

 gin broadly dilated above, white; columella concave, without fold. 



Alt. 28, diam. 18, alt. of aperture 17* mill. 



Alt. 20, diam. 14, alt. of aperture 12 mill. 



Alt. 36, diam. 21 mill. 



Lower California, from San Jose del Cabo to La Paz (Gabb, Bry- 

 ant) ; Sierra Laguna to 3000 ft. alt. (Eisen) ; El Taste Mts., 3200 

 ft. alt. ; El Chinche Mts., 2000 ft. alt. (var. chinchensis). 



Bulimulus vesicalis GOULD, Journ. Bost. Soc. N. H., vi, p. 375, pi. 

 14, f. 1 (October, 1853). PFR., Monogr., iv, p. 467. CPR., P. Z. S. 

 1856, p. 203. GABB, Amer. Journ. Conch., iii, p. 236, pi. 16, f. 6. 

 Not B. vesiealis Pfr. (March, 1853), see p. 69. Bulimulus sufflatus 

 GOULD, in W. G. BINNEY, Terr. Moll, iv, p. 25 ; Proc. Acad. Nat. Sci. 

 Phila., xi, 1859, p. 188. GOULD, Otia Conch., p. 184. PFR., Mon- 

 ogr., vi, p. 110. CROSSE, Journ. de Conchyl., 1871, p. 207. Bulim- 

 ulus (Mormus) sufflatus BINN. & BLD., Land and Freshwater 

 Sh. N. A., i, p. 206, f. 356. COOPER, Proc. Cal. Acad. (2), iii, p. 

 102. Bulimulus sufflatus BINN. & BLD., Amer. Journ. Conch., vi, 

 p. 209, pi. 9, f. 8, 13 (jaw and teeth). COOPER, 1. c., pp. 208, 212, 

 340, pi. 14, f. 6 var. insularis; iv, p. 140, pi. 5, f. 9, 11, with var. 

 chinchensis, f. 10. MARTENS, Biol. Cent. Amer. Moll., p. 244. 

 Bulimulus (Orthotomium, Globulinus) sufflatus CROSSE & FISCHER, 

 Moll. Terr, et Fluv. Mex, pp. 473, 475, 568, pi. 20, f. 23, 24, 25 ; 

 pi. 19, /. 17, 18 (jaw and teeth). Mormus sufflatus TRYON, Amer. 

 Journ. Conch., iii, p. 172, pi. 14, f. 6. Bulimus juarezi PFR., P. Z. 

 S., 1865, p. 832 ; Novit. Conch., p. 280, pi. 69, f. 1, 2 ; Monogr., vi, 

 p. 123. Bulimulus ( Orthotomium) sufflatus DALL, Proc. U. S. Nat. 

 Mus., xvi, 1893, p. 648, pi. 72, f. 9. STEARNS, Proc. U. S. Nat. 



