24 C^ECILIOIDES OF ITALY. 



the longer aperture, not so much receding below and less 

 widened. The moderately increasing whorls are somewhat 

 convex, the upper margin noticeably thickened, narrowly bor- 

 dered. The base of the last whorl is very lightly arcuately 

 tapering. The bend of the columella is indistinct, the trunca- 

 tion at its base oblique. The ends of the peristome are joined 

 by a distinct deposit. Length 5, diam. 1.33 to 1.5 mm. 

 (Kuester, 1870). 



This species was quite unrecognizably described by Jan, but 

 it was redescribed in 1852 by Edoardo de Betta, from specimens 

 received from Jan. I have translated de Betta' s description 

 and reproduced his very poor figure. Kuester ably discussed 

 the form in 1870, having specimens received from de Betta, and 

 others collected by himself at Triest. 



15. C. PEDEMONTANA Pollonera. 



Differs from aciculoides by the less swollen shell, slightly 

 smaller size, spire a little more acute and higher, aperture 

 narrower and the columellar margin less arcuate. Length 6, 

 diam. 1.75 mm. (Poll}. 



Italy: drift debris of the Po at Turin; of the Scrivia at 

 Carbonara. 



CtfciUanella p. POLL., Atti R. Accad. Sci. di Torino, xx, 1885, 

 p. 693. 



16. C. LAUTA (Paulucci). PI. 3, fig. 41, 42. 



Shell slender, elongate-lanceolate, glassy- hyaline, whitish, 

 polished, glossy. Spire produced, the apex obtuse. Whorls 6, 

 irregularly and rapidly increasing, the first 4 only a trifle convex, 

 the rest a little convex, separated by a duplicated, impressed 

 suture; last whorl larger, slightly more than one-third the total 

 length, not descending. Aperture oblong, angular above; 

 columella curved, truncate, not reaching the base of the aper- 

 ture. Peristome unexparided, the outer margin arching for- 

 ward, margins joined by a thin callus. Length 4.5, diam. 1.5 

 mm. (Paul.). 



Italy: peak of Ronconali. 



Acicula lauta PAULUCCI, Bull. Soc. Malac. Italiana, xii, 1886, 

 p. 46, pi. 2, f. 4. 



