128 



PROCEEDINGS OF THE ACADEMY OF 



[Feb., 



the Cave Creek Valley the lamellae seem to be constant, so far as we 

 can judge from the limited material taken. It must be remembered 

 that many other colonies doubtless exist. 



The additional locality, "Fort Bowie," given in our original account, 

 was evidently due to some mixture of labels or specimens. Thorough 

 search in 1906 showed that it does not occur there. The large specimen 

 represented in pi. XXVII, fig. 26, of our paper of 1905, was probably 

 not from the type locality, but picked up somewhere else in Cave 

 Creek Valley. 



Fifty specimens opened, taken at random from a lot of several 

 hundred topotypes, measure as follows: 



Holospira chiricahuana ternaria n. subsp. PI. XIV. figs. 1-4. 



At the end of the penultimate whorl there are usually three internal 

 lamellae: parietal, axial and basal. Shell usually larger with more 

 whorls, but otherwise as in the type. 



