CANCELLARIA 93 



5. Telescopium Pyramidal, trochiform. Fig. 3/8. 



6. Pleurotoma. A slit on the upper part of the outer lip; 

 including Clavatula. Fig. 379, 381. 



7. Tu rbi nell a. Three horizontal folds on the columella, 

 Fig. 382, 383 



8. Spirillus. Spire papillary; one fold on the columella, 

 Fig. 384. 



9. Cancellaria. Three folds, and internal costse. Fig, 



385. 



10. Fasciolaria. Oblique folds, the lowest the largest. 



Fig. 386. 



11. Fusus. Fusiform ; no folds on the columella. Fig. 387, 



12. Pyrula. Pear-shaped. Fig. 388 to 390. 



13. Struthiolaria. Outer lip thickened ; sinuated. Fig, 



391. 



14. Ranella. Two rows of varices; a canal at each extre- 

 mity of the aperture. Fig. 393, 394 . 



15. Murex. Three or more rows of varices; only one distinct 

 canal. Fig. 395, 396. 



16. Typhis. A tubular perforation between each varix. Fig. 

 397. 



17. Triton. Varices not in rows. Fig. 398 to 401. 

 CANCELLARIA. Auct. (From Cancellatus, cross-barred, like win- 

 dow frames or net work.) Fam. Canalifera, Lam. Entomosto- 

 mata, Bl. — Bescr. Oval, thick, cancellated; spire generally short, 

 pointed ; aperture sub-ovate, emarginated anteriorly, pointed at 

 the posterior extremity ; outer lip marked within by transverse 

 ridges ; inner lip spread over part of the body whorl, terminating 

 in a straight, thick, obtuse columella, with several strong oblique 

 folds Hah. Indian Ocean, Coast of Africa, America, and West 

 Indies. Fossils found in London Clay and Calc-grossier of Paris. 

 Differing from Turbinellus in form and in the transversely ribbed 

 inside of the outer lip. Fig. 315. C. reticulata. — Obs. The latest 

 enumeration of the species of this genus is contained in a cata- 

 logue published by Mr. G. B. Sowerby, senior, accompanying the 

 author's figures of the new species, amounting to 38, in parts 9 to 



