11: 



BUCCINUM labiatum. 



TAB. CCCCXll.— /^*. land 2. 



8pec. Char. Ovate acuminated, costated, 

 transversely striated ; striae numerous, large, 

 elevated and rounded ; whorls convex ; 

 aperture oblong ; its outer lip enlarged in 

 the middle, and striated within. 



J HE striye upon the surface of this shell are almost pto- 

 5uinent enough to be called carinae ; they are nearly close 

 together, and alternately large and small ; the lip is thin 

 and sharp, it has a very obtuse sinus that occupies its 

 upper half, the lower half being enlarged; the beak is 

 ratl»er wide, open and twisted ; the costae are numerous, 

 Jong, and curved ; the upper parts of the whorls are 

 slii^iitly concave. 



Found at Plumstead by the Rev. H. Steinhauer iu 

 1812,; the Rev. Mr. Iremonger met with it on the 

 Hampshire coast, and it has since been found in Colwell 

 Bay on the Isle of Wight by Professor Sedgwick ; it ap- 

 ])ears to abound wherever it occurs, and is probably 

 characteristic of the so-called upper marine beds. 



Fig. 1, is from a Hampshire specimen, and Fig. 2. one 

 from the Isle of Wight. 



BUCCINUM lavatum. 

 TAB. CCCCXII.-;/?^... 3 and 4. 



Spec. Char. Ovate acuminated, costated, fur- 

 nished with many acute carinae, and trans- 

 versely striated ; aperture oblong ; lip cre- 

 nulated at the edge, and striated within ; 

 whorls convex. 



Syn. Buccinum lavatum, Grander,/. 16. 



A LL the carinas are sharp and equal ; they are enlarged 

 as they pass over the curved costae ; the striae between 

 them are minute, but very regular : these characters will 

 distinguish this shell from the one just described, wheu 

 the aperture is imperfect ; when that is perfect, \U 

 notched edge without a sinus adds to the certainty. 

 Extremely abundant in the blue Clay of the Bartou 



