336 Zoological Society. 



fascid sjjirali fusco-purpured cinctd ; anfractibus 14, ultimo^ 

 longitudinis subtequante, bast fusco-purpureo ; columelld subrectd, 

 albidd ; peristoma simplex, acutum ; margine externa superni arcu- 

 ate ; aperturd ovali-oblongd. 

 Long. 19, diain. 4 mill. ; apert. 3 mill, longa, 2 lata. 

 Chatham Island, Gelepagos. 



This beautiful species strikingly resembles a marine Cliemnitzia. 

 It is very distinct from any known Bulimus, but has affinities with 

 B. terebralis, B. colutnellaris, and B. clansilioides. 



Bulimus fimbriatus. Bui. testd imperforatd, subuliformi, tenui, 

 costis longitudinalibus subarcuatis, lineis confertis parallelis in 

 interstitiis costartim sculptd, rufo-fuscd, suturd impressd ; an- 

 fractus 7-8, tumidi, ultimus ^ longitudinis vix superans, infra 

 medium obsolete carinatus ; colmyiella subsimplex, ad basini aper- 

 turee unguium formans ; apertura subovalis ; peristoma simplex. 



Long. 9, diam. 2 mill. ; apert. 2 mill, longa, 1 lata. 



In a box of shells labeled "Panama." The nearest ally of this 

 very curious shell is the Bulimus gracillimus of Pfeiifer, from Cuba. 



Bulimus achatellinus. Bui. testd perforata, umbilico parvo, 

 conicd, obsolete striatd, nitiduld, flavidd, fusco-fasciatd ; suturd 

 cingulatd, crenulatd, albidd; anfractibus 7—8 convexiusculis, ulti- 

 mo vix Y longitudinis eequante ; apertura semiovalis, peristoma 

 rectum, simplex, acutum ; columella obsolete contorta, margine 

 columellari reflexo, perforationem semitegente. 

 Long. 19, diam. 10 mill. ; apert. 5 mill, longa, 4 lata. 

 This shell is from Chatham Island, Gelepagos ; it is unlike any 

 other known Bulimus, and its characters distinctly indicate affinity 

 with the Achatinellince. 



SucciNEA cingulata. S. testd oblongo-ovatd, vix obliqud, soli- 

 duld, striatd, nitiduld, fulvo-succined, sape spiraliter albo-Uneatd ; 

 spird exsertd, obtusd ; anfractus 4, convexiusculi, ultimus § longi- 

 tudinis aquans ; aperturd elongato-ovatd, superne acutd, basi ob- 

 liqui pone axin recedente ; columelld arcuatd. 

 Long. 12, lat. 6 mill. ; apert. 7 mill, longa, medio 3 lata. 

 This Succinea is distinct from any recorded by Pfeiffer. It is said 

 to come from Mazatlan. The very fine white spiral lines are not 

 always clearly marked in colour ; they correspond with lines of deeper 

 depression at intervals of the striae of growth. 



Cyclostoma purum. C. testd orbiculari, depressd, albd, niti- 

 duld, spird elevatiusculd, luteold ; anfractibus sex, rotundatis, 

 spiraliter sulcatis, sulcis numerosis, transverse striatis ; aper- 

 turd subcirculari, obliqud, peritremate simplici ; umbilico maxima ; 

 operculo ? 



Diam. 48, alt. 17 mill. 



Very near C. Cumingii, a species described by Mr. G. Sowerby 

 from the island of Tumaco. 



