192 CERITUIADiE. 



in the ancient sea-beds of the earlier tertiary epochs, 

 there are Cerithia of great size. The absence of a re- 

 tractile proboscis, the muzzle-shaped head, the spiral 

 operculum, and elongated shell, with a canaliculated re- 

 curved aperture, are the characters which combined mark 

 the entire assemblage of species. The so-called Ceritldum 

 tuherculare, a British shell which has all the aspect of 

 Cerithium, but which differs most essentially, since its oper- 

 culum is not spiral and it has a retractile proboscis, must be 

 excluded from the usual list of species, and will be found 

 described in its proper place hereafter. 



0. RETicuLATUM, Da Costa. 



Brown, with four spiral rows of granules on the lower whorls 

 of the spire. 



Plate XCI. fig. 1, 2, and (Animal) Plate II. fig. . 



? Turbo pufictatus, Linn. Sj'st. Nat. ed. 12, p. 1231. 



Afurex scaler, Olivi, Zool. Adriat. p. 153 (merely from Guai.t. pi. 58, f. 1). — 



Costa, Testae. Sicil. p. 89. 

 Strombi/ormis reticulatus. Da Costa (1778), Brit. Conch, p. 117, pi. 8, f. 13. 

 Murex reiiculutus, Pulteney, Hutchins, Hist. Dorset, p. 43. — Mont. Test- 

 Brit, vol. i. p. 272. — Maton and Rack. Trans. Linn. 

 Soc.vol. viii. p. 150. — Rack. Dorset Catalog, p. 47, pi. 14, 

 f. 13. — TuRT. Conch. Diction, p. 96. — Dillw. Recent 

 Shells, vol. ii. p. 758. — Wood, Index Testae, pi. 28, 

 f. 165. 

 Cerithium lima, Brl'g. Encycl. Meth. Vers, vol. i. p. 495. — Lam. Anim. s. 

 Vert. (cd. Desh.) vol. ix. p. 304. — Philippi, Moll. Sicil. 

 vol. i. p. 195; vol. ii. p. 162. 

 „ Latreiliii, Payraudeau, Moll. Corse, p. 143, pi. 7, f. 9, 10. 

 „ scaltrum, Blainville, Faune Fran^aise, Moll. p. 155, pi. 6, A. f. 8. — 

 Desh. Exped. Mor^e, Moll. p. 181. — Kiener, Coquilles 

 Vivant. Cerith. p. 73 (not vars.), pi. 24, f. 2. 

 Terehra reticulata, Fi-eming, Brit. Animals, p. 346. 



Cerithium reticulaium, Hanley, Conch, Book of Spec. p. 77. — Brit. Marine 

 Conch, p. 193. — LoviiN, Ind. Moll. Grcenl. p. 23, 

 aniniivl. 



