RAPHITOMA BRACHYSTOMA. 261 



hleaes of Ligurian coast. Upper Pliocene: Biot, Colle Astesi, Val Andona, Monte 

 Mario, Altavilla. Pleistocene : Monte Pellegrino, Valle Biaia. 



Bemarks — In his Monograph of 1848 Wood figured two rather different speci- 

 mens under the name of Pleurotoma concinnata, one of them approaching, though 

 not very nearly, the shell last described as B. siiiiili>>. They were afterwards 

 referred by Jeffreys in 1871 to P. decussata,^ Phil., and in 1872 by Wood to 

 7'. Mspld'iila,^ but I am compelled to doubt the correctness of both those identifica- 

 tions. I have an imperfect shell from Oakley, not good enough to be figured, 

 Avhich may belong to the present species. As it is apt to be confounded with B. 

 slmilis 1 figure a specimen from the Italian Pliocene in order to call the attention 

 of collectors to the matter, and to show the difference between the two. It seems 

 to be the variety A of Bellardi. 



Kaphitoma brachystoma (Phillppi). Plate XXX, figs. 30, 31. 



1844. Pleurotoma hrachystomum, Philippi, Ennm. Moll. Siciliae, vol. ii, p. 169, pi. xxvi, fig. 10. 



1848. Clavaiula brachystoma, S. V. Wood, Mou. Crag Moll, pt. i, p. 60, pi. vii, fig. 8. 



1853. Mancjelia brachystoma, Forbes and Hanley, Brit. Moll., vol. iii, p. 480, pi. cxiv, fig.s. o, 6. 



1867. Pleurotoma brachystoma, Jeffreys, Brit. Conch., vol. iv, p. 382, pi. xc, fig. 5. 



1873-5. Baphitoma brachystoma, Seguenza, Boll. E. Com. Geol. Italia, vol. iv, p. 298, no. 92, 1873; 



vol. vi, p. 210, no. 219, 1875. 

 1877. Baphitoma brachystoma, Bellardi, Moll. Terr. Terz. Piem., pt. ii, p. 318, pi. ix, fig. 34. 

 1881. Pleurotoma brachystoma, Nyst, Conch. Terr. Tert. Belg., p. 53, pi. iii, fig. 18. 

 1890. Raphitoma brachystoma, Carus, Prod. Faun. Medit., vol. ii, p. 422. 

 1901. MangeJia brachystoma, Br^gger, Iforges geol. underscpgelse, vol. xxxi, pp. 514, 662, pi. xvii, 



fig. 7. 

 1905. Raphitoma (Ginnania) brachystomum, Kobelt, Icon, schalentrag. europ. Meeresconch., vol. iii, 



p. 378, pi. xcvii, figs. 6 — 8. 

 1910. Raphitoma brachystoma, CeruUi-Irelli, Palaeont. Ital., vol. xvi, p. 68, pi. vi, figs. 35 — 43. 

 1912. Pleurotoma brachystoma, Tescli, Med. v. d. Rijks. v. Delfstoffen, vol. iv, p. 90, no. 229. 



Specific Characters. — Shell minute, turreted ; Avhorls convex, angulated and 

 shelf-like above, the last rather more than half the total length ; ornamented by 

 about eight strong and prominent longitudinal ribs and by fine thread-like spiral 

 ridges, wavy and unequal, which cross the ribs ; upper whorls smooth and glossy ; 

 spire regularly diminishing in size ; apex blunt and abrupt : suture deep ; mouth 

 narrow, angulated above ; canal short, rather wide : labial notch small; pillar short. 



Dimensions. — L. 6 — 8 mm. B. 2 — 3 mm. 



Distribution. — Becent: Great Britain, Cornwall to Shetland, principally western. 

 Dogger Bank. Southern Coasts of Norway and Sweden. AYest European, 

 Mediterranean, Adriatic, -5i]gean, North African coast. 



' Quart. Jouru. Ceol. Soc, vol. xxvii, pp. 143, 487, 1871. 

 2 Mon. Crag Moll., 1st Suppl., pt. i, p. 42, 1872. 



