HOHENWARTIANA. 335 



than the spire. Columella subvertical, a little twisted in- 

 ward, obsoletely truncate, not reaching the base. Aperture 

 oblong-acuminate ; peristome simple, unexpanded, acute, the 

 margins joined by a very thin callus. Length 5.5, diarn. 2, 

 aperture 3x1 mm. (Benoit). 



Sicily: estate of the Prince of Petrella, near Palermo 

 (Benoit, type loc.) ; Syracuse, in debris of Anapo (Cafici). 



Achatina biondiana BEN., 111. test, estramar. Sicil. pt. 4, 

 1862, p. 239, pi. 8, f. 6.Cochlicopa b., CAFICI, II Nat. Sici- 

 liano i, p. 204. Ferussacia biondina PFR., Monogr. vi, 252. 

 -BGT. Rev. et Mag. Zool. 1864, p. 211. 



In fig. 10 a specimen received from Benoit is drawn. It 

 differs from H. hohenwarti by the different curvation of the 

 outer lip in profile, hohenwarti being evenly arcuate, while 

 biondiana is more convex below the middle; moreover the 

 aperture is shorter. The last half of the first and first half 

 of the second whorl is enlarged, after which the whorls in- 

 crease slowly to the penultimate, which with the last in- 

 creases very rapidly. 



14. H. ARADASIANA (Benoit) . PI. 51, figs. 14, 15. 



Shell oblong-cylindric, polished, glittering, pellucid, cor- 

 neous-buff; spire turrite-conic, the apex mamillate; suture 

 rather impressed, indistinctly marginate. Whorls 5, a little 

 convex, very rapidly enlarging, the last not as long as the 

 spire. Columella subvertical, slightly twisted inward, nar- 

 rowly truncate at the base. Aperture oblong-acuminate; 

 peristome simple, unexpanded, acute, margins joined by a 

 hairlike callus, the right margin somewhat arching forward. 

 Length 4.5, diam. 4.75 [sic], aperture 2 mm. long, 1 wide. 

 (Ben.). 



Sicily : Palermo, near the Oreto river. 



Achatina aradasiana BEN., Illustr. etc., p. 244. 



Figured from a specimen received from Benoit. The first 

 half whorl is rather small; the following whorl very large; 

 at the end of l 1 /^ whorls the whorl contracts again, the 

 suture becoming subhorizontal. The last turn of the suture 

 is very oblique, steeply descending. The sutural border is 



