T HE ANNA L S 



AND 



MAGAZINE OF NATURAL HISTORY. 



[SECOND SERIES.] 

 No. 108. DECEMBER 1856. 



XXXVl. — Xew Land Shells collected by E, L. Layard^ Esq., 

 and described by W. H. Benson^ Esq. 



The following shells were coilectcd by Mr. E. L. Layard at the 

 Cape of Good Hope, and on his route to that colony, at St. 

 Vincents, in the Cape de Verde Islands, and St. Helena. His 

 researches have added new localities for several species already 

 known, and he has furnished some interesting facts respecting 

 their habits. 



Bulimus arenicola, nobis, n. s. 



Testa vix perforata, trocbiformi, irregulariter subplicato-striata, 

 nitidula, albida, rufo-castaneo fasciata ; spira attenuato-conica, 

 sutura leviter impressa, apice acuto, castaneo ; anfractibus 6^ 

 subplanulatis, ultimo magno, diinidium testae efformante, acute 

 carinato, subtus couvexiusculo, fasciis duabus, altera suturali, 

 altera ad carinam, ornate ; apertura magna, subcpiadrato-rotuu- 

 data ; peristomate simplici, acuto, margiue cxterno infra ad peri- 

 phferiam angulato, columellari verticali arcuate, expansiusculo, 

 superne breviter appresso-reflexo, perforatioaem fere claudeute, 

 basali valde arcuate. 



Leug. 17, diam. 15 ; long, apcrt. 10, lat. 8|^ mill. ; diam. anfr. supra 

 aperturam ad carinam 1 1 mill. 



Hub. ad coUes arenosas prope sinum " \A'aterloo " dictum Caffrariae. 



Were it not for the evident affinity of this shell to the Natal 

 species, Bulimus sjjadiceus, Menke, I should have been inclined 

 to refer it to the genus Helix. JMr. Layard states that there is 

 a brown, bandless variety. It may be at once distinguished from 

 B. spadicciis h\ its higher and more slender spire, by the acute 

 carination of the last whorl, and by its imperfect j)erforation ; 

 the umbilicus in B. spadiceus being pervious, although narrow, 

 and merely hidden by the free dilatation of the columellar li{). 



Ann. <^- \\Iag. N. Hist. Ser. 2. Vol. xviii. 28 



