36 Univalve Shells. 
sometimes covered with a greenish epidermis. It has six or seven 
whorls, of which the body whorl is very large, and constitutes half 
the length of the shell.” 
This whole region abounds with fine Helices, for which family the 
moist woodlands afford suitable habitats. The following catalogue 
of univalve shells, found on “the Reserve,” is from the pen of Dr. 
K., the whole of which are in his collection : 
Pupa eae Say. Helix fuliginosa, Grif. + 
” se si pennsylvanica, Green. 
a sabschabits ay Succinea ovalis, Say. 
thyroidus, “6s avara, « 
«© hirsuta, wal * obligua, ee 
6 = perspectiva, “ Melania depygis, # 
‘lineata, “ “ virginica, dae 
“¢ labyrinthica, “ «¢  subularis, Lea. 
‘¢ —_ multilineata, “ Lymneza elodes, Say. 
~ palliata, “ ' reflexa, se 
“«gularis, “ macrostoma,  ‘ 
“© _ligera, “ “ desidiosa, i 
o. see,  M “© stagnalis, Lam. $ 
kt CORCRTA.. of Physa __heterostropha, Say. 
* ..profanda,._.** Paludina ponderosa, = 
<¢_alternata, ._ * m decisa, ss 
“« egena, = . granosa, 
“« fallax, th Planorbis bicarinatus, “ 
tridentata, “ 33 trivolvis, «6 
‘* _ harpa, . 7 ‘¢ campanulatus, “ 
** glaphyra, =“ + . armiger, ‘ 
¢. . jnomatas.. «6 t “¢ ...exacuus, 
* “FL har fi 
tion and figure of this shell in the 
2d Vol. of Lone’ eee tothe St. Peter’s, that mis uae had described an imma- 
ture shell of some large species of Pupa. On exa g his specimen, deposited 
in the Academy of Natural a at Philadelphia, Ta me convinced that such was 
whe. Both the Pupa ova’ avand arrifera, just before ood form the perfect 
answer Mr. Say 
t “ Helix glaphyra and inornata of Say, and H. fuliginosa of Griffith, are only 
ages of the same shell, if the specimens which I have received from the 
oun conchologists be labelled correctly. When the shell is young, the 
umbilicus is contracted, and the labrum not expanded. It then is called the gla- 
phyra, Atamore advanced age, the labrum expands and forms a large aperture, 
but the umbili “a . h ged, A qe wht tag oe he - An 
