No. l8.] TRIASSIC FISHES OF CONNECTICUT. 4I 



of four or five American species of Semionotus^ The diagnosis 

 of this g-enus was further emended by Professor Gorjanovic- 

 Kramberger, still more recently, in the course of his description 

 of the Upper Triassic fish fauna of Hallein, Salzburg.^ In this 

 memoir the author set forth evidence intending to show that the 

 family position of Heterolepidotus is with the Semionotidas 

 rather than with the Eugnathidse, and that Allolepidotus of 

 Deecke is identical with Semionotus proper. 



During the same year, 1905, some revised descriptions of the 

 Triassic fishes of New Jersey were published by the present 

 writer, with incidental mention of Connecticut Valley forms.' 

 Reference was made in this paper to the totally different char- 

 acter of the Kanab Valley fish fauna (Triassic portion of the 

 Shinarump group, Powell) as compared with that of the Atlantic 

 border region, and it was pointed out that the former displayed 

 a marked Liassic aspect. That the beds which carry this fauna 

 are in reality anterior to the Lias, and probably belong to the 

 late Trias, has been recently argued by Dr. Whitman Cross in 

 the Journal of Geology for 1908. The few contributions that 

 have appeared in regard to the Triassic fishes of the Cordilleran 

 region have already been referred to in the preceding section. 



In regard to restorations of the leading genera Semionotus 

 and Dictyopyge, figures of these were published as early as 1864 

 by J. Struver, which are fairly accurate in respect to form of 

 body and fin-structures, but leave much to be desired in the 

 representation of cranial and facial bones. These figures are 

 reproduced by Freeh in his Introduction to the Mesozoic (Part 

 II. of the "Lethaea Geognostica," Stuttgart, 1903), and two 

 other illustrations of American Triassic fishes are copied in the 

 same work from Newberry's Monograph (Texttafel vi, vii). 

 No satisfactory restoration of Catopterus has yet appeared, but 

 some figures of the head portion, prepared from original draw- 

 ings by the late Professor Newberry, are now published for the 

 first time in the present Report in the section devoted to that 

 genus. (Figs. 5, 6, p. 54.) 



» Eaton, G. F., Notes on the Collection of Triassic Fishes at Yale. Amer. Journ. 



Sci., 1903. ser- 4, XV, pp. 259-268. P'- v. v'- ^^ „ . . _ , 



» Gorjanovic-Kramherger, K., Die obertriadische Fischfauna von Hallein in Salz- 

 burg. Beitr. sur Palaont. und GeoL, 1905, xviii, pp. 193-224, pl- xvii-xxi. 

 «GeoI. Surv. N. J., Ann. Rept. for 1904 (190s). PP- 67-102. 



