108 TRUNCATELLINA. 



T. sundleri agrees well with T. monodon. The new species 

 however has a larger shell, a much smaller columellar callus, 

 no impression on the neck and no parietal tooth standing far 

 within the aperture, such as is distinctly observable in the 

 last named species (Odhner). 



Truncatellina strobeli (Gredler). Vol. 26, p. 71, Vol. 27, 

 p. 229. 



Lothar Forcart has discussed the nomenclature in Archiv 

 fur Molluskenkunde LX, 188 (May, 1928). He quotes Gred- 

 ler 's description from III Programm des K. K. Gymnasium 

 zu Bozen, which appeared prior to September, 1853, therefore 

 prior to Benson's publication of Pupa rivierana. 



Having examined Hartmann's specimens of P. minutissima 

 preserved in the Natural History Museum of St. Gallen, For- 

 cart states that he could not confirm the presence of teeth in 

 any of the 33 examples, notwithstanding Hartmann's state- 

 ment that the aperture has one tooth. 



Forcart does not accept the earliest name, callicratis Scacehi, 

 because Scacehi stated that his species was toothless. 



Gredler 's description appears to be the first recognizable 

 definition of the species, though several earlier names are con- 

 jectured to pertain to it with more or less probability. I am 

 now disposed to agree with Forcart in brushing aside the in- 

 sufficiently diagnostic early work, noticed in Vol. 26, pp. 73- 

 75, in favor of T. strobeli Gredler. 



Perhaps "Pagodina" bourguignati Gout. (27: 179) is really 

 T. strobeli. 



Truncatellina clavella (Reinh.) Vol. 26, p. 81. 



Rosen (Mittheil. Kaukasischen Mus. Vol. 6, 1914, p. 194) 

 treats this as specifically distinct. 



Truncatellina micra (Ping). Pupa micra Ping, 1929. 

 Palaeontologia Sinica, Ser. B, VI, fase. 5, p. 18, f. 4a, b ; pi. 2, 

 f. 10a, &. Chou Kou Tien, Hopei Prov., China. "Polycene" 

 (Lower Quaternary) red clay. This genus, which was not 

 known from China before, seems indicated by the terms of 

 Ping's description. 



