FOSSIL FISHES. 385 



In concluding the descriptions of such of the living fishes of the State as I have been 

 enabled to procure, and which is very far from exhausting the list, a notice of the fossil species 

 would appear to be necessary. It is, however, remarkable, that although numerous species 

 are found in the neighboring States of Massachusetts and Connecticut on the one hand, and 

 New-Jersey on the other, none, until very recently, have been detected in this Slate.* At 

 present, one species only, the Holoptychius nobilissimus, is positively known to be found 

 within our limits. The following list may be found useful to the student of our fossil ich- 

 thyology. In drawing it up, I have to acknowledge my obligations to J. H. Redfield, who, 

 together with his father Mr. W. C. Redfield, have most largely contributed to the stock of 

 our knowledge on this subject. 



GENUS HOLOPTYCHIUS. Agassiz. 



1. H. nobilissimus. Am. Jour. Science, Vol. 38, p. 89. — Murchison, Silurian System, 



Vol. 2, p. 599, pi. 2, figs. 1, 2, 3, 4, 8, 9. 



Old red sandstone. Blossburgli, Pennsylvania; New-York. 



GENUS PAL^ONISCUS, Agassiz. 



2. P. fzdttis. Agassiz, Poiss. Fossiles, Vol. 2, pp. 43, 102, pi. 8, f, figs. 4, 5. — Hitch- 



cock, Am. Jour. Vol. 6, p. 77. — In. Rep. Geol. Mass. 1st ed. p. 236, pi. 14, 

 fig. 46. — W. C. Redfield, Am. Jour. Vol. 41, p. 25. 



New red sandstone. Sunderland {Mass.) ; Middletown and Durham {Conn.) ; 

 Boonton {N. Jersey.) — Pompton {N. Jersey), W. C. Redfield, Am. Journal, 

 Vol. 44. 



3. P. latus. J. H. Redfield, Ann. Lye. Nat. Vol. 4, p. 39, pi. 2. — W. C. Redfield, 



Am. Jour. Vol. 41, p. 25. — Eurynolus tenuiceps ? Agassiz, Poissons Fossiles, 

 Vol. 2, p. 159, pi. 140, figs. 4, 5. — Hitchcock, Am. Jour. Vol. 6, p. 77 ; Rep. 

 Geol. Mass. p. 236, pi. 14, figs. 45, 48. 



New red sandstone. Sunderland {Mass.) ; Middletown and Durham {Conn.) ; 

 Bounton {N. J.) — Pompton {N. Jersey), W. G. Redfield, Am. Jour. Vol. 44. 



4. P. macropterus. W. C. Redfield, Am. Jour. Vol. 41, p. 25. 



New red sandstone. Sunderland {Mass.) ; Middletown and Durham {Conn.) ; 

 Boonton {N. J.) 



* Since the above has been in the hands of the printer, I have received the following interesting communication from 

 Mr. W. C, Redfield: 



"Although the genera PaltEoniscus and Catopterus have not been found in New- York, the new rod sandstone, or 

 " 'middle secondary' of Prof Rogers, to which they are peculiar, extends through Rockland county from the flank of the 

 " Highlands to the Hudson river, and the boundary line bttween New- York and New-.Terscy, and occurs also in Orange 

 " county in the vicinity of Long pond. From the position and line of strike of the New- Jersey fish beds, it would ap- 

 " pear probable that these fossils should be found in Rockland county. Two of the fish beds alluded to have indeed been 

 '■ lately discovered near Eamapo, about ten miles from the Stale boundary. I have obtained from these beds, two or three 

 " new species of PalKoniscus, one of which bears a close resemblance to the P. ckgans of Mr. Sedgwick, which is found 

 " in the magnesian limestone or new red formation of England." 



Fauna — Part 4. 49 



