SI 



The body wliorl is more than twice as long as all the rest to- 

 gether.— W. J. B. 



BuLiNUS GRANULOSUS. Bul. testd ovoto-pyramiilali, subpeUucidd, 

 J'usciit str'igis Jhsciisque interruptis castaneo-nigris varid ; an- 

 Jj-ndibus sex granulosis ; labro aciito : long. l-pV? lot. -p^ poll. 

 Hab. subterraneus ad Valparaiso et in montibus Conceptionis. — 

 W. J. B. 



BuLiNUs cACTivoRUs. Bill, testd Jiislformi-pyramidaU, albidd, 

 subpeUucidd, opalescente ; anfractibus sex, subventricosis , longi- 

 tudinaliter creberrime elevato-striatis ; spirce apice subnigro : 

 long, 't, l(it. -^ poll. 

 Hab. ad montem Christe in Columbia. — W. J. B. 

 BuLiNUs NiTiDUS. Bul. tcstdj'usiformi, subpeUucidd, nitide albidd, 

 strigis frcquentibus longitudinalibus castaneo^uscis varid; an- 

 Jractibtis sex, longitudinaliter striatis ; apice subnigro ; labro 

 acuta: long, li, lat. ^ poll. 

 Hab. in Peruvia. (Tumbez.) 



This species has somewhat of the opalescent character of the 

 preceding. In some of the old specimens there is a small blunt 

 tooth on the inner surface of the body whorl within the aperture 

 and just above the columella ; but this is by no means a constant 

 character. — W. J. B. 



BuLiNus TUANSLUCENS. BuL testd oblongo-pyvamidali, levissime 

 transversim striata, pallide Jlavd, valde peUucidd; anfractibus 

 quinque, subventricosis : long, l, lat. -g- poll. 

 Hab. in America Meridionali, arboribus adhdcrens. (King's and 



Saboga Islands, Bay of Panama.) 

 This elegant Bulinus, when in fine preservation, is so translucent 

 that the internal pillar and structure of the shell may be plainly 

 viewed through its glassy surface. Like many other transparent 

 shells, this species, when it has been long weathered or dead, becomes 

 of a white hue and much more opaque. — W. J. B. 



Bulinus guttatus. Bid. testd fusiformi, pellucidejiiscd, guttis 

 lineisque longitudinalibus albis varid ; aiifractibus sex ; apice 

 papiUari et quasi elephantino : long. -| ., lat. -I poll. 

 Hab. in Peruvia, (Cobija or Puerto De la Mar.) 

 The ternnnation of the spii'e in this pretty and transparent spe- 

 cies is somewhat abrupt, and the ivory-looking apex is almost as 

 papillary, and appears almost as opaque, as that of a Turbinella. — 

 W. J. B. 



Bulinus vittatus. Bul. testd pyramidali, albidd, subdiaphand, 

 vittis latisfuscis circumdatd, anfractibus septem, turgidis, longitu- 

 dinaliter levissime striatis ; labro acuto ; umbilico mediocri ; aper- 

 turd earned : long. l-rV> '«^« -rV poll. 

 Hab. in Peruvia. (Ilo.)— W. J. B. 



Bulinus Scalariformis. Bul. testd pyramidali, suhfuscd, an- 

 fractibus quinque, subturgidis, creberrime longitudinaliter cos- 

 tatis ; labro acuto ; nfnbilico magno : long. t^V> l(it- tV poll. 

 Hab. in Peruvia. (Ancon.) 

 Var. testa fusca, fasciis et lintis transversis albis. — W. J, B. 



