obliquo, dilatato, expanso, exter. verticali, recto, bruuneolabiato. 

 Long. 12, d. 4'/a mm. (7\irkestan). L. c. 1886. — Fornia 1) 

 minor, 1. 10, d. ^Va mm.. anfr. 8. (Anc.) 



Var. teres W. 1. c. : t. omnino cylindrica, apice in 

 conum breviss. contracto, fusca, anfr. 11, sut. obliqna; 1. 12, 

 d. 3'/2 mm. 



Var. fxiiaiisilabris W. 1. c. : t. cylindracea, apice 

 breve conico, rufobrunnea, ad ap. pallida, anfr. 9 — 10, sut. me- 

 dio subhorizontaH, infra valde descendente, ap. vix distorta, 

 ovato trigona, perist. expanso, albo, crasso, nitido, callo apert. 

 tuberculifero; 1. 11, d. S'/^ mm. 



Var. |»l«iii<*o!lis W. 1. c. : t. cylindrica, fusco-brun- 

 nea, anfr. 9, ult. postice longe planeque attenuatus, sut. medio 

 perobliqua, infra subhorizontali, ap. parum distorta, oblongo- 

 ovalis, albolabiata; 1. II, d. S'/'^ mm. 



Var. paciiycliila W. 1. c. : t. obesa, crassa bievisque, 

 forma 0. dolii, fusco-cornea, apice breviss. conico, anfr. 8— H'/^, 

 ult. postice convexus, basi subsaccatus, sut. fusco-marginata, 

 paullo obliqua, valde ad ap. ascendens, ap. marg. crassis; 1. 8 



— 8'/2, d. 3'/2~4 mm. 



B. ferghtaiiensis Kob. T. elongata, cylindrica, apice 

 conico, obtusato, leviss. striatula, ciuereo-albida, strigis castaneis 

 vividis, numerosis; anfr. 8, lentiss. crescentes, ult. penultirao 

 angustior; ap. vix excisa, perist. continuo, albo, incrassato, fere 

 undique refiexo. L. 13, d. 4, ap. 1. 4 mm. (Turania). Ic. f. 588. 



B. WJjreulzOWi Rosen. T. parva, perf., cylindrica, gra- 

 cilis, cornea strigis tenuibus albidis, nitida, apice obtuso; anfr. 

 7, lentiss. crescentes, superi convexi, sut. medio obliqua, albo- 

 marginata, ult. convexus, basi rotundatus; ap. parva, infra re- 

 cedens, marg. approximatis, exter. recto, tenui, ab insertione 

 curvato, colum. verticali, dilatato, reflexo. "L. T'/^, d. 2^/^, ap. 

 1. 2^^ mm." (Transcaspia, Gaudau). Congr. Int. Mosc. 1892. — 

 Forma 1) minor, t. cylindraceo-oblonga, anfr. 6'/2, 1. 6'/2, d. 2 mm; 

 2) major, cylindrica, anfr. 9, 1. 9, d. 2 mm. 



B. purUS W. T. longa, cylindrica, superne conica. Isevis, 

 alba, unicolor; anfr. 9 --10, supremi lente crescentes, convexiu- 

 sculi, tres inferi lati, planulati, ult. antice et postice longe len- 

 teque attenuatus, perist. callo conjuncto. L. 17, d. S'/^, ap. 1. 

 4 mm. (Persia). Binn.-Conch. Suppl. 1890 



Var. iiiiprobiij^ W, 1. : t. brunnescens, superne fortius 

 conica, atifr. penult. distincte altior, callus pariet. validus, 

 perist. crassius, marg. colum. magis curvatus; 1. 15, d. S'/» mm. 



B. albOCOStatuS W. T. periomphalo dilatato, cylindra- 

 cea, superne longe attenuato-conica, pallide brunnea. forte et 

 sat distanter costata (costse albfe, verticales); anfr. 10, lentiss. 

 crescentes. ult. parum major; ap. parva ('/g long. testse), marg. 



