RAPHITOMA HARPULA. 255 



Fossil: Waltonian Crag : Little Oakle}^ JNewbournian : Bentley. 

 Wexford gravels (A, Bell). 



Bemarl-s. — l have a single specimen of this well-marked variety from Oakley 

 which corresponds with some shells in the Holmes Collection at the Norwich 

 Castle Musenm, one of which I have figured with it. The type specimen from 

 Strangford Longh (oj). cif.), from which this form was originally described, was 

 somewhat more slender than our Crag shell ; otherwise it agrees with it. 



Genus RAPHITOMA, Bellardi, 1847. 

 Raphitoma harpula (Brocchi). Plate XXX, figs. 1, 2. 



1814. Murex har})ula, Brocchi, Couch, foss. Subap., vol. ii, p. 421, pi. viii, fig. 12. 



1844. Pleurotoma harpula, Philippi, Enum. Moll. Siciliae, vol. ii, p. 173. 



1847. Raphitoma harpuln, Bellardi, Mem. E. Accad. Sci. Torino [2], vol. ix, p. 629. 



1873-5. Baphitoma harpula, Seguenza, Boll. R. Com. Greol. Italia, vol. iv, p. 298, uo. 100, 1873 ; 



vol. V, p. 276, no. 37, 1874; vol. vi, p. 210, no. 233, 187-5. 

 1877. Bophitoma harpula, Bellardi, Moll. Terr. Terz. Piem., pt. ii, p. 320. 

 1882. Raphitoma harpula, S. V. Wood, jiuir., Mon. Crag Moll., Srd Suppl., p. 5, pi. i, fig. 4. 

 1889. Baphitoma harpula, Sacco. Boll. Soc. Ital. Geol., vol. ix, p. 284, no. 4357. 

 1914. Perafotoma {Amhhjacrum) harpula, Cipolla, Palaeont. Ital., vol. xx, p. 172, pi. xiv, fig. 23. 



Specific Characters. — Shell slender, turreted ; spire elongate, ending in an acute 

 point ; suture deep ; whorls 8 — 9, short, distinctly convex, the last two-fifths the 

 total length ; ornamented with ten or tAvelve prominent, sharply-edged longitudinal 

 costge, narrower than the spaces between them, nearly straight on the upper 

 whorls, curved on the last, and by fine, thread-like spiral lines which cross, and 

 are plainly marked on the ribs ; mouth oval, short, angulate above, ending in a 

 short and open canal which turns slightly to the left. 



Dimensions. — L. 20 mm. B. 6 mm. 



Distribution. — Not knoAvn living. 



Fossil : Coralline Crag : Boyton. ^Yaltonian : Little Oakley. 



Upper Miocene : Northern Italy. Lower Pliocene : Castelnuova d'Asti, Savona, 

 Albenga. Upper Pliocene : Biot, Orciano, Bologna, Livorno, Monte Mario, 

 Altavilla, Messina. 



lieniarhs. — The genus Uaphitoma includes a special group of small inoperculate 

 Pleurotomas, subfusiform and longitudinally costated. 



Wood figures a small specimen of this species which was found at Boyton by 

 the late R. G. Bell ; it is smaller and less elongate than the type. The one now 

 given, with a specimen from the Italian Pliocene for comparison, is from Oakley,, 

 and approaches more nearly the latter and the shell originally represented by 



