44 7. M. Wheatley on Mesozoic Red Sandstone and 
FISHES. 
Single ganoid scale, in black bituminous shales, at Gwynned, Isaac 
Lea, this Jour., [2], vol. xxii, 128, 1856, “more like Pygopteris mandi- 
bularis Ag., than any other which had come under Mr. Lea’s notice.” 
Scales, bones an teeth of ganoid fishes are abundant in black bitu- 
minous sha les at Phoenixville. Scales have been found by Dr. Leidy 
also at Sere, Proc. Acad. hg ye Phil., 9 June 1857. 
Turseodus acuius, Leidy, Pro cad. Nat. Sci. Phil., June, 1857, 
page 167, “ This genus and ‘peat are se feuded upon a left dental bone 
with teeth, probably of a ganoid fish which I obtained from the black 
shale of what have been usually snail the Triassic: rocks from near 
Pheenixville, Chester Co., Pa. The dental bone is 20 lines long, by 4 
lines in depth ; posteriorly, it is straight, and its outer surface is covered 
with fine, interrupted ridges, such as are observed upon small ganoid 
scales, found i in the same series of rocks at Gwynned.” 
“Upon the dental border of the specimen shake may be counted the 
remains of 20 teeth, situated at irregular intervals, they have measured 
m 4to 1 line long, they are columnar in form, slightly curving in- 
ans have reading base, and an abrupt, conical, enamel summit, 
the fish may be allied to Belonostomus, or pe acid but IT am unable 
to ascertain the exact form of the teeth i in these gene 
Radiolepis speciosus, Emmons. Family Cabbeanthi scale discovered 
at Gwynned, by Isaac Lea, in black bituminous shales, Proc. Acad. Nat 
Sci. Phil, 7 July, 1857, also at Phoenixville. 
atop erus gracilis, Redfie ld. Scales, bones and teeth similar to those 
from Bishegonek: Va., and North Carolina, are found in bituminous shales 
at Phoenixville. 
REPTILIAN REMAINS. 
Clepsisaurus Pennsylvanicus, Lea, yee 5 Acad. ey Sci, Phil., new 
series, vol. ii, 1853, p. 185, founded on v rtebra, ribs and teeth discovered 
in calcareous conglomerate, upper Milford A oaabie ates county, teeth 
supposed to belong to this reptile have been discovered by Dr. Leidy in 
black bituminous shales at Phoenixville, Proc. Acad. Nat. Sci. Philad, 
1859, 
Re iorws serridens, Leidy, Proc. Acad. Nat. Sci. Phil., 1859, p. 110, 
founded on tooth “ large size, compressed, conical, opposite acute serru- 
lated belied, ” discovered by Prof. Leidy in black bituminous shales, 
pirical 
rus —— idy, Proc. Acad. Nat. Sci. Phil., 1859, p. 110, 
fouidse on tooth Wasesnes by Prof. J. Leidy in black bituminous shales 
at Pheenixville, “borders Me serrulations, base fluted” “ resembles the 
teeth of Composau urus of the coal of Cha th am Co., North Carolina, but 
re belongs to a different species 
Centemodon sulcatus, Lea, Pro c. Acad. on Sci. Phil., vol. viii, p. ity 
‘es 1856, founded on a wae tooth discovered by Mr. Lea in bla ok 
ge ee shales at Pheenixville, described in this Journal, [2], vol. xxii, 
Ps Bones and teeth probably Batrachian, found by Dr. Leidy at Gwynned, 
Proc. Acad. Nat. Sci. Phil., 16 June, 1857, in black bituminous shales, 
also at Pheenixville. 
