68 THE NAUTILUS. 
“Tt differs notably from any thing we have, and is probably, as you 
suppose, an undescribed species, unless described as a fossil. We 
have specimens of the ventricose varieties of S. Stimpsoni, which 
equal this in stoutness, and nearly equal it in curvature of the col- 
umella, but the whorls are less ventricose, the shoulder less swollen, 
the sutural region less deep, and the sculpture is very much finer.” 
Comparisons have also been made by myself with the Atlantic 
Siphos in the U. 8. National Museum, and of course with the recent 
and fossil series in the collection of the Academy. 
SHELLS OF HENRY CO., INDIANA. 
BY E. PLEAS. 
To judge from such works on the Mollusca as I have had access to, 
Indiana has not been regarded as having a Molluscan fauna worthy 
of the attention of the Conchologist. It is not often mentioned in 
giving localities. W. G. Binney in his very valuable Manual of 
Am. Land Shells, prints a list of his large collection as presented to 
the Smithsonian Institute; some 312 species and varieties, only men- 
tions a beggarly 4: Zonites fuliginosus, Patula solitaria, Triodopsis 
appressa and T. inflecta as hailing from the Hoosier State. 
I have been a student and collector of Mollusca for several years 
and have made it a point to secure our home shells first, and am able 
to present the following list collected within 5 miles of my residence 
near Dunreith, Indiana. : = 
Mesodon albolabris Say. striatella Anth. 
elevatus Say. Polygyra leporina, Gould. 
thyroides Say. Stenotrema stenotremum Fer. 
‘ var bucculenta. monodon Rack. 
Mesoden exoletus Binn. : var. leaii. 
profundus Say. var. fraternum. 
multilineatus Say. hirsutum Say. 
Sayii Binn. maxillata? Gould. 
clausus Say. Triodopsis fallax Say. 
pennsylvanicus Green. tridentata “f 
Patula alternata Say. palliata ss 
“ var. carinata. . inflecta 
perspectiva Say. appressa if 
solitaria of Zonites ligerus Say. 
