ALBIAN FOSSILS DISCOVERED AT OKEFORD FITZPAINE. 81 



ornamenting the surface are only obscurely seen on one of the 

 earlier whorls. 



Conrad has included this species in his genus Anchura, which 

 he characterises as having " a prolonged straight labrum, biangu- 

 lated, abrupt, and broad on the outer margin." Conrad's work 

 appears to have been overlooked by Mr. J. S. Gardner during his 

 study of the Gault Aporrhaidse, as no reference is made to it in his 

 interesting monograph on this subject. 



RANGE OF SPECIES. Albian. 



LOCALITIES. Eingmer, Ridge, Folkestone, Bletchingley, Laugh- 

 ton, Norlington, Cambridge, &c. ; Wissant, d'Ervy, Ardennes, St. 

 Croix, &c. 



RINGINELLA INFLATA, J. de C. Sowerby. 

 PI. iii., fig. 5. 



Auricula inflata, J. de C. Sowerby : Trans. Geol. Soc., London, 

 1836, Ser. 2, Vol. 4, PI. 11, fig. 11, p. 336. 



Ringinella inflata, Orbigny : Paleontologie Franfaise, Terrains 

 Greece's, Gasteropoda, 1842, PI. 168, figs. 1-4, p. 128. 



Avellana inilata, Morris : Cat. British Fossils, 1854, Ed. 2, 

 p. 235. 



Ringinella inflata, Cossmann : Essais Pale"oconchologie Com- 

 pare, 1895, Part ], p. 119. 



Sowerby's species, to which this shell is referred, has a somewhat 

 elongate, pointed spire, and is of oval contour ; the columella bears 

 two lamellar plications, the lower one of which is frequently 

 divided or bifid ; labrum thick, rounded, and internally smooth ; 

 surface ornamented with spiral grooves containing closely-set 

 punctatious. This form is related to Avellana pulchella of Price. 

 (Quart. Journ. Geol. Soc., 1874, Vol. 30, PI. 25, figs. 4-5, p. 356) 

 and chiefly differs from it in possessing no dentations on the 

 internal margin of the outer lip. M. Cossmann uses d'Orbigny's 

 genus Ringinella as a sub-genus of Avellana, but I prefer to regard 

 it in the generic sense as originally proposed by its author in 1842. 

 The specimen figured has an imperfect spire ; otherwise it is fairly 

 well preserved and exhibits the main characters of the species. 



