196 



well-elevated, with rather convex outlines. Whorls, 3frds, very 

 well rounded, with a deep suture, last whorl very globose. Aperture, 

 slightly and somewhat abruptly expanded, more than a semicircle, 

 subelliptical, slightly depressed above and expanded below. Labrum, 

 rounded into labium, more broadly below, very slightly produced 

 above, double, white, smooth, not pectinated. Labium, scarcely 

 detached from body -whorl, on a plane with labrum. Umbilicus, very 

 shallow, broad. Labral lamella, scarcely produced. Operculum, 

 slightly concave, very finely granulated in the centre. 



Height 0-049, greatest breadth 0'066, least breadth 0-054. 



Named in compliment to Arthur Adams, Esq., of London, the 

 conjoint author with his brother Henry Adams. 



This shell is like //. Albersiana, but differs in sculpture, number 

 of whorls and measurements. 



LlNDSLEYA GuTIEREZIANA, Chitty. 



Hab. New Hope, Westmoreland. 



Form, globose-conic. Colour, pale horn. Sculpture, 16 strong 

 spiral carinae, only about the periphery one fine intervening ; on the 

 upper whorls, 5. Spire, well-elevated, with straight outlines. Whorls, 

 5£, well-rounded, with a deep suture. Aperture, less than a semi- 

 circle, very slightly spreading, and very slightly deflected below. 

 Labrum, slightly separated from body-whorl, rather produced above, 

 in a broad notch, pectinated by about 15 of the strong carinae. La- 

 bium, well-detached from body-whorl, curved inwards, more so 

 below ; thickened and reflected in the centre and its lower end to- 

 wards the umbilicus. Labrum and labium continuous above ; labium 

 on a plane with labrum below. Umbilicus, deep. Labral lamella, 

 sharply produced as it leaves the labrum, becoming narrow and 

 abruptly lost in the umbilicus. Operculum, ? 



Height 0-084, greatest breadth 0-15, least breadth 0*082. 



Named in compliment to Sefior Don Nicolas Jose Gutierez, Curator 

 of the Museum at the Havanna. 



LlNDSLEYA OWENIANA, Chitty. 



Hab. Yallah's Hill. 



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

 rather inequidistant spiral carinae ; on the upper whorls 6. Striae 

 of growth visible. Spire, moderately elevated, with rather concave 

 outlines. Whorls, A\, well-rounded, with a deep suture. Aperture, 

 semicircular, rather flattened above, slightly expanded in the lower 

 two-thirds. Labrum, rather produced above, not reflected, thin, 

 strongly pectinated by spiral carinae. Labium, rather detached from 

 body-whorl, gradually curved to the right below. Umbilicus, ra- 

 ther deep and broad, slightly hidden by the labral lamella, which 

 is but little produced. Operculum, concave, finely granulated, with, 

 on the labral side extending half across, 5 horizontal raised lamellae 

 converging towards the umbilicus, the margins of which are covered 

 with fine granulations giving the appearance of serration ; lower 



