140 THE NAUTILUS. 
I am inclined to believe that the snails of Marco were nearly 
all killed by some unusually cold spells, but that a very few 
not found by us in our early visits here have been increasing in 
numbers in the trees of the thicket in question since then.— 
CLARENCE B. Moore. 
Capt. W. D. Collier, the leading citizen of Marco for a great 
number of years, informs me that there were no Liguus snails 
at Key Marco in his early days, but that forty-eight years ago 
he brought tree snails from Middle Cape (Cape Sable) and 
‘*planted’’ them at Caximbas, Goodland Point and Marco, all 
on Key Marco. He had been that winter with Prof. Velie of 
Chicago collecting Liguus on the lower coast and on the Keys 
along Hawk Channel to Key West. They searched all those 
Keys but he never saw or heard of Liguus showing any blue 
coloring. He states that Liguus, after the planting at Marco, 
developed and spread until they became numerous, but he 
thinks they subsequently were almost killed out by severe cold. 
M. G. MILER. 
Nore ON A VARIETY OF Liauus.—In my paper on the vari- 
ations and distribution of Ziguus in Florida I figured a form 
from Lignumvite Key (pl. 37, figs. 4c, 4d) which I took to be 
a form of var. lignwmvitae, having only three specimens. Mr. 
Simpson has recently named this form Liguus solidus lineatus 
(In Florida Wilds, Frontispiece, fig. 3). He states that among 
more than a thousand specimens examined he always found it 
distinct. It appears that the name lineatus is preoccupied by 
Achatina lineata Valenc., 1833, which was based upon another 
variety of the old Liguus fasciatus. To avoid having two varie- 
ties with the same name in the same species or closely related 
species, I would propose for the shell figured on my pl. 37, 
fig. 4c the varietal name Licuus FASCIATUS SIMPSONI, the type 
being no. 128063 A. N. 8S. P.—H.. A. Pitspry. 
SHELLS OF Zion NATIONAL Park, UraH.—Fossil specimens of 
Polita indentata Say, Gonyodiscus cronkhitei Ne., and Succinea 
avara Say, imbedded in several pieces of limestone from Zion 
