294 FRIDOLINIA, DENTELLOCARACOLUS. 



(Species of the Cape Verde Is.) 



L. advena W. & B., iv, 192. L. leptostyla Dohrn, iv, 194. 

 L. serta Alb., iv, 193. milleri Dohrn. 



L. fogoensis Dohrn, iv, 193. L. primreva Morel., iv, 195. 



L. visgeriana Dohrn, iv, 193. L. atlantidea Morel., iv, 195. 



L. myristica Sh., iv, 194. L. subroseotincta Woll., iv, 195. 

 L. bollei Alb., iv,194. 



(Imperforate, thin, acutely keeled, with 3 to 4 rapidly widening whorls. 

 LAMPADIA. Madeira, Canaries.) 



L. webbiana Lwe., iv, 200. L. membranacea Lwe., iv, 201. 

 Vit. bocagei Paiva. L. cuticula Sh., iv, 201. 



Genus FRIDOLINIA Pilsbry, 1894. 



Shell large, heavy, depressed-turbinate, urnbilicate when young, 

 closed in the adult ; surface obliquely coarsely malleated. Last 

 whorl large, descending in front and strongly constricted behind the 

 lip, swollen in the middle of the base. Aperture very oblique, 

 toothless ; peristome narrowly reflexed, its remote terminations 

 joined by a callus, the basal and columellar margins thickened 

 by a heavy callus within. Type H. lucani Tourn., pi. 71, figs. 55, 56. 



This group, the type of which is a Miocene fossil of Dijon, is dis- 

 tinguished mainly by the tumid base, strong constriction behind the 

 lip, and coarse sculpture. Its affinities are problematic. 



Section Pseudoleptaxis Pilsbry, 1894. 



Shell solid, imperforate, globose, sculptured with oblique wrinkles ; 

 last whorl large, rounded, constricted behind the thickened, expanded 

 lip. Aperture lunate, oblique ; columellar lip dilated. Type H. 

 corduensis (Noul.) Sandb., pi. 71, figs. 57, 58. 



Perhaps to the Oligocene type of this group is to be added the 

 lower Miocene H. ramondi A. Braun, but that form may really be- 

 long to Plebecula. 



Genus DENTELLOCARACOLUS Oppenheiin, 1890. 



Dentellocaracolus OPPENH., Denkschr. K. Akad. Wissensch. Ivii, 

 p. 117. 



Shell imperforate or covered perforate, globose-conic, more or 

 less keeled, the base rather flattened; whorls 4 to 6, the last 





