292 AZECA. 



Azeca boettgeri Andreae, Neues Jahrb. fur Min. u. Geol., 1882,, 

 ii, p. 293. Middle Eocene of Buchsweiler, Alsace. Related to 

 A. menkeana. 



Azeca peneckei Andreae, Mittheil. Roemer Mus., No. 18, p. 15 

 (= A. boettgeri Pen., not Andreae). Upper Oligocene of Reuen, 

 Steyermark. 



Azeca monocraspedon Slavic, Archivf. d. Naturw. Landesdurchf. 

 v. Bohmen, i, 1869, p. 264, pi. 6, f. 16, 17. Sandberger, 

 t. c., p. 434. Tuchoric, Bohemia, Lower Miocene. 



Azeca vitrea Klika, Die tert. Land- und Susswasser-Conch. 

 Nordwest. Bohmen, 1891, p. 75, fig. 72. Lower Miocene, 

 Tuchoric, Bohemia. 



Azeca pumila Slavic, t. c., 1869. Klika, Tert. Land- und 

 Susswasser-Conch Nordwest. Bohmen, 1891, p. 73, fig. 70. 



Azeca loxostomaKlem (Achatina /., Klein, Wurttemb. Jahresh., 

 ix, p. 214, pi. 5, f. 12), Sandberger, t. c., p. 596, pi. 29, f. 17. 

 Upper Miocene, Morsingen, etc. , Germany. 



Azeca frechi Andreae, Mittheilungen aus der Roemer Museum, 

 Hildesheim, no. 18, 1902, p. 15, fig. 7. Miocene, Oppeln r 

 Silesia. 



Azeca baudoni Michaud, Journ. de Conchyl., 1862, p. 69, pi. 

 4, f. 8, Hauterive. The aperture seems to be tridentate, some- 

 what as in A. elongata Taylor, and A. monocraspedon Slavic. 



Azeca loryi Michaud, t. c., p. 70, pi. 4, f. 7, Hauterive, i8 

 very similar to A. menkeana, but it has a higher crest behind 

 the outer lip. It is probably not in the direct ancestral line of 

 any living form, being somewhat more specialized. 



Azeca miliolum Paladilhe, Revue des Sci. Nat., Montpellier, ii, 

 1873, p 47, pi. 2, f. 13-15. Pliocene, Montpellier. Seems to 

 stand near A. baudoni. 



1. A. MENKEANA (C. Pfeiffer). PI. 46, figs. 1, 2. 



The shell is cylindric-fusiform, brownish-corneous, somewhat 

 transparent, very smooth and glossy, faintly marked with 

 growth-lines. Spire convexly conic, the apex obtuse. Whorls 

 7, nearly flat, the last tapering towards the rounded base; 

 suture distinct, but slightly impressed. The aperture is ovate, 

 vertical, obstructed by numerous teeth: on the parietal wall 



