300 AZECA. 



allied Grecian species have, and also Azeca menkeana. In 

 oblique view in the mouth the columella appears very broad, 

 and distinctly truncate at base. In old and well developed 

 specimens the lower two-thirds of the outer lip is very nar- 

 rowly but distinctly expanded, and the upper third of the lip 

 is markedly thinner. The whorl contracts more or less per- 

 ceptibly to the mouth, but less than in A. cyclothyra. 



The following form, B. politus, is probably identical with 

 zacynthia or one of the closely allied forms. Its exact iden- 

 tity probably cannot now be established and hence the name, 

 while prior to any other for a Grecian species, cannot be used. 



Bulimus politus Parreyss. : 'A species of Greece, which 

 with much resemblance in shape to B. lubricus, has the colu- 

 mella deeply truncate, and by rights should have place among 

 the Achatinse of Lamarck, or the Columns? of Perry." 

 (Porro, Malacologia terrestre e fluviale della Province 

 Comasca, Milano, 1838, p. 54, pi. 2, f. 8c). 



This form was thus briefly described and figured by Carlo 

 Porro from specimens given him by Parreyss. I have trans- 

 lated his account above, and copied his figure on pi. 47, fig. 4. 

 So far as I know this is the only information published. 

 Westerlund (Fauna iii, p. 147) places it under C. liibrica as a 

 variety, a course he surely could not have taken had he seen 

 the original account in Porro. His diagnosis applies to some- 

 thing entirely different. 



5. A. CYCLOTHYRA Boettger. PL 47, figs. 7, 8. 



Intermediate between C. zacynthia Roth and C. Integra 

 Mouss., but larger than either. Differs from the first by the 

 more oblong-ovate shell, less distinctly rimate, 6% whorls, the 

 aperture smaller for the size of the shell, nearly circular, not 

 subtriangular, the base contracted and exactly rounded; trun- 

 cation of the columella distinct, but less dentiform. It differs 

 from C. Integra by the more ventrieose shell, not in the least 

 cyliudric, the more curved base of the aperture, and the much 

 more distinct columellar truncation. Alt. 6 to 6.25, diam. 

 3 mm. (Bttg.) 



Greece: Santameri, Achaia (Conemenos). 



