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SHUMARD—CRETACEOUS FOSSILS. 597 
There is but one specimen of this shell in the collection, 
consisting of the body and three of the succeeding volutions, 
on the latter of which parts of the shell remain attached. 
ocality.—Near Bosque Creek, Bosque County, in the 
upper division of the Upper Cretaceous Limestone, oceurring 
with Exogyra Texana and Lima Wacoensis. 
GENUS PHASIANELLA. 
P. PEROVATA, 0. sp. 
Shell ovoid, height not quite double the width; volutions 
n, gently convex; last one moderately gibbous, a 
little longer than the spire; spire somewhat rapidly enlarging 
tom the apex, spiral angle 50°-55° gently convex ; suture 
distinct, linear, not very deeply impressed; aperture oblique, 
acute above, rounded below ; surface smooth or marked with 
fine lines of growth. ; 
The measurements of the most perfect specimen (half 
grown) in the collection are, height, 1.20 inches; width, 0.70 ; 
height of last volution, 0.68. ° 
ocalities.—Inferior part of Upper Cretaceous (Caproti- 
na Limestone), Comanche Peak, and in Parker County, near 
Brazos River. 
GENUS AVELLANA. 
A. TEXANA, 0. sp. 
however, has all the external characters of Avellana. 
ength, 0.36; width, about 0.26; height of last coil, 0.29. 
Resembles Acteon concinna of Hall and Meek, but is a 
sab a shell and has fewer revolving strie. : 
ocality.—F ound in the upper part of the Cretaceous Lime- 
Stone, near Bosque Creek, in Bosque County, in connection 
with 
GENUS NATICA. 
N. ACUTISPIRA, N. Sp. 
‘Shell obli he width; spire 
quely ovate, length greater than the width; 
hot much elevated, Hote Sie Scien and acutely pointed at 
