220 Zoological Society : — 



Named in compliment to T. Vernon Wollaston, Esq., M.A., so 

 well known for his natural-history researches in Madeira. 



Genus VIII. Blandia, Chitty. 

 Shell subdiscoidal, not prominently sculptured. 



Blandia Blandiana, Chitty. 



See Stoastoma Blandianumy Ad. Mon. Stoast. Adams, 1849, p. 6 ; 

 Cat. Phan. p. 234. 



Hab. Peace River, Manchester. 



Blandia Jeffreysiana, Chitty. 



Hab. Roaring River, Westmoreland. 



Form, subdiscoidal. Colour, pale yellow. Sculpture, 22 fine, 

 distant and nearly equidistant spiral carinee, 5 interspersed being 

 rather stronger ; carinae finer behind the aperture : on the upper 

 whorls 6. Spire, very little elevated, with convex outlines. Whorls, 

 3^, moderately rounded, with a slight suture. Aperture, constricted 

 at a distance behind labrum, and widely expanded and cupping in- 

 wards at the labium, rather flattened above. Labrum, moderately 

 produced above, treble in the upper part, broadly but not deeply 

 scolloped, and pectinated by the 5 stronger carinae, much thickened, 

 white and shining. Labium, thickened and much reflected to the 

 left at its edge, curved to the right below, widely detached from body- 

 whorl, much below the plane of labrum. Umbilicus, very deep and 

 broad. Labral lamella, rather strong. Operculum, very concave, 

 margined with a broad convexly raised ridge something like Wilkin- 

 soncea Schomburgkiana, with two deep, plainly- visible, indented 

 grooves on the labial side ; .5 sharp diagonal raised lines crossing 

 from right above to left below on the labral side of the hollow. 



Height 0-04, greatest breadth 0063, least breadth 0047. 



Named in compliment to J. Gwyn Jeffreys, Esq., late of Swansea, 

 now of London, a zealous conchologist and possessor of the finest 

 British collection. 



Blandia Bairdiana, Chitty. 



Hab. Yallahs Hill. 



Form, subdiscoidal. Colour, very pale horn or pure white. 

 Sculpture, about 30 or 40 spiral carinse, almost obsolete, scarcely 

 visible under a l:J-inch microscope, about 5 being rather more sharp 

 than the rest; on the upper whorls about /. Spire, very slightly 

 elevated, with rather concave outlines. Whorls, 3^, moderately 

 rounded, with a slight suture ; last whorl rather flattened at the peri- 

 phery. Aperture, semielliptical, very much produced from the 

 body- whorl, rather depressed above, but elegantly expanded through- 

 out. Labrum, very much produced above, joining the body-whorl 

 in a very graceful serpentine curving lamella (by which the shell 

 may be distinguished), much thickened and reflected. Labium , mo- 



