THE NAUTILUS. 31 
SHELLs OF ORLANDO, FLor1pa.—The following notes are from 
a letter received from Mr. C. H. Baker (July 21, 1915) of 
Orlando, Florida. As this is all the shells he could find in 
several years collecting near Orlando and Zellwood, Florida, it 
was thought advisable to put them on record. 
In the original description of Praticolella bakeri Van., an A. 
was printed in Mr. Baker’s name in place of an H. by mistake. 
Specimens taken were mostly along shores of some large con- 
nected lakes or head of Ocklawaha R. 
Praticolella bakeri Van. Proc. Acad. Nat. Sci., Philada., 1915, 
p. 196. 
Praticolella jeyuna Say. 
Polygyra auriculata Say. Found but once and in one locality, 
several specimens. Not seen at all for five years or upwards. 
Polygyra uvulifera Shutt. 5 
Euglandina rosea Fer. No perfect specimens taken, pretty 
widely distributed but not common, quite elegant. 
Planorbis duryi Weth. Frequent, and well distributed. 
Planorbis scalaris Jay. Frequent, varying almost to the pre- 
ceding. 
Ampullaria depressa Say. Relatively large, handsome species, 
varying a good deal in coloring, common. 
Viviparus waltont Try. Our most abundant species, seldom 
found in original ‘‘ mint’’ condition, varying much in coloring, 
somewhat handsome. Large mounds exist composed almost 
entirely of this shell (sepulchral mounds along inland water- 
ways). 
Gillia wetherbyi Dall. Quite rare, took but 1. 
Unio buckleyi Lea. Quite generally distributed. 
Anodonta gibbosa Say. Also common.—E. G. VANAT?TA. 
PUBLICATIONS RECEIVED. 
ON THE RELATIONS OF THE SECTIONAL GROUPS OF BULIMULUS OF 
THE SUBGENUS Narsiorus ALBERS. By William Healey Dall 
(Journ. Wash. Acad. Sci. X, No. 5, March 4, 1920). By cut- 
ting sections various differences in the axis were found, simple, 
