No. l8.] TRIASSIC FISHES OF CONNECTICUT. 5 1 



Palaeoniscid-like, and still carries a few minute teeth. Remains 

 of the same species are common to both the New England and 

 New Jersey areas. 



Catopterus redfieldi Egerton. 

 (Figs. 5, 6.) 



1847. Catopterus redfieldi Sir P. G. Egerton, Quart. Journ. 



Geol. Soc, iii, p. 278. 

 1888. Catopterus redfieldi J. S. Newberry, Monogr. U. S. 



Geol. Surv., xiv, p. 53, pi. 15, figs. 1-3. 

 1895. Catopterus redfieldi A. S. Woodward, Cat. Foss. 



Fishes Brit. Museum, pt. 3, p. 3. 

 1903. Catopterus redfieldi, F. Freeh, Lethaea geognostica, 



Part 2, Trias, p. 12, text-pl. 7, fig. 2. 

 1905. Catopterus redfieldi C. R. Eastman, Ann. Rept. Geol. 



Surv. N. J. for 1904, p. 98. 



This species is described by its founder as " broader than the 

 preceding [C. gracilis], and with scales not so long in proportion 

 to their depth." The original definition has been supplemented 

 by a number of differential characters observed by Newberry, 

 and the extended description given by the American author has 

 been condensed by Smith Woodward into the following para- 

 graph : 



"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 

 equaling about one-third that of the abdominal region. Cranial 

 bones finely granulated. Pelvic fins arising midway between the 

 pectorals and 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." 



Neither in this nor in any other species of Catopterus has the 

 structure of the head and shoulder-girdle been satisfactorily 

 worked out, these parts being as a rule too imperfectly preserved 



