THE NAUTILUS. 27 



companying photograph of six fine adults on a leaf [Plate II]. 

 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 Nc. , from Hauula, long supposed to be extinct] . 

 What do you think of that for a find ? The first trip netted me 

 40, second 13, and the last 184, 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. The} 7 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. 



" I was greatly disappointed in the Waialee district, finding 

 none of the old-timers reported from that section. 



"In the fossil bed at Kahuku I found what Montague Cooke 

 claims is a new species of Amaslra, a form between Leptachatina 

 and Amastra, small and cylindrical. 



' ' I 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." 



TURKITIDAE VS. TUEEIDAE. 



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. 



