J42 PULMONATA. 



11. STENOPUS. 



Shell perforated, conical or depressed, thin, diaphanous ; 

 whorls five to six, last much broader ; aperture roundish lunate ; 

 peristome simple, acute, ])illar-edge entering. 



Animal corrugate, elongate, rarely retracted ; walks with great 

 difficulty, with a serpentine motion ; mantle scarcely produced 

 beyond the edge of the shell ; upper tentacles elongate ; mouth 

 between lower tentacles ; lips plicate ; penis cenical, elongate ; 

 foot linear, tail with subcontractile tentacles, with a gland at the 

 base . — Guilding . 



Stenopus, Guilding, Zool. Journ. 1828, ii. 527. 

 Albers, Heliceen, oj. 

 Gray, Proc. Zool. Soc. 1847, 169. 



1. Stenopus cruentata. B.M. 



Shell openly perforated, depressed, transversely plicatulate, 

 horny-amber ; spire nearly level ; whorls five, very shghtlv con- 

 vex, the last much wider, imjjressed round the perforation ; suture 

 margined ; aperture rounded-lunar ; peristome simple, acute, 

 columellar margin entering. Lat. maj. 8^, min. 7|, alt. 4^ mill. 



Stenopus cruentatus. Guild, in Zool. Journ. iii. 527. t. 15. f. 1-5. 



Swains. Malac. 190. f. 'S'6. 



Sow. Man. Con. f. 515. 



Albers, Heliceen, 57. 



Gray, Fig. Moll. iv. 111. t. 72. f. 2, 4 ; t. 288. f. 4. 

 Helix cruentata, Pfr. Mon. Helic. i. 65 ; iii. 68. 



Hub. St. Vincents. 



2. Stenopus livida. B.M. 



Shell perforated, conic, thin, striatulate, brown horn-colour, 

 diaphanous ; spire conic, rather obtuse ; whorls six, slightly con- 

 vex, the last ventricose beneath, keeled above the middle; aperture 

 rounded-lunar ; peristome simple, acute, straight. Lat. maj. 4^ 

 min. 4, alt. 3i mill. 



Stenopus lividus. Guild, in Zool. Journ. iii. 528. t. ; Suppl. 

 27. f. 1-3. 



Sow. Conch. Man. f. 516. 



Albers, Heliceen, 57. 



Gray, Fig. Moll. iv. 111. t. 288. f. 5. 

 Helix livida, Pfr. Mon. Helic. i. 52 ; iii. 58. 

 Hab. St. Vincents. 



