192 CERITHIAD^. 



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

 there are Gerithia 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 CerWdum 

 tuherculare, a British shell which has all the aspect of 

 CeritJiium, 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. 



C 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. 2. 



? Turbo pmiciaiusy Linn. Syst. Nat. ed. 12, p. 1231. 



Murex scaler, Olivi, Zool. Adriat. p. 1 53 (merely from Gualt. pi. 58, f. 1). — 



Costa, Testae. Sicil. p. 89. 

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

 Afurex reticulutus, Pulteney, Hutchins, Hist. Dorset, p. 43. — Mont. Test. 

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

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

 f. 13. — TuRT. Conch. Diction, p. 96. — Dill w. Recent 

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

 f. 165. 

 Cerithium lima, Brug, Encycl. Meth. Vers, vol. i. p. 495. — Lam. Anim. s. 

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

 vol. i. p. 195 ; vol. ii. p. 1G2, 

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

 „ scahrum, Blainville, Faune Francjaise, Moll. p. 155, pi. 6, a. f. 8. — 

 Desh. Exped. Moree, Moll. p. 181. — Kiener, Coquilles 

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

 Terehra reticulata, Fleming, Brit. Animals, p. 346. 



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

 Conch, p. 193. — Loven, Ind. Moll. Groenl. p. 23, 

 animal. 



