52 THE NAUTILUS. 
upon examination that they were brought here in earth in flower 
pots, though from what locality I could not fix. The banded form 
was first introduced, like that in the top of the box sent by this mail. 
I have planted several colonies in this region and they have all 
done well and are breeding rapidly; as evidence of this I collected 
over 400 specimens in about one hour’s time in a circle, the radius 
of which was not more than 25 yards. I send by this mail a small 
box containing the different varieties of color and stripe collected 
up to date. If you can give me the names of any parties who would 
be interested in them, it will give me great pleasure to send speci- 
mens.” 
The series comprises many of the band combinations seen in 
European specimens. ‘The shells seem to be indistinguishable from 
natives of the old world. The English conchologists have attempted 
to catalogue and name the color varieties of these five-banded 
snails—the Pentatenia of Schmidt—and with a view to ascertaining 
just what forms are represented in America, I sent the specimens 
from Lexington to Mr. T. D. A. Cockerell, of West Cliff, Colorado, 
who kindly furnished me the list of some fifteen named forms. Mr. 
Cockerell writes: “The specimens could not in any way be dis- 
tinguished from those of Europe. It will be interesting to compare’ 
another series with the present from the same locality five or ten 
years hence, and see whether the environment has greatly affected 
the variation. Indeed, it would be good to collect and catalogue 
say two hundred and fifty specimens every year, if they are nu- 
merous enough,” 
It would be interesting to observe whether the several color 
varieties intercross freely, or prefer to breed with individuals of 
their own color-pattern, and so perpetuate and intensify the color- 
races. If the latter be true, it will tend to establish the theory of 
“divergent evolution through cumulative segregation,’ by which 
Mr. Gulick explains the divergence of the numerous species of 
Achatinella inhabiting the same districts of the Sandwich Islands, 
and living apparently under identical environments. 
SCALARIA ANGULATA IN NEW JERSEY. 
Ep. Nautiuus, Dear Sir: 
In response to the request appended to the catalogue of Southern 
New Jersey Marine Shells, pubiished in the July number of the 
