OF CONCHOLOGY. 265 



terized by its polished surfa$e, emarginate outer lip and oblique 

 folds. The species in Pal. Indica, referred to Athleta, must be 

 removed from that genus, and if associated with V. lioderma, 

 will require that the generic description shall be slightly modi- 

 fied, as Dr. Stoliczka has proposed. 



Fasciolaria assimilis. Is this a Fasciolaria ? It seems to us 

 much more like a Volutilithes. 



T.urritella dispassa. We have compared the figure of this 

 shell, of which no description is yet published, with authentic 

 specimens of T. Saffordii, Gabb, from California and Tennessee, 

 and cannot see the slightest difference. It will be interesting if 

 future investigation should show that, out of 300 cretaceous 

 fossils in California, one of the four that exist in common on 

 both sides of the Continent, should be again found in India. — G. 



FRENCH. 



Malacologie Terrestre et d'Eau Douce de la Region Intra-Littorale 

 de 1' Aquitaine. By J. B. Gassies. 8 vo. 3o pp. and 1 pi. Paris, 

 1867. (From the Actes de la Soc. Linn, de Bordeaux, xxvi.) 



The new species are : 



Limax arenarius, Succinea stagnalis, 



Bythinia Baudoniana, Unio Danielis. 



De la Classification de certains Opercules de Gasteropodes. By. Ch. 



des Modlins. (From the " Actes de la Societe Linneenne de Bordeaux, 

 xxvi, 1867.) 



The author reviews the nomenclature applied to the various 

 modes of growth of opercula, and adopts the following : 



( multispiral. 

 « *. , ! paucispiral, including .articulated and subspiral of 

 P ' j Woodward. 



x {^crypto spiral = concentric, Woodward. 



( unguiculated, including imbricated or lamellated 

 Non-spiral. < of Woodward. 



J radiated. 



Mollusques Nouveaux, Litlgieux ou peu Connus. Par M. J. R. Bocr- 

 guignat. Part 8th. 32 pp. with 5 lithographic plates. Paris, Dec. 1867, 



The species herein described and figured are 



Zonites eurabdotus, blidahensis, pomelianus; Helix apalolena, 

 Jourdaniana, Thayaca, Rokniaca, JDussertiana, Vaton- 

 niana ; Ferussacia Cirtana. 



