902 HELIX. 



slightly convex transversely striated whirls ; the aperture is 

 transverse and ear-shaped, and has a white reflected lip. 



UNIDENTATA. 35. Shell sub-umbilicated, slightly 

 keeled, with six whirls ending in an obtuse 

 summit; base convex, with one tooth on the 

 pillar-lip, and the outer lip marginated. 



Helix unidentata. Chemnitz, xi. p. 273. t. 208. f. 2049 and 

 2050. 



Inhabits Ceylon. Chemnitz. 



Shell about an inch and three-quarters in diameter, of a dull 

 brownish red colour, with a narrow white band on the keel 

 of the body-whirl which is continued along the sutures of 

 the spire ; the summit of the spire is depressed and obtuse, 

 and the base is convex. 



coRNu-MiLiTARE. 36. Shell imperforate, solid, 

 slightly keeled, ventricose, and the summit 

 obtuse; aperture wide, and the outer lip 

 thick and reflected. 



Helix Cornu-militare. Linnatis S^st. Nat. p. 1243.? Born 



3] us. p. 37 1. Schroeter Hint. li. p. 133. Chemnitz, ix. 



part ii. p. Il6. t. 129- f. 1142 and 1143. Gmelin, 



p. 3620. 

 Helix gigantea. Scopoli del Insul. i. p. 66. t. 25. f. A, 



Gme/in, p. 3646. 

 Kttorr, vi. t. 32. f. 2. Favanne, t. 64. f. C 2. 

 Inhabits Germany. Knorr. And is a land shell. Linnaiis. 

 Linnaeus has given only a short description, and Gualter, t. 3, 

 f. I, which he has quoted, appears to me to be H. Caro- 

 colla, so that it is almost impossible to ascertain his mean- 

 ing with any certainty. The present shell is about two and 

 a half inches broad, of a whitish colour, except on the 

 pillar-lip and margin of the pillar, which are generally dark 

 brown, and live shells are entirely covered with a brown 

 epidermis ; it has five whirls, of which the upper ones are 

 depressed, and form a flattish obtuse spire ; the aperture is 

 dilated, and the outer lip thick, white, and expanded. 



MACULOSA. 37. Shell miibilicated, slightly keeled, 

 depressed, obliquely striated, and the base 

 convex. 



Helix maculosa. Born Mns, p. 371. t. 14. f. 15 and 16. 

 Gmelin, p. 3622. 



