54 HELICID &. 
Buirminus, Ehrenb., 1831. 
Distr.—350 sp. Old world. 
Shell solid, rimate, oblong-conic or fusiformly cylindrical, 
apex horny, rather obtuse, last whorl shorter than the spire; 
aperture small, obliquely oval; peristome straight, labiate within, 
simple or with teeth, right margin rather expanded, the colu- 
mellar reflexed and patulous. 
Animal similar to Bulimus. Jaw arcuated, finely longitudinally 
striate ; dentition like Helix. 
Petreus, Albers, 1850. Shell oblong-conical or subeylin- 
drical; whorls 6-8; aperture oval or oblong-oval; columella 
folded ; peristome thick, sometimes reflected, the extremities 
approaching, usually united by a callus. B. labrosus, Oliv. (xcix, 
63. 382 sp. Greece, Asia Minor, Turkestan, Arabia, E. Africa, 
India. 
Ena, Gray, 1840. (Merdigerus, Albers, 1850. Peristoma, 
Kryn., 1833. Napzeus, Albers, 1850.) Shell oval-oblong or 
subeylindrical; whorls 7—9, the last about half the total length ; 
aperture oval; peristome labiate within; columellar lip dilated. 
B. badiosus, Fer. (xcix, 64). 80 sp. Warm regions of the eastern 
hemisphere. 
Leucochiloides, Pfr., 1878. B. cenopicta, Hutton (xcix, 65). 
10 sp. India, Arabia, Senegal, etc. 
Jylindrus, Fitz., 1833. £8. obtusus, Drap. Austrian Alps. 
Medea, Boettger, 1883. Ovately conical, profoundly rimate, 
thin, shining; white or corneous, sometimes with a median fus- 
cous zone; whorls spirally lineolated, the last rounded at base ; 
aperture large, with remote margins, sometimes joined by a slight 
callus. B. Raddei, Kobelt. Caucasus. 
Pupoides, Pfr., 1854. B.marginatus,Say. Tsp. United States, 
West Indies, Mazatlan. 
Mastus, Beck, 1837. Shell cylindrical, subpupiform, subper- 
forate, apex obtuse; whorls numerous; aperture small, rounded- 
oval; columella short, straight, peristome labiate within. J. 
polygyratus, Reeve (xcix, 66. 11 sp. India, Zanzibar, ete. 
Zebrina, Held, 1837. (Brephulus, Beck [part], 1837. Buli- 
mulus, Risso, 1826. Adams, 1855.) Shell solid, rimately per- 
forated, oblong-conic or fusiformly cylindrical, apex horny, 
rather obtuse, last whorl shorter than the spire; aperture small, 
obliquely oval; peristome straight, labiate within, dentate, right 
margin rather expanded, the columellar reflexed and patulous. 
B. fasciolatus, Fer. (xcix, 67). B. Tournefortianus, Fer. (xcix, 
68). 386 sp. Hastern Europe, W. Asia. 
Chondrula, Beck, 1837. (Chondrus, Cuv., 1817. Jaminia, 
Risso, 1826. Gonodon, Held, 1837. Eucore, Agassiz, 1837. 
Mirus, Albers, 1850.) Shell rimate, ovate-oblong, apex acumi- 
nated; whorls 7-9, the last nearly one-third of the length; 
