32 R. BULLEN NEWTON on 



from the Upper Calcaire Grossier of France. Some differences exist, however, 

 such as a relatively longer spire, a more delicate sculpture, and less developed 

 spines. In other details there is almost perfect agreement, the number of 

 varices being similar ( = seven), the ovate aperture presenting the same 

 characters including the possession of a nearly horizontal posterior canaliculation 

 and anteriorly a narrow, elongate, perpendicular canal. The interior of the 

 labrum is similarly furnished with transverse ridges, while the tubulosity of 

 the peripheral spines is well marked. Sculpture details are more or less 

 delicate, the embryonal whorls being quite smooth while the posterior faces 

 of the succeeding whorls show little ornamentation being nearly smooth. The 

 anterior regions of the volutions, however, are strongly decorated with spiral 

 costae, especially the last whorl, and microscopically fine longitudinal striations. 

 The largest example in the collection shows a length of 21 mm. and a diameter 

 of nearly 13 mm. Following M. Cossmann (Essais PaMoconch. Comp. 1903, 

 vol. 5, pp. 30-32) this species is included in Jousseaume's Poiriena, of which 

 the type is Murex zelandicus, Q. & G. of recent seas. 



DISTRIBUTION. Lutetian and Bartonian of Europe. 

 OCCURRENCE, Cuttings Nos. i, 5, 6, 10, 12, 15. 

 COLLECTOR. Mr. Kitson. 



Family FUSION. 

 Rhopalithes africanus, sp. nov. 

 PLATE 2, figs. 9, 10. 



DESCRIPTION. Shell elongate, fusiform, without sutural shelf; spire obtusely 

 apiciform, produced, conical, concavo-ventricose, comprising seven or eight 

 marginally thickened whorls, deep, separated by a thin indented suture ; body- 

 whorl one-fifth longer than the spire, depresso-globose, narrowly and perpen- 

 dicularly canaliculated ; aperture narrow, vertically elliptical, outer margin 

 posteriorly sinuated ; columella strong, border elevated, interiorly uni-plicated ; 

 surface of protoconch ( = 2 \ whorls) smooth, succeeding four or five whorls 

 distantly costated and spirally striate, remaining whorls crowded with extremely 

 fine longitudinal and spiral striations, the former being sinuated while the 

 spiral ornament presents a minutely wrinkled or serrate character especially 

 on the body-whorl. 



