smith: land-shells of cukacoa, etc. 115 



The minute thread-like lines which cover the surface of the shell 

 are very oblique and extend even to the apical whorls. 



One specimen only was obtained. Allied to P. Beathiana, Poey, 

 from the Isle of Pines, but more finely sculptured, with less convex 

 whorls, a larger apex to the spire, a narrower body-whorl, and 

 differs in the reflexion of the columella. 



4. Cylindhella Raveni, Crosse. 

 Cylindrella Raveni, Crosse: Journ. de Conch., 1872, p. 157; 1873, 

 p. 40, pi. i, fig. 4. 



Hah. — Curagoa (Crosse) ; Buen Ayre (Hartert). 



5. Pupa longurio, Crosse. 

 Pupa longurio, Crosse: Journ. de Conch., 1872, vol. xx, p. 158; 1873, 

 vol. xxi, p. 42, pi. i, fig. 2. 



Hah. — Cnra9oa (Crosse). 



6. Ravenla Blandi, Crosse. 



Ravenia Blandi, Crosse: Journ. de Conch., 1873, vol. xxi, p. 69; 

 1874, vol. xxii, p, 69, pi. ii, fig. 4. 



Hah. — Los Roques (Crosse). 



A curious and very small shell, "intermediate between the true 

 Spiraxes and Pupm^'' as regards the peristome and the character of 

 the aperture. 



NEOSUBULmA, n.gen. 



Testa aspectu Suhdince similis, sed lamina parietal! instructa et 

 columella spiraliter contorta, basi hand subtruncata ; radula haud 

 discrepans. TornateUime et Leptinarice similis, sed radula diversa. 



7. Neosubtjlin'a Haeterti, n.sp. Eig. II. 

 Testa elongata, cylindracea, superne angustata, cornea, parum 

 nitida, lineis incrementi tenuibus, obliquis, curvatis striata ; an- 



FiG. II. — NeosuhuVma Harterti, n.sp. 



fractus 8, apicales duo magni, convexi, mammiformes, cseteri convexi- 

 usculi, sutura leviter obliqua haud profunda sejuncti, ultimus haud 

 desccndens ; apertura parva, inverse auriformis, longit. totius \ haud 



