TRUNCATELLINA. 105 



Vertigo genesii Gredler subsp. gei/eri Lindholm, Arehiv fiir 

 MoUuskenkunde, LVII, 1925, p. 241-251, fig. 



The passages quoted from Geyer in Manual Vol. 25, p. 205, 

 evidently refer to V. g. geyeri. According to Lindholm, in all 

 three Russian localities this form occurs without mixture with 

 the typical toothless V. genesii. Grown specimens differ from 

 V. antivertigo and V. lilljehorgi (with which they agree well 

 in luster, sculpture and color) by the entire absence of the 

 cervical crest. In V. pygmaea var. callocarens the two palatal 

 folds are united by a palatal callus, not developed in V. g. 

 geyeri. 



TRUNCATELLINA (Vol. 26, p. 58). 



Vol. 26, p. 63, third line: for '' Truncatella " read Trun- 

 catellina. 



TRUNCATELLINA CYLINDRICA (Fcr.) (Vol. 26, p. 65). 



Odhner states that the types of Pupa odontostoma Wester- 

 lund (Vol. 26, p. 78) in the Museum at Gothenburg are in all 

 respects identical with T. cylindrica. The sculpture is of 

 similar riblets, not striae as stated in the description, and the 

 aperture shows no trace of teeth. It is not even a variety. 

 Esmark agrees with this synonymy, (c/. Arkiv f. Zoologi, vol. 

 16, No. 29, 1924, p. 4; Skrifter Norske Videnskaps-Akad. i 

 Oslo, 1925, p. 118). 



TRUNCATELLINA CYLINDRICA COSTIGERELLA Lindholm. 



Differs from the type by the costulate (not striate) shell, as 

 in T. costidata Nilss. Size, color and aperture as in the type. 



Crimea: widely distributed, for instance at Kisil-Koba; 

 Nishnjaja Massandra; Merdwen, and other places. 



Truncatellina cylindrica (Fer.) var. costigerella Lindholm, 

 Archiv f. MoUuskenk. LVIII, 1926, pp. 166, 176. 



" Together with specimens of T. cylindrica Fer. typical in 

 sculpture, size and coloring, a second form occurs in the 

 Crimea, not specifically separable from T. cylindrica, but dis- 

 tinguished distinctly from German, French and Russian ex- 



