iULIMUS.— Plati: XXI. 



Iliih. ^i. KIciia and Isir of I'lata, West Columbia (uiuli-r 

 stones, and buried at the roots of bushes) ; Cuming. 

 Extremely simple in form and colouring. 



Species 133. (Mus. Cuming.) 



IU1.IMUS LNicoLOR. Bui. testa oblmgd, subjiyramidaU, 

 iimiilicatd, anfraclUiiis sex, iuhrotundis, coticetitrkc 

 miiiiitMiime rude drialin, lain simplici ; conied, pel- 

 liicidd. 



The iNiroLOLiiED Bulimus. Shell oblong, somewhat 

 pyramidal, umbilicated, whorls six iu number, some- 

 what rounded, concentrically very minutely rudely 

 striated, lip simple ; homy, transparent . 



SowEUBY, Pro. Zool. Soc., 1833, p. 73. 



Ilab. Island of Perico, Bay of Panama (on dead leaves) : 

 Cuming. 

 Very similar in form and general character to the 



K. irniiKlitcem and Paiiaiiiemk, and found 111 nearly the 



same locality. 



Species 134. (Mus. Cuming.) 

 Bllisils cokneus. Bui. testa ovatd, subveiitricosd, um- 



bi/icatd, anfractibm quinque ad sex, rotundaiis, lavl- 



bus, aul minutissime slruitis, labro smplici: conied, 



pellucidd. 

 The hokxv Bulimus. Shell ovate, sonu'what veii- 



tricosc, umbilicated, whorls five to six in imnibcr, 



rounded, smooth or verj' minutely striated, li]) simple; 



iiorny, transparent. 

 Sowerby, Pro. Zool. Soc, 1833, p. 37. 

 Jhb. Real Llejos, Central America (under decayed grass) ; 



Cuming. 

 A simple transparent horny shell, the whorls licing 

 somewhat rounded. 



Species 135. (Mus. Cuming.) 



l?rLiMi s Jacobi. Bui. testd ovatd, subacuminatd, amplUer 

 umhilicald, aiifractibus subrotundis, lavibus, columella 

 supra umbilicmn partim expansd, aperlurd parviusculd, 

 labro .w/ipllci ; corneo-fuscescente. 



The Jacob Bulimus. Shell ovate, somewhat aeuminated, 

 largely umbilicated, whorls rather rounded, smooth, 

 columella partially expanded over the umbilicus, 

 aperture rather small, lip simple; pale horny brown. 



Sowerby, Pro. Zool. Soc, 1833, p. 7-i. 



Hub. Jacob Island, Gallapagos ; Cuming. 



Chiefly distinguished from the last species by its large 

 umbilicus, which is not seen in the figure on account of 

 its being partially overlaid by the columellar lip. 



eeies 136. (Mus. Cuming.) 



Bulimus Darwinii. BuLteatd snhgloboao-omtd, tenui- 

 culd, iiijlutd, muh'iVivnld. aiifractibus sex, mperne sub- 

 ani/ulatis, loiujlliidhudUi-r nuispicue rugatis, intersiitiis 

 corrugalo-striatk, culumclld mbtortd, tuberculis duobus 

 callos'm prominentibus armatd, aperturd subquadrato- 

 ovali, labro simplici ; intus extusque Jiclili-brumied. 



Darwin's Bulimus. Shell somewhat globosely ovate, 

 rather thin, inllated, umbilicated, whorls six in num- 

 ber, slightly angulatcd round the upper pai-t, longi- 

 tiulinally conspicuously wrinkled, the interstices being 

 transversely corrugately striated, columella slightly 

 twisted, and armed with two prominent callous tu- 

 bercles, aperture somewhat squarely oval, lip simple, 

 earthy brown vnthin and without. 



Pfeiffeh, Pro. Zool. Soc, 1846, p. 29. 



Hah. Gallapagos Islands (on bushes) ; Darwin. 



It will be observed on comparing this shell with the 

 B. rugiferu.s and sculpturatus, that a uniform peculiarity 

 of wrinkled scvdpture prevails in each species ; the present 

 is chiefly distinguished by its globose form and by the 

 callosities on the columella. 



