FAMILY COLIMACEA. 95 



Ireland. Germany appears to be its northern limit on the Conti- 

 nent. Bourgnignat refers to this genus as many as twelve addi- 

 tional species, from Sicily, Algeria, Madeira, and the Canary Is- 

 lands, described by himself under Azeca and by Cantraine, Lowe, 

 Webb and Berthelot, Both and Morelet, under Bulimus, Achatina, 

 Olandina, Ferussacia, and Tornatellina. The genus has not been 

 detected in the United States. 



1. tridens. Shell cylindrically ovate, shining, of seven whorls, 

 contracted at the base, with a small three-toothed ear- 

 shaped aperture. 



1. Azeca tridens. Three-toothed Azeca. 



Shell ; imperforate, cylindrically ovate, transparent, smooth, shining, 

 horny, spire, rather obtuse, whorls seven, com- 

 pressly convex, the last short, attenuately con- 

 tracted towards the aperture, which is small „ [A . 

 and obliquely ear-shaped, furnished interiorly Sk f% 



with three prominent teeth, and sometimes (L-ij |*j§ 



with two or more smaller teeth, lip slightly ^Mif \||' 



sinuous at the upper part, extending round the ^p) 



aperture in a continuous callous rim. v=? 



Turbo tridens, Piuteney (1799), Cat. Dorset, p. 46. pi. xix. f. 12. 

 Carychium Menkeanum, C. Pfeiffer (1828), Deutsch. Moll. vol. i. p. 70. 



pi. iii. f. 42. 

 Helix Goodalli, Eerussac (1822), Tall. Syst. p. 75 (not of Miller). 

 Pupa tridens, Gray (1820), Ann. Phil. vol. ix. p. 413 (not of Drapamaud). 

 Pupa Menkeana, 0. Pfeiffer (1828), Deutsch. Moll. vol. iii. p. 67. pi. vii. 



f. 7, 8. 

 Carychium politum, Jeffreys (1830), Trans. Linn. Soc, vol. xvi. p. 365. 

 Azeca tridens, Leach (1831), Brit. Moll. p. 122. 

 Pupa Goodallii, Mickaud (1831), Comp. p. 67. vol. xv. f. 39, 40. 

 Azeca Matoni, Turton (1831), Brit. Shells, p. 68. f. 52. 

 Achatina Goodallii, Rossmassler (1839), Icon. vol. ix. p. 33. f. 654. 

 Achatina tridens, Pfeiffer (1846), Zeitschr. MalaTc. p. 162. 

 Azeca Nouletiana, Dupuy (1849), Hist. Moll. p. 358. pi. xv. f. 12. 

 Bulimus (Azeca) Menkeanus, Moquin-Tandon (1855), Hist. Moll. vol. ii. 



f. 302. pi. xxii. f. 7 to 14. 

 Cochlicopa tridens, Jeffreys (1862), Brit. Conch, vol. i. p. 290. 

 Hob. Central Europe. England. (Widely but sparingly distributed in 



wooded districts.) 



