46 TRIASSIC FISHES AND PLANTS. 
aspects and proportions of the much smaller fish now figured, and it is 
possible they are only older individuals of the same species. Of this, how- 
ever, we have no positive proof. The larger fishes referred to were con- 
sidered by W. C. Redfield as belonging to the species J. fultus, and that is 
possible ; but judging from the material I have seen I should say the fishes 
of the Connecticut Valley were more delicate in structure, with smaller and 
weaker fins, and that they will probably prove to be distinct. 
Iscuyprerus LATus J. H. R. 
Pl. XIII, Fig. 3. 
Palewoniscus latus J. H. R., Annals New York Lyceum Nat. Hist., vol. 4, Pl. I, 
without description. 
Paleoniscus latus J. H. R., Am. Jour., Sci., vol. 41, 1841, p. 25. 
The figure given by Mr. J. H. Redfield in the Annals of the Lyceum 
lacks the head and does not fully show the tail nor the fins. No deseription 
accompanies the plate in the article referred to above; the only mention of 
the species in the Journal of Science is exceedingly brief, and reads as 
follows: 
Paleoniscus latus J. H. Redfield—Broad Paleoniscus. The common length of this 
species is from four to five inches, and its width is from one and a half to two and a 
quarter inches. It is figured in the Annals of the New York Lyceum of Natural His- 
tory, vol. 4. 
Found at Westfield, Middlefield, and Durham, Conn., and Boonton, N. J. 
In the manuscript catalogue of the fossil fishes of the United States, 
read before the Association of American Geologists and Naturalists by J. 
H. Redfield, I find the following description of Palconiscus latus.- 
Fish ovate, fusiform, head obtuse, rather large, between one-third and one-quarter the 
whole length of the fish; scales small, those of the anterior portion of the body much 
deeper than long, concentrically striate, especially on the posterior edge; pectoral fins 
small and delicate; ventrals small; dorsal rather large, with anterior raylets very long, 
stout, and numerous; anal moderate, anterior raylets strong, tail forked, lobes rather 
obtuse, anterior raylets small; length four to five inches, breadth one and a half to 
two inches. 
Occurs at Sunderland, Mass.; Middletown, Conn.; Pompton and Boonton, N. J. 
The dorsal and anal fins of P. latus are far less elongated than in the other species, 
though they still preserve the strong armature peculiar to the American species of 
as 
