468 CONIDiE. 



abundant possibly in the south than in the north. It is 

 not a gregarious shell. It inhabits all depths of water 

 from three to sixty or seventy fathoms. It is not un- 

 common in the Zetland seas, though not recorded among 

 Norwegian species. Southwards it ranges to and through 

 the Mediterranean, where it is a very common shell. 



M. Leufroyi, Michaud. 



White, with one or two bands of brownish splotches (never 

 lineated with browu) ; decussated by numerous longitudinal ribs, 

 and peculiarly dense fine spiral raised threads ; mouth nearly 

 equal to spire ; throat smooth ; labial sinus small, but distinct. 



Plate CXIII. fig. 6, 7, and (Animal) Plate R. R. fig. 1. 



Pkurotoma Leufroyi, Michaud, Bullet. Soc. Linn. Bordeaux, vol. ii. (1828), 

 p. 121 (copied, Fbrus. Bull. Sciences Nat. vol. xvii. 

 p. 308), f. 5, 6. — KiENER, Coq. Vivant. Pleur, pi. 24, 

 f. 3. — PiULippi, Moll. Sicil. vol. ii. p. 165. — Reeve, 

 Conch. Icon. vol. i. pi. 16, f. 131. 

 „ injlata, Philippi (as of CRiSTOF.and Jan.), Moll. Sicil. vol. i. p. 1D7, 



pi. ll,f.24. 

 Fusus Doothii, Saiith, Mem. Werner. Soc. (1839), vol. viii. pt. 1, p. 1)8, pi. 1, 

 f. 1. — Brown, Illust. Conch. G. B. p. 127, pi. 57, 

 f, 12. 

 Pleurotoma Boothii, Brit. Marine Conch, p. 19G. 



The characters of this shell approximate closely to those 

 of the preceding species ; it is however larger, has more 

 crowded sculpture, and a different style of painting. 



The individuals met with on our own coast have a more 

 produced form than the typical specimens of the Mediter- 

 ranean. They are of a somewhat acuminated oblong-fusi- 

 form shape, not very strong, but little shining, and varie- 

 gated, on a ground of yellowish-white, with small s[)lotches 

 of brown, that arc most frequently disposed upon the body- 

 whorl in two irregular zones, the upper one of which is 



