160 CATALOGUE OF PHANEROPNEUMONA. 
Cyclostoma marmoreum, Sow. Thes. n. 31, p. 101, t. 23, f. 34, 35. 
Cyclostoma elegans var., Pfr. Jc. p. 75, t. 28, f. 23. 
Cyclostomus elegans var., Gray, Catal. Cycl. p. 46. 
flab, Germany, Britain and Ireland, Illyria, France, Switzerland, 
Dalmatia, Greece; Algiers and the Canary Islands. 
62. CYcLOSTOMUS FASCICULARIS. 
Shell perforated, ovate, acuminate, rather solid, sculptured very 
closely with longitudinal rib-like striz, a little silk-shining, 
grayish-horn-coloured ; spire conic, with the apex rather pointed ; 
suture crenated by prominent bunches of ribs; whorls 5, mode- 
rately convex, the last one rounded, spirally grooved beneath ; 
aperture scarcely oblique, ovate; peristome simple, straight, 
sharp. Operculum shelly, with few whorls, which are striated 
obliquely. Length 12, breadth 8 mill. 
Cyclostoma fasciculare, Pfr. in Proc. Zool. Soc. 1851; Le. n. 307, 
t. 40, f, 23, 24. 
Cyclostomus fascicularis, Pfr. Consp. n. 333, p. 64; Prewm. Mon. 
p. 229. 
Locality unknown. 
63. CycLosTOMUS LEVIGATUS. 
Shell subperforate, ovate-conic, rather solid, grooved crowdedly 
and spirally, slightly shining, banded with white and brown ; 
spire short, conic, rather blunt ; whorls 4, scarcely convex, last 
ventricose ; suture slightly fringed and crenate; aperture 
scarcely oblique, shining within; peristome simple, straight, 
white, with the margins approximate, angularly joined by a 
thin callus, columellar margin somewhat thickened and reflexed. 
Operculum testaceous, of few volutions. Length 14, breadth 8} 
mill. 
Cyclostoma levigatum, Webd & Berth, Syn. Moll. Canar. p. 322 ; 
Sow. Thes. n. 49, p. 107, t. 24, f. 62, 63; Pfr. Ic. n. 100, p. 102, 
t. 13, £13, 14, n. 22, 23. 
Cyclostoma Canariense, Orb. Moll. Canar. p. 76, t. 2, f. 30. 
Cyclophorus levigatus, Gray, Cat. Cycl. p. 43, 0.5; Pfr. Consp. 
n. 334; Pneum. Mon. p. 229. 
Hab. Teneriffe. 
64. CycLOsTOMUS TECTILABRIS. 
Shell scarcely subperforate, ovate, rather thin, closely sculptured 
with sharp lamellar longitudinal folds, fulvous-whitish, often 
clouded with violaceous, painted with numerous series of 
reddish-brown points; spire ovate, shortly truncate; suture 
crenate; whorls remaining 4, convex, the last one slightly 
ascending anteriorly ; aperture ovate, its base proceeding beyond 
