1900.1 HAY—-VERTEBRATES OF CARBONIFEROUS AGE. E17 
ELONICHTHYS PELTIGERUS? Newberry. (Plate VII.) 
Llonichthys peltigerus, Newberry, J. S., Proc. Acad. Nat. Sct. 
Phila., 1856, p. 98; Woodward, A. S., Cat. Foss. Fishes, 
Pt) ily 1891, Pp. 90: 
Paleoniscus peltigerus, Newberry, J. S., Geolog. Surv. Llinois, 
li, 1606,.p. 175 ‘Geolog. Surv. “Ohio, iu, Pt. i, 1873, p. 345, 
Pl. xxxviil, Figs. 1-1”. 
The illustrations of the above species of fossil fish presented by Dr. 
Newberry were all derived from the same specimen, one presumably, 
but not certainly, from the Carboniferous shales of Linton, Ohio. 
Mr. A. S. Woodward, as cited above, states that the type speci- 
men is in the collection belonging to Columbia University, of 
New York; but a search for it, kindly permitted by Dr. Bashford 
Dean, has not rewarded me with a view of it. Dr. Newberry says 
that he has obtained specimens of the fish from various localities in 
Ohio, Indiana and Illinois, those from the last State being credited 
to Fulton county. With several specimens in his hands, he ought 
to have been able to avoid any serious errors in his statement of the 
specific characters. Nevertheless, it is unquestionable that some 
errors did creep into his description and figures; and if the fishes 
before me belong to his species there is involved a number of errors. 
In my hands are specimens of a species of E/omichthys which 
were obtained at Mazon creek, Illinois, by Mr. Daniels. These 
are contained in iron-stone nodules and are nearly all somewhat 
imperfect. The best is one which has a length of 137 mm. In 
this specimen the head is badly crushed, the region in front of 
the dorsal fin is injured, the extreme tip of the tail is gone, and there 
is a piece broken from the body just below the front of the dorsal 
fin. All the fins are shown pretty satisfactorily. This has the col- 
lector’s No. 1 on it. No. 2 shows a fish which has been badly 
macerated and crumpled, but the ornamentation of the scales is 
well displayed. No. 3 isa young fish 50 mm. long and well pre- 
served. No. 4 isa much disturbed fish showing only some scales, 
the pectoral and caudal fins. No. 7 consists of only the upper 
lobe of the caudal fin, but it shows well the striated fulcra, the 
caudal scales and the caudal rays. 
Besides this material, I have found in the collection of Colum- 
bia University another specimen evidently of the same species, from 
Mazon creek, Illinois, and this is labeled in Dr. Newberry’s 
handwriting ‘‘Paleoniscus peltigerus.’’ 
