660 TRANS. OF THE ACAD. OF SCIENCE. 
This beautiful little fossil nearly resembles the G@. auris of 
the Upper Devonian rocks of the Eifel; but it is more con- 
vex, tapers more gradually, has a smaller umbilicus and a 
shorter aperture. 
Very rare in the Chemung rocks of Missouri. The Chou- 
teau Limestone has furnished all the specimens in the State 
Cabinet. 
OrRTHOCERAS CHEMUNGENSE, 0. sp. 
Shell smail, tapering moderately ; transverse section ellip- 
tical; septa very concave ; distant nearly half the shorter di- 
ameter; siphuncle small, central. 
Longest diameter, .64; shorter diameter, .51; distance of 
septa, .24; diameter of siphuncle, .06. 
This fossil is very like O. ovalis of Phillips (Geol. York., 
Vol. IL, p. 238); but the siphuncle is more central in our 
species. : 
Rare in the Lithographic Limestone of Marion and Pike 
counties. sega #2 
The variety Chouteauense may always be distinguish- 
ed by the comparative distance of the septa, which are sepa- 
rated only one-fourth of the lesser diameter. 
Abundant in the Chouteau Limestone of Cooper county. 
Notes oN THE GrapE-vINES OF MissovRI. 
By Gro. Exeetmann, M.D. 
In the Transactions of the Academy (p. 156 of this volume) 
Prof. Swallow has published an interesting contribution on 
the adaptation of our State to the cultivation of the grape- 
vine. 
he grape-vines proper (gen. Vitis, sect. Vitis) indigenous 
to Missount are Vitts ee and Vitis cordifolia, hie od 
numberless varieties; popularly speaking, they are 7 of 
guished as the Summer Grape and the Winter or prt 
Grape, also sometimes called Fox Grape. The va seta oh 4 
on uplands in open woods and thickets, is of smaller eye 
sions, has deeply lobed leaves with rounded sinuses 0 
