128 PROCEEDINGS OF THE ACADEMY OF [Feb., 
the Cave Creek Valley the lamelle 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 pl. XX VII, 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: 
Two lamelle: parietal and axial— 
Length. Diam, Whorls. Length. Diam. Whorls. 
10.8 ol 124 9.2 3 112 
10.8 3 124 9.2 2.9 114 
10.4 ok 124 9.1 3 112 
10.5 3 12 9.1 3 114 
10:1 3 12 aa 3 114 
10 3 124 9 3 114 
10 3 12 9 3 114 
10 3 12 9 5) 114 
10 3 113 9 a 114 
9.9 | 12 9 3 114 
9.9 3 114 9 3 114 
9.8 3 12 9 3 114 
9.8 3 12 9 s 11 
9.7 a 114 9 3 1a 
9.6 3 12 9 3 11 
O°5 oul 114 8.9 3 11 
9.5 a 112 8.9 3 1a 
9.5 3 114 8.7 3 103 
9.5 3 114 8.6 20 11 
9.5 3 114 8 2.9 104 
9.3 3 114 
One lamella: the axial— 
Length. Diam. Whorls. Length. Diam. Whorls. 
10.6 ond 124 9 3 Lt 
10 out 113 9 3 102 
10 3 12 8.9 3 114 
9.9 3.1 114 8.9 al 11 
9.5 3 12 
Holospira chiricahuana ternaria n. subsp. Pl. XIV. figs. 1-4. 
At the end of the penultimate whorl there are usually three internal 
lamellee: parietal, axial and basal. Shell usually larger with more 
whorls, but otherwise as in the type. 
EL ————— 
