372 ADDITIONS AND CORRECTIONS. 



CHONDRINA ARAGONICA (Fagot). P. 54. P. saltus (p. 51) 

 is a form of this according to the authors mentioned above 

 (op. cit., p. 97). 



VERTIGO ALABAMENSIS CONECUHENSIS, p. 80. The authority, 

 Clapp, should be substituted for "n. subsp." 



VERTIGO OVATA Say. P. 82. 



This species occurs also in the southeastern U. S. Virginia, 

 western North Carolina, Georgia and Florida (Sterki collec- 

 tion) ; Florida at Snapper Creek hammock, Dade Co., Lower 

 Matacumbe Key and Madeira hammock near the end of the 

 peninsula (Geo. H. Clapp coll.). 



VERTIGO VENTRICOSA. P. 94. 



Dr. Sterki writes: "I believe that V. ventricosa is closely 

 allied to V. ovata, not to V. pygm&a. I have repeatedly had 

 forms in doubt between the two. Both have essentially the 

 same formation of the palate, and there are small ovata with 

 a slight palatal callus, occasionally no infraparietal and a 

 barely vestigeal angular lamella." 



VERTIGO HEBARDI Van. P. 103. 



Additional localities are: Elliott's, Pumpkin, Lignum Vitae, 

 No Name, Big Pine and Little Palo Alto keys, off south and 

 southeastern Florida, Geo. H. Clapp collection. 



VERTIGO CONCINNUDA Ckll. P. 121. 



The shells illustrated in fig. 1 are from Willow Creek, 

 Mogollon Mts., New Mexico; x 15. 



VERTIGO MODESTA (pp. 123-134). 



On p. 134 a race of V. modesta from near Bluff Lake in the 

 San Bernardino Mts., California, was discussed. It was fig- 

 ured on p. 124, figs. 8, 80, 8&. Without locality it would not 

 be possible to separate some specimens from. V. m. castanea, 

 while others would be as near V. m. parietalis. These ex- 



