CA.TOPTERID.jE. 
3 
P. 3515. Fragment showing fine serrations on flank-scales ; Dur¬ 
ham. Enniskillen Coll. 
Catopterus redfieldi, Egerton. 
1847. Catopterus redfieldi, Sir P. Egerton, Quart. Journ. Geol. Soc. 
vol. iii. p. 278. 
1888. Catopterus redfieldi, J. S. Newberry, Foss. Fishes Trias. N. Jersey 
and Connecticut (Mon. U.S. Geol. Suit. no. xiv.), p. 53, pi. xv. 
figs. 1-3. 
Type. Nearly complete fish. 
A comparatively robust species as large as the type. Length of 
head with opercular apparatus not more than two-thirds as great as 
the maximum depth of the trunk and contained nearly six times 
in the total length of the fish ; depth of caudal pedicle equalling 
about one-third that of the abdominal region. Cranial bones 
finely granulated. Pelvic fins arising midway between the pec¬ 
torals and the anal; dorsal and anal fins nearly equal in size, and 
the former arising opposite to the middle of the latter. Scales 
mostly smooth, but sometimes in part longitudinally striated, the 
striae terminating in the coarse serrations of the posterior border 
which characterize the principal flank-scales; many of the flank- 
scales deeper than broad. 
The so-called Catopterus minor (Newberry, op. cit. 1888, p. 57, 
pi. xvii.), from Durham, Connecticut, is probably founded on young 
individuals of this species variously distorted. It is also uncertain 
whether or not Catopterus ornatus (Newberry, ibid. p. 58, pi. xviii. 
fig. 3) must be placed here. The type is a unique, much distorted, 
small specimen from Durham, which seems to have been chemically 
eroded in such a way as to display the concentric lines of growth in 
the scales. 
Form. Sf Log. Triassic : Connecticut and New Jersey, U.S.A. 
P. 3513. Imperfectly preserved specimen ; Durham, Connecticut. 
Enniskillen Coll. 
Vertically crushed specimens of Catopterus , very imperfectly pre¬ 
served, seem to have been erroneously described as representing a 
distinct species, Catopterus anguillifor mis (W. C. Redfield, Amer. 
Journ. Sci. vol. xli. 1841, p. 27, and J. S. Newberry, Mon. U.S. 
Geol. Surv. no. xiv. 1888, p. 59, pi. xviii. fig. 5), the type being in 
the Redfield Collection, Yale College Museum. The following is a 
specimen of this character :— 
P. 1019. Imperfect, vertically-crushed remains of a large fish. Tri¬ 
assic; Middletown, "Westfield, Connecticut. Egerton Coll. 
