58 TRIASSIC FISHES AND PLANTS. 
margins coarsely denticulate; the fins are of moderate size, very graceful 
in their outlines and beautifully constructed and preserved. On the whole, 
these are the handsomest fossil fishes of which I have any knowledge. 
I have been somewhat in doubt whether they may not be regarded as 
the young of C. Redfieldi, with which they are associated and which they in 
some points resemble, but they present some distinct characters which they 
have in common among themselves, such as the pointed head, the round and 
vertically flattened body, the ornamented scales varying comparatively little 
in size, and the opposite position of the anal and dorsal fins. These char- 
acters have seemed to me sufficient to make this little group of fishes the 
representatives of a distinet species. The relationship of these fishes to that 
which I have ealled Cafopterus ornatus is close; the size, form, position, and 
other features of the body are the same, the only difference being the pecul- 
iar ornamentation which coyers most of the seales of C. ornatws, and is only 
faintly indicated in a very few seales of some individuals of C. minor. The 
radiating lines which mark the side scales in the present species are wanting 
or but faintly indicated in C. ornatus, but we have some traces of them in 
the much larger fishes which I have supposed to represent C. Redfieldi. 
The theory that these fishes constitute a distinct species of Cafopterus is 
confirmed by the fact that, so far as at present known, they are found at no 
other loeality than Durham, Conn., although the larger species of the genus 
are abundant at Boonton, and are sometimes met with at Sunderland. 
CATOPTERUS ORNATUS, N. sp. 
Pl. XVIII, Figs. 3, 3a, 3d. 
Fishes fusiform, five inches long by one and a quarter inches wide at 
the broadest part; head bones unknown; fins all delicate; anal opposite 
dorsal; scales rhomboidal or elliptical, of nearly uniform size, relatively 
large, external surface ornamented by raised lines parallel with the border 
and terminating in the posterior point or angle; along the dorsal median 
line is a row of ovoid scales somewhat larger than the others, marked by 
the usual raised lines parallel with the margin, and in addition a single 
raised line, sometimes beaded, which passes from the center of the scale to 
the posterior point. On the sides near the head the scales, which all show 
