BrLIMUS.— Plate XXXV. 



The ravine-ixhabiting Bilimis. Shell obloug-ovate, 

 whorls somewhat ventricose, longitudinally striated, 

 and peculiarly very finely marked besides with short 

 impressed strife, minutely granulated and radiately 

 ridged towards the apex, columella scarcely twisted, 

 lip reflected; livid brown, longitudinally obscurely 

 banded, covered with a rather thin horny epidermis, 

 lip white. 

 D'Okbigny, Voy. dans I'Amer. Mcrid. Moll. p. 303. 

 Halj. Cochabamba, Bolivia (in deep ravines at the base of 

 the snowy peaks of the Cordilleras) ; D'Orbigny. 

 Intermediate, in a manner, between the B. wa.viMus and 

 ovafus, of smaller size, and apparently distinct. In the 

 si)ecimen here figured from Mr. Cuming's collection, the 

 surface is curiously marked by numerous rows of short 

 longitudinal hollowed stria ; it is also encircled by a couple 

 of scratched grooves, but these are evidently the result of 

 accident. 



Species 209. (Mus. Cuming.) 



BULIMUS GRANULOSUS. £id. testd oblo7ii/u-ovaii1, an- 

 fractibus ventricosk, longitudinaliter rude striatis, mi- 

 dique mhiute gramilatis, prope apiccm, snlolscure 

 radiatim, liraiis, columelld subcouiortd, labro reflexo ; 

 luteo-brimnescente, epidermide temdculd indutd, colu- 

 melld labroque pallide roseis, aperturee fame cceruleo- 

 albicante. 

 The granulous Bulimus. Shell oblong-ovate, whorls 

 ventricose, longitudinally rudely striated, minutely 

 granulated throughout, somewhat obscurely radiately 

 ridged near the apex, columella somewhat twisted, 

 lip reflected ; yellowish brown, covered with a thin 

 epidermis, lip and columella pale rose, interior of the 

 apei'ture bluish white. 

 Hdix granuhsa, Hang, Descr. eoqudles terrestres, p. 49. 



pi. 3. 

 Hnb. Brazil. 



Ii is much to be feared whether this is not truly a 

 \ ariety of the B. maim. The typical difterences are as 

 oUows ; — in form the B. yrauulusus is of a less shortened 

 uraid growth than the B. ovaliis, and in sculpture, it is 

 more )iromincntly granulated throughout, whilst the ra- 

 iliiitcil ridges about the ajjcx are more obscure ; it is. 



moreover, of a lighter tint of colour, and varies considerably 

 in the nature of the epidermis, which in this species is 

 slight and fibrous, but in the B. ovatus, is thick, horny, and 

 shining. 



Species 310. (Mus. Cuming.) 

 Bulimus oblongxjs. Bui. testa oblongo-ovatd, vix umbi- 

 licatd, nunc subampld, tenuiculd, ventricosd, nunc par- 

 viore, crassd, ponderosd, arifractibus convexis, plus 

 i/iinusve costwlato-striatis, labro reflexo ; fulvo-spadiced, 

 columelld labroque intense roseis. 

 TiiE OBLONG Bulimus. Shell oblong-ovate, scarcely 

 \nnbibcated, sometimes rather large, thin, and ven- 

 tricose, sometimes smaller, thick, and ponderous, 

 whorls convex, more or less sculptured with rib-like 

 stri:e, lip reflected ; fulvous-bay, lip and columella 

 deep rose. 

 Hdix oblonga, MuUer, A'erm. vol. ii. p. 8G. 



Bulimus luemasioma, Scopob, Lamarck. 

 Hab. Eastern coast of South America. 



This well-known species inhabits a wide range of 

 country, and varies greatly in size and substance according 

 to the local conditions of climate and vegetation, at one 

 time large and ventricose like the specimen selected for 

 illustration, at another smaller, thick, and ponderous, with 

 the lip not unfi-equently thickened to an extent truly 

 remarkable. 



M. D'Orbigny has some curious remarks on the habits 

 and age of this species. " The Bulimus oblongus," says 

 this intelligent traveller and naturalist, " buries itself 

 deeply in the earth during the dry season, and comes forth 

 at the time of the rains. Towards the close of the rainy 

 season, it deposits its cretaceous eggs in the earth, and 

 the young escape from them during the first rains which 

 follow." The author then goes on to describe that about 

 two or three yeai's is occupied in the formation of the 

 shell, when, having arrived at the age of maturity, the lip 

 is reflected, and at a more advanced stage becomes more 

 or less thickened according to cii'cumstances. After an 

 examination of what he considers to be annual marks of 

 increase of growth, Mr. D'Orbigny arrives at the conclu- 

 sion that the Bulimus obloiigtis lives for a period of about 

 ten years. 



