CERITHIOPSTS MTNIMA. 423 



M. Dautzenberg for the guidance of future collectors. One of the fossils here 

 given (fig. 19) is considerably larger than the type but he informs nio that such 

 specimens are occasionally met with. 0. Metaxae is a distinctly southern form ; so 

 far as this country is concerned it is rare, both as a fossil and living. 



Cerithiopsis minima (Brusina). Plate XLT, figs. 22, 23. 



1848. Cerithium tuberculare, var. nanum, S. V. Wood, Mon. Crag Moll., pt. i, p. 70, pi. viii, fig. 5 c. 

 1865-6. Cerithium minimum, Brusina, Conch. Dalm. hied., p. 17, 1865 ; Cerithiopsis minima, Contr. 



Faun. Dalmat,, p. 71, 1866. 

 1868. Cerithiopsis minima, Weinkauff, Conch. Mittelm., vol. ii, p. 170. 

 1875-8. Cerithiopsis tubercularis, var. minima, Mouterosato, Nuov. Rivist., p. 38, 1875 ; C. minima, 



Enum. e Sinon. Conch. Medit., p. 39, 1878. 

 1884. Cerithiopsis minima, Bucquoy, Dautzenberg et Dollfus, Moll. mar. Rouss., vol. i, p. 207, 



pi. xxvii, figs. 5 — 9. 

 1886. Cerithiopsis minima, Dollfus et Dautzenberg, Feuilles des jeunes Nat., vol. xvi, p. 105. 

 1890. Cerithiopsis minima, Carus, Prod. Faun. Medit., vol. ii, p. 364. 

 1892. Cerithiopsis minima, Locard, Coq. mar. Cotes de France, p. 119, fig. 106. 

 1895. Cerithiopsis tubercularis, var. nana, Sacco, Moll. Terr. Terz. Piem., pt. xvii, p. 66. 

 1908. Cerithiopsis minima, Kobelt, Icon, schalentrag. europ. Meeresconch., vol. iv, p. 124, pi. cxx, 



figs. 16, 17. 

 1912. Cerithiopsis minima, var. ovoides, Cerulli-Irelli, Palaeont. Ital., vol. xviii, p. 148, pi. xxiii, fig. 47. 

 1917. Cerithiopsis minima, Mouterosato, Moll. viv. e quat. Tripoli, p. 20; Boll. Soc. Zool. Ital. [3], 



vol. iv. 



Specific Characters. — Shell minute, solid, turriculate, conical at the summit, 

 slightly swelled in the middle, contracted at the base ; whorls nearly flat, orna- 

 mented by three rows of rounded tubercles ; suture very slight ; mouth quad- 

 rangular ; canal very short ; columella flexuous. 



Dimensions. — L. 3 mm. B. 1 mm. 



Distribution. — Recent: Great Britain — English Channel, Killala Bay, western 

 Hebrides. Mediterranean — Pauilles, Algiers, Tunis, Sicily, Tripoli. Adriatic — 

 Dalmatia. Atlantic coasts as far south as Madeira. 

 Fossil : Coralline Crag : Sutton. 



Miocene : Touraine. 



Upper Pliocene : Monte Mario. 



Remarks. — The minute fossils here figured are from the Wood collection at the 

 Norwich Museum, having been obtained from the bed of small shells at Sutton 

 which has yielded so many interesting specimens. Two varieties of this species 

 have been described by the authors above mentioned, one a minute, short and 

 pupoid form agreeing very nearly with my fig. 23 and with that from Monte Mario 

 figured by Sign. Cerulli-Irelli as C. minima, var. ovoides (op. cit., fig. 47), the other 

 (fig. 22) longer in the spire. 



55 



