SCALA (FIJSCOSCALA) MOORET. 541 



Dimensions. — L. 25 — 45 mm. B. 8 — 16 mm. 



Distribution. — Recent : British seas, cliiefly southern and western, Mediter- 

 ranean, Adriatic, ^gean. North Atlantic from Norway to Madeira. 



Fossil : Pleistocene : Torbay, Bute, Ayr, estuarinc clays of 

 Belfast, Limavady. 



Upper Pliocene : Monte Mario, northern Italy, Rhone Valley, Altavilla. 



Pleistocene : Calabria ; Sicily — Messina, Catania, Ficarazzi, Monte Pellegrino. 



BemarJcs. — The specific name of Tiirtonx or Tvrfonis has been rejected of late 

 years in favour of temiicosta on the ground that an author has no right to describe 

 a new species under his own name or that of any member of his family. In the 

 opinion of M. de Boury, the form figured by Wood as S. Tartoni is not the typical 

 British shell, but a different species which he proposed to call B. inclusa as 

 explained in the following paragraph. 8. temdcosta (Turtonis) has not been satis- 

 factorily identified from the English Crag, but it occurs in some of our Pleistocene 

 deposits, as in the estuarine clays of Belfast, as well as in those of several English 

 and Scottish localities. It seems to be a variable form, one variety being subulate 

 and comparatively slender, corresponding with the figures given by MM. Bucquoy, 

 Dautzenberg and Dollfus {op. cit., pi. xxiii, figs. 12 and 13), the other having a 

 broader base as represented by Forbes and Hanley. One of the specimens now 

 figured (PI. XLVII, fig. 18) is from the estuarine clays of Belfast, the other 

 (fig. 17) is a recent example from Exmouth. 



S. tenuicosta ranges as a recent shell from Great Britain and the Norwegian 

 coast to Madeira. As a fossil it is reported from the Pliocene of the Rhone valley 

 and of Italy and Sicily, as well as from the Pleistocene of the last-named district 

 and of Calabria. 



Scala (Fuscoscala) Moorei, sp. nov. Plate XLVIII, fig. 32. 



Specific Characters. — Shell conical, turreted, with a wide base ; whorls 6 or 7, 

 convex, the last expanded, much the largest; ornamented by about 12 narrow 

 costae, somewhat oblique, which reach the base, not so large as the intervening 

 spaces ; suture rather deep ; spire rapidly diminishing upwards ; mouth sub- 

 circular ; outer lip thickened by the labial rib. 



Dimensions. — L. 20 mm. B. 10 mm. 



Distribution. — Not known living. 



Fossil : Newbournian Crag : Felixstowe. 



Bemarhs. — The shell here figured, was found in the Newbournian Crag at 



Felixstowe by Major Moore, to whom I venture to dedicate it. M. de Boury 



considered it a new species. It is one of two specimens obtained at the same place, 



the other being more worn. 



71 



