195 



culum, slightly concave, crossed horizontally by 5 lamellae, labial side 

 plaited vertically. 



Height 0-068, greatest breadth 0-086, least breadth 0-0/3. 



Named in compliment to Josiah Alder, Esq., of Newcastle. 



Lindsleya Bridgesiana, Chitty. 



Hab. Bodle's Pen Wood (high road to Clarendon), St. Dorothy. 



Form, globose-conic. Colour, very pale horn. Sculpture, 19 

 strongly raised spiral carinse ; on the upper whorls 6. Spire, mode- 

 rately elevated, with rather concave outlines. Whorls, 4|, mode- 

 rately rounded, with a moderate suture. Aperture, semicircular, 

 very slightly expanded above, more so below. Labrum, scarcely de- 

 tached from body-whorl, slightly produced above, pectinated and 

 scolloped bluntly by about 1 5 of the carinas. Labium, straight, ex- 

 cept a slight curve below ; moderately detached from the body-whorl, 

 rather below the plane of the labrum in lower end. Umbilicus, deep. 

 Labral lamella, rather produced at its junction with the labrum, mo- 

 derately broad round the umbilicus. Operculum, moderately con- 

 cave, a very few coarse granulations, with 8 or 10 very short raised 

 lamellae converging to, but not reaching, the centre, on the labral 

 side ; a linguiform sharp projection overlapping the lower extremity 

 of the labium. 



Height 0-06, greatest breadth 0-076, least breadth 0-063. 



Named in compliment to Thomas Bridges, Esq., an able zoologi- 

 cal and botanical collector, particularly in Chili and other parts of 

 South America. 



Lindsleya Salleana, Chitty. 



Hab. New Forest, Manchester (unique). 



Form, globose-conic. Colour, '. Sculpture, 12 strong spiral 



carinas, 2 fine in each interspace and 3 less strong round the umbi- 

 licus : on the upper whorls 4 corresponding fine ones. Spire, well- 

 elevated, with rather concave outlines. Whorls, 4f, well-rounded, 

 with a deep suture. Aperture, slightly expanded above, more so 

 below, scarcely detached from last whorl, more than a semicircle. 

 Labrum, scarcely produced from body -whorl, not produced above, 

 very slightly reflexed and thickened, coarsely pectinated by the 

 strong carinas. Labium, moderately detached from body-whorl, 

 slightly curved throughout, on a plane with labrum. Umbilicus, 

 broad and moderately deep. Labral lamella, much produced at its 

 junction with labrum, below, sharp, and dipping abruptly into the 

 umbilicus. Operculum, ? 



Height 0-079, greatest breadth 0-092, least breadth 0'073. 



Named in compliment to M. Auguste Salle, an excellent zoolo- 

 gical collector. 



Lindsleya Arthuriana, Chitty. 



Hab. John Crow Hill, Portland. 



Form, globose-conic. Colour, light yellow. Sculpture, 31 raised 

 spiral carinas, not quite equidistant ; on the upper whorls 7. Spire, 



