The Hon. E. Chitty on the Stoastomidie. 215 



LlNDSLEYA BOISSIERIANA, Chitty. 



Hab. New Forest, Manchester. 



Form, globose-conic. Colour, pale horn. Sculpture, striae of 

 growth visible : 1 1 prominent, not very strong, spiral carinse, with 

 between the 1st and 'Jnd, '2 finer carinse ; between 2nd and 3rd and 

 3rd and 4th, I fine ; between 4th and 12th, 2 fine ; beyond the 12th, 

 5 or 6 very fine, round the umbilicus : on the upper whorls .5 strong, 

 with intermediate fine. Spire, well elevated, with slightly convex 

 outlines. IVIiorls, .">, well rounded, with a deep suture. Aperture, 

 more than a semicircle, moderately expanded and slightly deflected 

 below. Labntm, but slightly separated or produced from the body- 

 whorl, well pectinated by the strong carinse. Labium, slightly de- 

 tached from body-whorl, on a plane with labrum above , slightly 

 lower below, moderately curved to the right. Umbilicus, deej) and 

 narfow. Labral lamella, rather produced at junction with labrum, 

 narrow below. Operculum, slightly concave, five horizontal lamellae 

 across it, strongest in the middle, fine granulations, a linguiform 

 sharp projection overlapping the labium. 



Height U-0t)4, greatest breadth 0-U8.3, least breadth O'OGZ. 



Named in compliment to M. Edward Boissier, of Geneva, the 

 eminent naturalist. 



LlNDSLEYA Gaskoiniana, Chitty. 



Hab. Near Ashley Hjill, Trelawny. 



Form, globose-conic. Colour, white. Sculpture, 14 strong spiral 

 carinae, with 2 fine in each interspace ; on the upper whorls ."), with 

 fine ones intervening. Spire, well elevated, with straight outlines. 

 Whorls, 4^, with a moderate suture. Aperture, more than a semi- 

 circle, subelliptical. Labrum, detached from the body-whorl, pro- 

 duced moderately above, very strongly pectinated by about 13 points, 

 slightly expanded, reflected, and depressed below. Labium, slightly 

 detached from the body-whorl, curved to the left above, and more 

 so to the right below. Umbilicus, shallow and narrow, partially 

 hidden by the gracefully curved but slightly projecting labral lamella. 

 Operculum, very slightly concave, with a few coarse granulations, 

 overlapping the labium on the labial side. 



Height 0-004, greatest breadth 0-084, least breadth 0-064. 



Named in compliment to J. S. Gaskoin, Esq., a writer on con- 

 chology. 



LlNDSLEYA Newcombiana, Chitty. 



Hab. Clarendon Mountains (damaged, unitpie). 



Form, globose-conic. Colour, ? Sculpture, 18 strong 



rounded spiral carinse, with 2 finer intervening at the periphery ; on 

 the upper whorls 5. Strise of growth visible. Spire, well elevated, 

 with rather concave outlines. TThorls, ."), moderately rounded, with 

 a well-impressed suture. Aperture, semicircular, scarcely detached 

 from body-whorl, not expanded or depressed, except slightly below. 

 Labrum, very little produced above, pectinated by all the strong 

 lines. Labium, well detached from body-whorl, slightly curved 



