Geology. 127 
been found here. The feather Prof. Marsh regards as a bees 
specimen, forming a most interesting addition to the bird re 
of North oop It is the distal portion of a large feather, mes 
the shaft and vane in such excellent preservation that it may per- 
haps indicate ee xigsiedialy the nature of the bird to which it 
belonged. 
My collection of fossil fishes from these shales was very large, 
and my success was mostly due to the kind aid o W. 4H 
ane a cine ame of paar who superintended the excava- 
tions on the line of the oad, and preserved from time to time 
such specimens of vale a8 came to his observation. 
Prof. E. D. Cops, a distinguished comparative anatomist of 
Philadelphia, has ray Pa may the following account of the pet- 
refied fish remains which were submitted to him for examination, 
especially for this work. Prof. Cope says: 
“The fishes cep in my hands for deferiaiantion by you, consist 
of four species, viz: one Aca ween ia ct Asineops squamifrons 
Cope, and three eicoaseeecnck: lupea humilis Leidy, Clupea 
pusilla Cope, meant levatus Cope. Those named by the 
pom ansat language the last mentioned fish is a ae kes in no 
oars. similar a: ~~ white and yellow brought to our markets. 
The nearest res ance in general structure is to be found in the 
black tae of the Obie and ‘Tennessee rivers, but a closer similarity 
in form exists in the Red Eye or Goggled Eyed perch of western 
as southern rivers, Ambloplites of Naturalists. Zoologically it 
is not very nearly related to — for it —— with some of 
their characters, others now exis onl marine fishes of 
T 
as Oey 
other families. It is an aberrant fan of the family of Cheetodons, - 
water; its nares che racter constitutes a pecularity much more 
prevalent among fresh water than marine Mahe, while its zoolo- 
ical affinities, so far as known, are altogether with marine forms. 
size this fish exceed the red eye, and was less than the black 
bass, averaging about as the yellow pere 
“The Clupeas are herring of small species, socsmrinetd less than 
the herring of our coasts. One of the blocks contains the remains 
of two small shoals of the fry, probably of Clupea humilis which 
were caught suddenly by a slide or fall of calcareous mud, and 
entombed for the observation of future students. They must have 
ate taken unawares, since they lie with their heads all in one 
direction as they swam in close bodies. One or two may have had 
