BUCCINUM. 635 



PORCATUM. 113. Shell ovate-oblona;, sub-ventri- 

 cose, thick, transversely ribbed, and the in- 

 terstices striated ; pillar convex. 



Buccinuin porcatum. Gmelin, p. 3494. 

 Buccinum Mexicanum. Bruguiere Etic. Meth. p. 260. 

 Buccinum, No. 64. Schroeter Einl. i. p. 372. 

 Martini, iv. p. 7 1. t. 126. f. 1213 and 1214. 



Variety, With the transverse ribs obsolete. 

 Lister Conch, t. 963. f. \^. ? 



Inhabits the coasts of Mexico. Bruguiere. 



Shell about two inches and a half long, and half as broad, ge- 

 nerally brown, but sometimes of a bluish colour, and the 

 inner margin of the lips nearly white ; there are live whirls, 

 and the summit is rather obtuse. 



LYRATUM. 114. Shell fusiform, longitudinally rib- 

 bed, and the ribs transversely striated ; apex 

 blackish. 



Buccinum lyratum. Gmelin, p. 3494. 

 Buccinum, No, 70. Schroeter Einl. i. p. 373. 

 Martini, iv. p. 74. t. 127. f. 1221 and 1222. 



Inhabits 



Shell an inch and a half long, and one third as broad, with 

 about six whirls, of which the three lower are of a pale red- 

 dish brown, and the others nearly black. 



PYROZONIAS. 115. Shell with transverse plaits, 

 and undulated striae, and the base and spire 

 a little prominent ; body-w hirl with a double, 

 and the other whirls with a single fulvous 

 band. 



Buccinum pyrozonias. Gmelin, p. 3488. 

 Buccinum, No. 12. Schroeter Einl. i. p. 359. 

 Martini, iii. t. 109. f. 1017. 



Inhabits 



Martini's figure is about thirteen lines long and nine broad, 

 but I cannot find that he has any where described it, and the 

 foregoing specific character of Gmelin's appears to have 

 been taken in a very loose way from the figure only. 



TEXTUM. 116. Shell turreted, longitudinally ribbed, 

 and transversely striated ; whirls flattish at 

 the top. 



