TRACHELIPODA. 105 



Genus 75.— BULIMUS.— ZamarcA. 



Generic Character. — Shell ovate, oblong, or turreted ; 

 aperture entire, longitudinal; margins very unequal, and 

 disunited above ; columella straight, smooth, entire at the 

 base, and not effuse. 



Bulimus montanus. — The Mountain Bulimus. Plate 

 XIII. fig. 16. Ovate-oblong, umbilicated, slightly striated 

 longitudinally ; of a brownish horn-colour ; with seven con- 

 vex volutions ; aperture semi-oval ; outer lip white and re- 

 flected. Five-eighths of an inch long. Inhabits mountain- 

 ous situations in Savoy, and other parts of Europe. 



Genus 76.— CLAUSILIA.— Zama;-c^. 



Generic Character. — Shell sinistral, generally fusiform, 

 slender ; summit somewhat obtuse ; aperture irregular, 

 rounded, oval ; margins united, free, and externally re- 

 flected. 



Clausilia papillaris. — The Pimpled Clausilia. Plate 

 XIII. fig. 18. Pellucid, finely striated longitudinally, horn- 

 coloured brown ; the margins of the volutions papillose ; 

 aperture with two plaits. Three-fourths of an inch long. 

 Inhabits dry situations in Europe. 



Genus 77.— PUPA Lamarck. 



Generic Character. — Shell cylindrical, generally thick ; 

 aperture irregular, semi-ovate, rounded, and subangulated 

 beneath ; margins nearly equal, reflected outwards, uncon- 

 nected at their upper parts ; the plait of the columella in- 

 terposed between them. 



Pupa muscorvm. — The Moss Pupa. Plate XIII. fig. 

 21. Very small, cylindrical, obtuse, and smooth, brownish 

 horn-coloured; volutions convex; sutures much sunk; aper- 

 ture with one tooth ; outer lip white and reflected. One- 

 eighth of an inch long. Inhabits moss, generally in shaded 

 places, in Britain, France, and other countries of Europe. 



