422 PLIOCENE MOLLUSCA. 



Cerithiopsis Metaxae (Delle Chiaje). Plate XLI, figs. 16 — 19. 



1829. Murex Metaxse, Delle Chiaje, Memoire, vol. iii, p. 222, pi. xlix, figs. 29, 30. 



1848. Ceritltium metaxa, S. V. Wood, Mon. Crag Moll., pt. i, p. 71, pi. viii, fig. 6. 



1863. Cerithium Crosseanum, Tiberi, Journ. de Condi., vol. xi, p. 158, pi. vi, fig. 2. 



1867-85. Cerithiopsis Metaxa, Jeffreys, Brit. Conch., vol. iv, p. 271, 1867; vol. v, p. 217, pi. lxxxi, 



fig. 4, 1869 ; in Prestwich, Quart. Journ. Geol. Soc, vol. xxvii, pp. 142, 487, 1871 ; Proc. Zool. Soc, 



p. 61, 1885. 

 1870. Cerithiopsis metaxa, A. Bell, Journ. de Conch., vol. xviii, p. 350. 



1872. Ceritliiopsis metaxa, A. and R. Bell, Proc. Geol. Assoc, vol. ii, pp. 203, 209. 



1873. Cerithiopsis metaxa, Seguenza, Boll. E. Com. Geol. Ital., vol. iv, p. 350, no. 228. 



1884. Cerithiopsis Metax.-e, Bucquoy, Dautzenberg et Dollfus, Moll. mar. Rouss., vol. i, p. 207, 



pi. xxvi, figs. 21—27. 

 1890. Cerithiopsis Metaxa, Cams, Prod. Faun. Medit., vol. ii, p. 366. 

 1892. Cerithiopsis Metaxae, Locard, Coq. mar. Cotes de France, p. 117. 

 1908. Cerithiopsis metaxa., Kobelt, Icon, schalentrag. europ. Meeresconch., vol. iv, p. 119, pi. cxviii, 



fig. 18 ; pi. cxx, figs. 9, 10. 

 1917. Metaxia Metaxa, Monterosato, Moll. viv. e quat. Tripoli, p. 20 ; Boll. Soc. Zool. Ital. [3], vol. iv. 



Specific Characters. — Shell small, solid, subcylindrical, turreted ; whorls 14 — 

 15, convex, the last about one-third the total length, more or less excavated 

 below ; spire slender, elongate ; ornamented by longitudinal and by four spiral 

 ridges, finely granulate where they intersect ; base smooth, flattened and angulated 

 by a non-tuberculate ridge ; suture wide and deep ; mouth sub-circular ; canal 

 short, rather wide and open, notched ; outer lip scalloped within by the spiral 

 ridges ; pillar short, flexuous. 



Dimensions. — L. 6 — 8 mm. B. 1'5 — 2 mm. 



Distribution. — Recent : British seas, Guernsey, Cornish coast, Shetland. Vigo 

 bay, Gibraltar. Mediterranean, Adriatic, Tripoli. 



Fossil : Coralline Crag : Sutton, Gomer. Waltonian : Walton- 

 on-Naze, Little Oakley. Newbournian : Waldringfield. 



Pleistocene: Selsey (A. Bell). Messina, Monte Pellegrino, Ficarazzi, Valle 

 Biaia. 



Remarks. — Judging from the specimens represented by the authorities quoted 

 above and by those that have fallen into my hands, G. Metaxae seems to be a 

 variable species, both as to form and sculpture. Wood's figure 5 b is not unlike 

 those given by the authors of the Moll, marins du Eoussillon, but very different from 

 those of Jeffreys or Prof. Kobelt. Seguenza includes C. Metaxse in his list of 

 Pleistocene shells from Italy and Sicily, but I cannot find it has been recorded 

 from any earlier horizon on the Continent. It has been reported by Jeffreys and 

 the brothers Bell from the Coralline and Red Crags and by Mr. A. Bell from 

 Selsey, as well as from Walton- on -Naze and Waldringfield. I have obtained it 

 also at Oakley. 1 have figured some typical recent shells received from my friend 



