Zoological Society. 289 



deep crimson ground. They approach nearest to the Tiirho pethola- 

 tus, differing, however, in a very remarkable degree in the charac- 

 ter of the painting above noted. The riband-like bands, which form 

 a never-failing peculiarity in that species, are wanting, and so also 

 is the green or yellow tinge of colour which runs round the colu- 

 mellar side of the mouth. 



Descriptions, by Dr. L. Pfeiffer, of some new species of Helicidce, 

 collected by Mr. Bridges in the northern parts of Chile, were then 

 read : — 



BuLiMus Bbidgesii. Bui. T. suhperforatd, oblongo-ovatd, apice 

 obtusd, tenui, pnllidc luteo-fulvescente, confertissimc et leviter de- 

 cussatd ; sutiird mediocri, maryinatd ; anfractibus 4 convcxiusculis, 

 ultimo spirant superunte ; aperturd ovali, intus nitide fulvidd ; peri- 

 stomate simpllce, late refiexo, intus atbo, marginibus callo junctis, 

 columetlari perforationem fere occultante. 



Long. 11^; diam. 5^ lin. 



From the town of Frierina (Huasco, Chile). Found under stones. 



BuLiMus PACHYCHiLus. Bul. T. subpcrfortttd, ovatd, apice obtusd, 

 crassd, albd, longitudinaliter striata, lineis confertissimis trans- 

 versis sub lente decussatd ; anfractibus 4| convexiusculis, ultimo f 

 longitudinis subaquante ; aperturd integrd, ovali, intiis albd ; peri- 

 stomate late incrassato, jjallide fulvescente, nitido, marginibus callo 

 crasso junctis. 



Long. 19^; diam. 11 lin. 



From La Questa de Arenas (Huasco, Chile) . Found buried in sand. 



BuLiMus RHODACME. Bul. T. perforata, ovato-oblongd, longitudi?ia- 

 liter striata, striis transversis obsoletis minutissime decussato- 

 subgranulatd, albd maculis et flammis ji^Hucidis rubellis ornatd, 

 apice obtuso roseo ; anfractibus 6 convexis, ultimo ^ longitudinis 

 subaquante ; aperturd oblongo-ovali ; peristomate simplice, recto 

 margine columellari reflexo. 



Long. 1\ ; diam. 2| lin. 



From the town of Frierina (Huasco, Chile). Found under small 

 Cacti. 



BuLiMus TEREBRALis. Bul. T. rimato-subpcrforatd, subulatd, lon- 

 gitudinaliter rugulosd, albidd, superne fusco-cccrulescente ; anfrac- 

 tibus 10^ planis, ultimo 1 longitudinis vix super ante, basi subcari- 

 nato ; columelld obsolete plicatd ; aperturd ovali intiis albd ; peri- 

 stomate simplice, margine dextro dilatato, columellari refiexiusculo , 

 superne carina affixo. 



Long. 10| ; diam. 2^ lin. 



From Coquimbo (Chile). Found on rocks and plants near the sea. 



SucciNEA ELEGANS. Suc. T. ovuto-oblongd, tenui pellucidd, Icevius- 

 culd, rubello- corned, strigis longitudinalibus , opacis, albis, rufo- 

 marginatis ornatd; anfractibus 5^ planiusculis, ultimo spiram 

 acutam vix superante ; aperturd ovali-oblongd, intiis nitidd, conco- 

 lore ; peristomate simplice, margine columellari vix calloso. 



Long. 18; diam. 8| lin. 



