BULIMUS 



Species 4SU. (Mus. Cuming.) 



BuLiMUS ORYZA, Bid. testa cylindraceo-turritd, minute 

 umbilicatd, mtfractibus octo, rotundatis, longitudinaliter 

 striatis, spirce stituris profimdis, columella sulreftexd, 

 aperturd minmd, suborbiculari, labro simpHci ; vires- 

 cente-albd, vitred. 

 The rice-grain Bdlimhs. Shell cylindi-ically turreted, 

 miuutely umbilicated, whorls eight in number, round- 

 ed, longitudinally striated, sutures of the spii-e deep, 

 columella slightly reflected, aperture very small, 

 nearly orbicular, lip simple ; greenish white, glassy. 

 Bruguieke, Encyc. Meth. vers, vol. i. p. 333. 

 Hab. Brazd. 



The shell here figured agrees with the description of 

 this species given by Deshayes (Lamarck, Anim. sans 

 vert., vol. viii. p. 263), but not with Dr. Pfeiifer's diag- 

 nose, which describes a shell of cancellated sculpture, 

 composed of five whorls only. 



Species 481. (Mus. Cuming.) 



Bdlimus Tuckeri. Bui. testa subulato-turritd, mitmte 

 wnibiUcatd, anfractibus novem, convexiusciilis, longitu- 

 dinaUler striatis, spirce suturis impressis, columelld sub- 

 oblique recedente, tetmiter rejlexd, aperturd minutd, 

 labro simplici ; pallide corned, pellucidd. 



Ti'cker's Bulimus. Shell subulately turreted, minutely 

 umbilicated, whorls nine in number, rather convex, 

 longitudinally striated, sutures of the spire impressed, 

 columella somewhat obliquely receding, finely re- 

 flected, aperture minute, Up simple ; pale horn, 

 transparent. 



Pfeiffer, Pro. Zool. Soc, 1846, p. 30. 



Hab. Hardy's Island,' Pacific Ocean; Tucker. 

 Chiefly distingmshed by its subidate form. 



Species 482. (Mus. Cuming.) 



BuLlJius bactekionides. Bui. testa elonyato-turriid, 

 cylindraced, adapicem obtusd, anfractibus octo ad novem, 

 subplano-coHvexis, lavilus, nitidis, suturis impressis, 

 columelld rectd, interdum leviter tnmcatd, aperturd 

 parvd ; lutescenie-corned, pellucidd. 



The staff-like Bulimus. Shell elongatcly turreted, 

 cylindrical, obtuse at the apex, whorls eight to uine 



ill number, rather flatly convex, smooth, shining, 

 sutures impressed, columeUa straight, sometimes 

 slightly truncated, apertm'c small ; yeUowish-hom, 

 transparent. 

 D'Orbigny, Voyage dans I'Amer. Merid. Moll., p. 260. 



pi. 29. f. J to 3. 

 Hab. Bolivia ; D'Orbigny. 



As an example of the little importance of the trunca- 

 tm'e of the columella as a generic character in the small 

 AchatuuB, it may be remarked that in this species the 

 columella is sometimes truncated and sometimes not. 



Species 4 S3, (ilus. Cuming.) 



Bulimus impressus. Bid. testa subulatd, anfractibus octo, 

 plano-convexis, politis, nitidis, lineis impressis obscuris 

 diMantibus longitudinaliter notati^, columelld temdter 

 rejlexd, subobUque recedente, aperturd parvd, oblongd ; 

 pellucido-corned, solidiusculd. 



The impressed Bulimus. Shell subulate, whorls eight 

 in number, flatly convex, polished, shining, longitu- 

 dinally marked with distant obscure impressed lines, 

 columella tliinly reflected, obliquely receding, aperture 

 small, oblong ; transparent horny, rather solid. 



Hab. ■? 



A rather stout polished horny shell, marked here and 



there with faintly impressed lines, distinct froni B. sub/itu, 



in which the whorls are more rounded. 



Species 484. (Mus. Cuming.) 



Bulimus Mimosarum. Bui. testd ci/Undraceo-turritd, 

 minute umbilicatd, apice acutd, anfractibus decern, an- 

 gustis, subrotuiidatis, lavigatis vel subtilissime oblique 

 striatis, columelld tenui, late rejlexd, appressd, aper- 

 turd parvd, labro simplici ; sordide alba. 



The Mimosa-inhabiting Bulimus. Shell cyUndrically 

 turreted, minutely umbilicated, apex sharp, whorls 

 ten in number, naiTOW, somewhat rounded, smooth, 

 or finely striated, columella thin, broadly reflected, 

 appressed, apertm-e small, lip simple ; dull white. 



D'Orbigny, Voy. dans I'Amer. Me'rid. Moll., p. 262. pi. 41. 

 f. 12-14. 



Hab. Bolivia; D'Orbigny. 



Found principally at the roots of thorny Mimosa trees. 



May, 1849. 



