498 H. A. Pilsbry — Air-breathing Mollusks of the Bermudas. 



Pupa (Bifldaria) jamaicensis C. B. Ad. 



Plate LXII, FiauBE 7. 



Described as Jamaican, but probably occurs throughout the 

 Greater Antilles. It differs from P. servilis in having the middle 

 tooth of the outer lip situated decidedly deeper than its fellows, 

 not prominent as in servilis. There is a more or less developed 

 ridge or crest behind the outer lip. Alt. 2.3™™. 



Pupa barbadensis Pfr. has been reported by Bland from Ber- 

 muda, but specimens so labelled in the collection of the Acad. Nat. 

 Sci., Phila., prove to be jamaicensis. 



Pupa (Bifldaria) rupicola Say. 



Plate LXII, Figure 8. 



Shell resembling P. servilis in size and form, perforate, pale 

 brownish corneous, striatulate, composed of fully 5 convex whorls, 

 those above tapering to a very obtuse apex ; the last whorl widest, 

 expanding to form a narrow whitish crest very close behind the lip. 

 Aperture oval-rounded, obstructed by 5 denticles : the parietal 

 lamella with bilobed crest, but with no other indication of its com- 

 posite structure ; columellar lamella strong, entering ; sub-columellar 

 very small, short, low, and well immersed ; two palatal plicae 

 immersed beyond the position of the external crest, the upper one 

 very small, the lower deeper immersed, and slender. Outer lip 

 expanded, enormously thickened within by a white callus or flange, 

 which is weakly emarginate above, and a little grooved on its flat- 

 tened face. 



Alt. 2.4 ; diam. 1 ; longest axis of aperture .84™™. 



Bermuda. This species was taken by Prof. Heilprin in 1888. It 

 differs from the allied forms chiefly in the conspicuous thickening of 

 the peristome by a white internal callus or flange. The same form 

 occurs in Cuba and Florida, though there it has a less thickened lip. 

 I have considered it well to figure and redescribe Say's species 

 because the P. rupicola of Binney's works is P. procera Gld. 



Pupoides marginatus (Say). 



Plate LXII, Figure 16. 



Recorded under various names by Bland and others. Specimens 

 taken by Prof. Verrill's party are practically typical. It is the 

 Pupafallaxoi most American writers. Recorded by Jones, 1876, 

 as rare. 



Bailey Bay in field under stones. 



