196 _  Miscellanies. ‘ 
Engineer —Vhe shells named in the following list have, with great 
iiberality, been presented to the cabinet of Yale College, by Mr. 
Bourne. They embrace a full series of all the shells yet discovered 
in the neighborhood of Chillicothe. They are uncommonly perfect; 
the beaks of many species, which have always been remarked as much 
worn and abraded, are in the specimens of this collection quite cov- 
ered with the epidermis. 
There are commonly from four to twelve individuals of each spe- 
cies, embracing all the varieties and discrepancies which arise from 
age, and from still or rapid water, smooth or stony bottom, and par- 
ticularly that curious structural difference of sex first pointed out in 
Vol. xxvi, p. 117, of this Journal, by Dr. J. P. Kirtland, and now 
further illustrated by the same author in the present number, p. 164. 
This local collection contains two orders, fourteen genera, ninety four 
species, and three hundred and ninety five specimens. We give the 
list of Mr. Bourne without alteration or annexing the authorities for 
the specific names he has subjoined, as follows : 
Unio alatus, Unio oriens. Helix profunda. 
-  — gibbosus. *  occidens ‘* alternata 
pa ‘¢  politus. “  fuliginosus 
*  Japillus ‘¢  pustulatus “¢  albolabris 
#  calceolus. *¢ phaseolus “  thyroidea 
‘* compressus. “  scalenius ‘¢ — multilineata. 
= : *:- rectus.  _ zaleta. 
planus. . *  perplexus, ‘¢ tridentata. 
BS -coccineus. Eee an “ -inflecta 
ae plicatus. = . gracilis. : “¢  econcava 
* — . : multiradiat iS. “ ~ Pennsylvanica. 
8. uoideus. — depigis. 
‘|  metanever a rugosa. s 
**  Jevissimus complanata. “ Virginica, 
* pyramidatus. ” edentula, canaliculata 
Bees truncata, be emicarniata 
*¢ undatus. Anodonta plana. Lymnea umbrosa 
‘*  lachrymosus. bad incerta. oo ae je 
fi securi * Ferussaciana. i decidiosa. 
abruptus Ls. aerolatu sone bicarinata. 
_* ellipsis. * Wardiana. ami igeris. 
‘* rroratus. pe ag orbs ons st ivalvis. 
4 utus. dubia. Physa olfiptica. 
= ventricosus tes paterna. “*  heterostropha. 
= biginosus, perspectiva. “aurea. 
—— Matus. ‘s  paliata Paludina decisa. 
cylindricus «  clausa. Pupa exigua 
) ¢ hirsuta. “ corticaria 
‘*  arboreus, cl 
* _ elevata. Cyclostoma lapidiana. 
**-  solitaria Ancylus rivularis. 
