THE NAUTILUS. . yt 
companying photograph of six fine adults on a leaf [Plate IT]. 
I will give you six guesses, if you guess their identity I will 
send you six. As I have hinted more or less where it comes 
from, I suppose you have guessed correctly at least once out of 
the six trials, so by bearer you have your shells [they are Acha- 
tinelli elegans Nec., from Hauula, long supposed to be extinct]. 
What do you think of that fora find? The first trip netted me 
40, second 13, and the last 134, each trip representing as many 
different ridges. I consider this one of the best land-shell finds 
of the last dozen years or so. 
‘* A. bulimoides is as good as extinct. The first day netted 
me 7, second day but one. They look very much, as Wilder 
says, like a reversed rosea. The two other species we struck in 
small colonies, collecting probably a hundred of each. 
‘*T was greatly disappointed in the Waialee district, finding 
none of the old-timers reported from that section. 
‘“Tn the fossil bed at Kahuku I found what Montague Cooke 
claims is a new species of Amastra, a form between Leptachatina 
and Amastra, small and cylindrical. 
‘*T am glad that you have come to the conclusion that there 
are too many Pterodiscus named from Oahu. It was only a 
couple of weeks ago that I struck a locality west of Palikea in 
the Waianae Mts. Not the so-called Palikea where Thaanum 
found his heliciformis, according to the Manual. His locality is 
Green Peak, marked erroneously on maps as Palikea,—the same 
place where I found this species some six years ago. Palikea 
is the high peak northwest of Pohakea gap. Anyway I col- 
lected well up to a hundred of a species, samples of which I 
also send.”’ 
TURRITIDAE VS. TURRIDAE. 
BY WM. H. DALL. 
It is perhaps hardly worth while to spend much more space 
upon a question of so little real importance as that raised by 
Mr. Berry, yet as a final contribution I would point out that 
Prof. Foster admits that Turritidae is correctly formed and 
criticizes it only from the point of its meaning in classical Latin. 
