THE NATURAL HISTORY SURVEY. iG 
Remarks: Profunda closely resembles multilineata Say when 
both are young, being umbilicated and with numerous spiral 
color lines. In mu/tlineata the band just above the periphery 
is narrow, while in profunda it is very wide. When adult the 
former is zmperforate while the latter is wedely umbilicated. This 
is one of our most abundant mollusks, and is the finest and 
largest of the Helices inthis region. Itis very bold in captiv- 
ity, allowing its captor to pick it up without retracting into its 
shell. If the term could be applied to mollusks, I should say 
that it was of an inquisitive turn of mind, for it investigates 
everything within reach. A single specimen (Pl. xxix, Fig. 8) 
was found at Wolf Lake by Prof. W. K. Higley, in 1888, which 
is very curiously distorted; the superior part of the peristome, 
near the body-whorl, is very much bulged, and the lip at 
this point projects in a tooth-like manner; the periphery, from 
the aperture to a point half way around the last whorl, is con- 
cave, or grooved. Theanimal must have suffered some injury, 
probably from the pressure of some foreign object. This is, 
next to Pyranudula alternata, our most common species, and is 
found everywhere. It may be collected in the Bowmanville 
woods by hundreds, about old moss-covered logs, and particu- 
larly about old camp-fires where there is some charred wood 
It varies greatly in coloration, from light colored to very dark 
with a wide band. 
54a. Polygyra profunda alba Walker. 
Polygyra profunda alba WALKER, Terr. Moll. Mich., p. 12, 1899. 
The variety differs from the type in being pale horn colored 
without bands. Variety a/ba is not common inthis region, and 
has been found only at Joliet and Bowmanville. 
55. Polygyra albolabris Say, pl. xxix, fig. 6. 
- Helix albolabris Say, Nich. Encyl., Am. ed., pl. i, fig. 1, 1817. 
Felix major BINNEY, Bost. Journ. Nat. Hist., Vol. I, p. 473, pl. xii, 
1837. (Variety.) 
Hlelix rufa DE Kay, N. Y. Moll., p. 44, pl. iii, fig. 30, 1843. (Vide 
W. G. Binney.) 
Polygyra albolabris maritima PILSBRY, The Nautilus, Vol. V, p. 142, 
1892. (Variety.) 
Hlelix trahsversensis LEACH, Mss., The Nautilus, Vol. XI, p. 94, 1898. 
Polygyra albolabris minor STERKI, Land & Fr., W. Moll., Tuscar. 
Co., Ohio, p. 2. (Variety.) 
Polygyra albolabris alleni WETHERBY, The Nautilus, Vol. XI, p. 94, 
1898.* (Variety.) 
*The original reference to this variety has not been found in any work to which the 
author hasaccess. This is also true of P. thyroides pulchella ckll. 
