466 GASTEROPODA OF THE INFERIOR OOLITE. 



Genus — Action, Montfort, 1810. 



''Shell oval, s])ivally striated; spire prominent, conical, sharp ; apex reversed ; 

 suture ^oell-marlced ; aperture lengthened, entire, rounded at the base; outer lip sharp, 

 columella furnished with a strong basal fold." — Fischer. 



In Tornatellxa, Conrad, there are two folds, and the aperture is slightly 

 notched at the base. 



411. Action (Tornatellxa) pulchellus, Deslong champs, 184S. Plate XLII, figs. 



12 and 13. 



1848. ToENATELLA levLCUELiiA, DeslonffcJia7nps. Mem. Soc. Linn. Norm., vol. viii, 



p. 1G2, pi. xviii, fig. 4. 

 185? AcTEONiNA PULCiiELLA, d'Orbifftit/. Terr. Jur., vol. ii, p. 169, pi. cclxxxvi, 



figs. 7 and 8. 

 1895. ToENATELLyDA PULCHELLA, DeslongcJiamps. Cossmann, Gastr. Terr. Jur., 



p. 14, pi. i, figs. 6 — 8. 



Bibliography, ^c. — Deslongchamps described this species as having three 

 columellar folds, though it might require an exceptionally well-preserved specimen 

 to show them. He justly hesitated to make a new genus. D'Orbigny placed it 

 with doubt under Actseonina, considering that the folds indicated by Deslongchamps 

 might bring it within the range of Actseon. The species is not quoted as British 

 either by Morris or by Hudleston and Wilson. 



Description : 



Height . . . . .11 mm. 



^ Body-whorl to total height . . .60:100. 



Spiral angle . . . . .55°. 



Shell oval, apex acute ; whorls from five to six, tumid, with tabulated edge, 

 body-whorl large. The entire shell is marked with deeply cut strige, wide apart, 

 and exhibiting punctations. Aperture sub-elongate, elliptical, columella short 

 and marked with oblique folds two or three in number ; indications of an anterior 

 notch. 



Relations and Distribution. — This is perhaps one of the best marked species 

 belonging to the Tornatellidse which the Inferior Oolite affords. Undoubtedly it 

 belongs to Actseon rather than to Actseonina, and to the section or sub-genus 



1 Measured at the back of the shell. 



