FERUSSACIA. 225 



lunate-oblong; columella short, straight, twisted-lamellate 

 within. Peristome unexpanded, acute, slightly thickened, the 

 outer margin regularly arching forward, margins joined by 

 a callus. Length 8, diam. 4, alt. of aperture 4 mm. (Florence) . 



France: Lauzade near Luc (Var), very rare under stones 

 (Florence). 



Ferussacia gravida FLOR., Bull. Soc. Malac. France, iii, 

 1886, p. 230. 



6. F. VIRGINEA (Westerlund). 



Agrees most with C. gravida Flor., but it has a much less 

 obese shape, the upper whorls increase regularly, the suture 

 is broadly margined, etc. Length 7, diam. 3 mm. 



Spain: near Seville (Prof. Calderon). 



Cionella (Ferussacia) virgi-nea WESTERL., Nachrbl. d. 

 Malak. Ges. xxiv, p. 195 (Dec. 1892) ; Anales de la Sociedad 

 Espanola de Historia Natural, ser. 2, i, 1892, p. 388. 



7. F. GRONOVIANA Risso. PI. 41, figs. 51, 52. 



Shell cylindric, oblong, a little obese, more swollen on the 

 left than on the right side, giving it a slightly Streptaxis-like 

 appearance; glossy, a little transparent, of a yellowish-cor- 

 neous tint, sometimes a little reddish. Spire tapering to the 

 obtuse summit. Whorls 6, irregularly increasing, separated 

 by a suture bordered with a paler margin. The first three 

 whorls are small and increase evenly; the fourth is propor- 

 tionally larger, especially convex on the left side; antepenult, 

 whorl very large; last whorl descends less rapidly, and is 

 less than half the total length. Aperture oblong, the peristome 

 simple and acute; columella a little curved, short, somewhat 

 lamella-like; outer lip arching forward regularly; margins 

 joined by a thin callus. Length 8, diam. 3.25 mm. (Bgt.). 



Nice and environs ; also reported from Malta, etc. 



Ferrussacia gronoviana Risso, Hist. Nat. Eur. Merid. iv, p. 

 80, pi. 3, f. 27. BOURGUIGNAT, Malac. chat, d'lf, p. 18, pi. 2, 

 f. 4-6; Etude synon. sur les Moll. Alpes Marit. p. 41, pi. 1, 

 f. 8-10; Malac. de 1'Algerie i, p. 43, footnote, pi. 3, f. 19-21.- 

 ISSEL, Bull. Soc. Malac. Ital. i, 1868, p. 20, with var. vescoi. 



