——E=_7” 
mae NAUTILUS. 
Vol. XXXIV APRIL, 1921. No. 4 
A NEW ACHATINELLA FROM OAHU. 
BY HENRY A. PILSBRY AND C. MONTAGUE COOKE, 
Achatinelle of the typical section are very abundant in some 
spots on the Waianae Range. It is in fact the only place in 
Oahu where the collector finally has to stop picking, gorged 
with shells, while the bushes still hang full of them. One feels 
like Sindbad in the Valley of Diamonds. Snails of the section 
Achatinellastrum, however, are the greatest rarities. All that 
have been found up to 1920 could almost be counted on the 
fingers. A. lehuiensis Gul., and A. lehuiensis gulickiana P. & C., 
one specimen of each. A. thaanumi P. & C., two specimens; of 
A. spaldingi a few hundreds, but all from a very small area. 
The localities of these are widely scattered along the northern 
side of the range, just within the forest limit so far as known; 
each species in a single place. 
Mr. W. H. Meinecke had the good fortune to find another 
form which we rank as a sub-species of A. lehwiensis, though its 
locality is remote from Lihue, the localities of A. thaanumi and 
A. spaldingi lying between them. The new subspecies, how- 
ever, was taken in some abundance. 
ACHATINELLA LEHUIENSIS MEINICKEI. PI, 4, figs. 6-9. 
The shell differs from A. lehuiensis by the wider, more capa- 
cious form. In color it is polymorphic. The pattern selected 
