22 TRIASSIC FISHES AND PLANTS. 
nately not fully labeled. It is also to be regretted that some of their types 
and many specimens which they had studied and labeled perished in the 
destruction by fire of the geological collection belonging to the New York 
Lyceum of Natural History. 
I give below a list of the fishes of the North American Trias as far as 
yet made out. It probably includes nearly all the species which lived in the 
water basins from which the Triassic strata were deposited in New Jersey 
and the Connecticut Valley, but in the southern extension of the Triassic 
belt some new things are sure yet to be found. No one has given special 
attention to the fishes of the Richmond coal basin or those of North Caro- 
lina, but the few specimens which have been incidentally collected indicate 
considerable differences between the fish fauna of this region and that which 
I have studied farther north. By far the most common fish in the Rich- 
mond basin is Dictyopyge macrura Egt. (Catopterus macrurus W.C. R.), 
which I have not found elsewhere. With this are associated fragments of 
some other genera and species which have not yet been described. One of 
these is apparently a Dictyopyge considerably larger than D. macrura, and 
distinguished from it by having the flattened fin rays ornamented with raised 
lines. One new genus of which I have seen fragments is strongly marked 
by its relatively large, rounded, and ornamented opercula. 
In the Triassic strata of the Far West very few fish remains have been 
found. Mr. KE. E. Howell obtained from the Trias in southeastern Utah 
some detached ganoid scales, and recently Mr. R. C. Hills found at San 
Miguel, in southwestern Colorado, near the middle of the Triassic series of 
that region, several specimens of a Catopterus hardly distinguishable from 
C. gracilis, but. too imperfectly preserved for accurate determination. _Prob- 
ably when the calcareous beds which represent the Trias in Idaho shall be 
more carefully examined they will be found to contain the remains of fishes 
which may be expected to resemble those of the Muschelkalk of Europe. 
