6^ Zoological Society. 



costatis, longitudinaliter creberrime et minutissime rugoso-stri- 

 atis, columella verticaliter reflexd, aperturd subquadratd, lahro 

 tenui, simplici; colore murino. 



Hab. Andes of Caxamarca, Peru ; W. Lobb. 



Very like a Clausilia iu form, and of a silken aspect, arising out of 

 the very close and minute development of longitudinal striae. 



2. BuLiMUS NIGROPILEATUS. Bul. testd acuminato-ovatd, sub- 

 ampliter umbilicatd, anfractibns septem, convexis, obtusb sub- 

 rugoso-striatis, columelld verticaliter reflexd, aperturd ovali, 

 labro simplici ; albidd, basin versus obsoleth fusco-fasciatd, apice 

 nigra. 



Hab. Chachapoyas, Alto Peru ; W. Lobb. 



It is probable, from the faintly-banded appearance of this shell, that 

 this is but the pale variety of a darker type. 



3. BuLiMUS FOVEOLATUS. Bul. testd oblongo-ovatd, tenuiculd, 

 subventricosd, haud umbilicatd, ad apicem obtusd, anfractibus 

 quinque ad sex, convexis, longitudinaliter obtuse plicato-striatis, 

 punctis oblongis spiraliter lineatim exsculptis, infra suturas pli- 

 cato-crenulatis, apicem versus peculiariter foveolatis, suturis 

 rudibus, anfractu ultimo oblique descendente, columelld latd, 

 depressiusculd, obliquh recedente, aperturd oblongo-ovali, labro 

 subincrassato, vix reflexo ; intense olivaceo-brunned, infra sutu- 

 ras pallidd unifasciatd, suturis albidis, columelld labroque cceru- 

 lescente-albis, apertures fauce iridescente-lilaced. 



Hab. Vitoe, near Sarma, Alto Peru; W. Lobb. 



This is the species which Dr. Pfeiffer has assigned to the Bulimus 

 Mahogani of Sowerby, Conch. lUustr. f. 5.9 ; a species of the B. rosa- 

 ceus or hcemastoma type, of which I can find no description or tidings. 



The species under consideration will be found, on comparison with 

 Sowerby' s figure, to be of a more oblong form, more acuminated at 

 the apex, and very peculiarly indented round the upper sutures, re- 

 minding one very much of the indentations in the shells of Phorus. 



4. Bulimus depstus. Bul. testd subacuminato-ovatd, compresse 

 umbilicatd, anfractibus septem, rotundatis, laevibus, supernb 

 depressiusculis, minuth plicato-crenulatis, columelld reflexd, 

 aperturd parviusculd, labro simplici, intus extusque ustulato- 

 fuscd, hie illic saturatiore-strigatd. 



Hab. Chachapoyas, Alto Peru ; "W. Lobb. 



A thin shell, approaching in form and colouring to the Bulimus 

 nux, from which it differs in being of lighter structure, and having a 

 more rounded aperture. 



5. Bulimus scitulus. Bul. testd subfusiformi-oblongd, vix um- 

 bilicatd, anfractibus octo, leviter convexis, Icevibus, columelld 

 parum reflexd, aperturd subangustd, labro simplici; albidd, 

 purpureo-ceeruleo tinctd, basin versus ferrugineo-rufd, lineis 

 subtilibus albis, irregulariter undulatis, creberrime longitudi- 

 naliter notatd. 



Hab. Chachapoyas, Alto Peru ; W. Lobb. • 



