HO 



BUCClNUINi tenerum. 



TAB. CCCCLXXXVI.— /g^6\ 3 and 4. 



Spkc. Char. Ovate, acule, tjjin, coarsely striated; 

 spire undulated ; beak antiquated ; \Yhorls 

 convex. 



Distinguished from Buccinum undatuni by the large- 

 ness of the striae, the evenness of the last whorls, and by 

 the imbricated arched remains of the edges of the suc- 

 cessively formed beaks, and sometimes even the whole 

 of the earlier formed li(3s ; the whorls are also more con- 

 vex, and the shell much thinner : in their general aspect 

 the two species much resemble each other. 



Met with abundantly in many parts of the Crag; but 

 from the thinness and fragile state of the shell, large 

 specimens can very rarely be removed from the spot 

 upon which they are found. We are indebted to Mrs. 

 Cobbold, the Rev. Mr. Leathes, and Mr. W. Phillips, 

 for many specimens. 



BUCCINUM unilineatLim. 



TAB. CCCCLXXXVI— /g^s. 5 and 6. 



Spec. Char. Elongated, acute, finely striated ; 

 sides straight ; beak pointed; a single furrow 

 near the upper edge of each whorl. 



A MINUTE shell, whose last whorl is rather ventricose ; 

 the aperture is narrow, pointed at both ends; the single 

 impressed line that runs round the spire near the upper 

 parts of the whorls is remarkable ; the rest of the surface 

 is very finely striated. 



One of the many small shells that occur in the Lime- 

 stone of Ancliff. 



Fig. 6 is augmented to three times the natural length. 



