RAPHITOMA HORNESI. 387 



spiral lines; mouth long, narrow, almost equal in length to the spire; outer lip 

 gently rounded, but little expanded. 



Dimensions. — L. 12 mm. B. 4 mm. 



Distribution. — Recent: Mediterranean, very rare (Locard). 

 Fossil : Coralline Crag. 



Upper Pliocene : Livorno. 



Pleistocene : Naso, Barcellona-Castroreale, Ficarazzi, Monte Pellegrino. 



Remarks. — I have found a specimen from the Coralline Crag in the Sedgwick 

 Museum at Cambridge which seems to correspond with that figured by Locard 

 (op. cit.), and with some of those given by Prof. Kobelt. Either this species 

 is a variable one or the latter author has represented two species under the same 

 name. Our Crag shell agrees best with Kobelt's fig. 7 and witli those described 

 and figured by Locard (op. cit.) and by Philippi as P. decussation. The sculpture 

 seems to be of a distinct and special character. 



Raphitoma Hornesii (Mayer). Plate XXXIX, fig. 8. 



1858. Pteurotoma Hoernesii, Mayer, Jovtrrt. de Conch., vol. vii, p. 387, pi. xi, fig. 1. 

 1898. Pteurotoma Hoernesii, A. Bell, Trans. Roy. G-eol. Soc. Cornwall, vol. xii, p. 138. 



Specific Characters. — Shell minute, fusiform; whorls 7, convex, depressed above ; 

 ornamented by rather strong costas, flexuous on the body-whorl and by fine well- 

 marked spiral ridges ; spire elongate ; suture deep ; mouth oval ; canal very short. 



Dimensions. — -L. 7 mm. B. 2*75 mm. 



Distribution. — Not known living. 

 Fossil: St. Erth. 



Miocene : Saint Jean de Marsac, near Dax. 



Remarks — The shell figured under this name is from the Jermyn Street 

 Museum and was obtained by Mr. E. T. Newton at St. Erth. Mr. A. Bell has 

 identified it with a Miocene species from the neighbourhood of Dax in south-west 

 France. 



It is considerably smaller than the specimen figured by Mayer and does not 

 correspond exactly with his figure, but it belongs to the same group. 



Raphitoma consimilis, sp. nov. Plate XXXIX, fig. 9. 



Specific Characters.— -Belonging to the R. Homes! group, but having finer spiral 

 sculpture and a longer spire ; it resembles R. Keepingi also, but has a shorter and 

 wider mouth and a shorter canal than in that species. 



