51 
PHOLIDOPHORID^. 
Phoiidophorus, Agassi:. 
,, gregarius, sp. nov. 
(?) Peltopleurus, K ner, 
„ (?) dubius, sp. nov. 
An examination of this list at once demonstrates that the Eanna is of 
early Mesozoic age, and as only one rhomhic-scaled ganoid with a semi- 
heterocercal tail {Acentrophorus'^) has hitherto hecn discovered helow the 
Trias, it will suffice to institute comparisons with the known Eish-fannas of 
Triassic, Rhactic, and Liassic date. 
Little is known of the fossil fishes of the Lower Trias (Bnnter) of 
Europe, only two species {Dicfijopyge rhenana, and Semionotiis alsaticus) 
having been definitely determined from the valley of the Ehine.^ Erom the 
Mnschelkalk and Lettenkohle, however, numerous species are more or less 
satisfactorily described. In addition to teeth of Selachians and the Lipnoan 
Ceratodiis, Agassiz^ described many fragmentary remains of Ganoids from 
the Continental Mnschelkalk. II. von Moyer, ^ P. Gervais,'"’ E. E. Schmid,'’ 
and others made similar contributions. IV. Dames^ has considerably extended 
our knowledge of Cxijrolepis, CoJohodm, and Serrolejjls, besides adding a 
previously unknown Lepidosteoid genus, Crcnilcpis ; and quite lately IV. 
Leecke'^ has described an extensive series of fishes from the ]\Iuschelkalk 
of Perledo, on the Lake of Como, already briefly noticed by Pellotti." 
In the European Upper Trias, or Keuper, fossil fishes are still more 
numerous and have been described from various localities in England, Ireland, 
and Germany, from Seefeld in the Tyrol, and from Paihl in Carinthia. Sjiecies 
of DictyopygeP SemionotiisP and a Dapedioid genus, Dlpteronotiisp are 
* R. H. Trai|uair, Quart. .Journ. Geol. Soc. , 1877, Vol. xxxiii, pp. 5()2-r)(i5. 
^ W. Deecko, “ Fische aus dem ]5untsandsteine lies Rlieintliales,” I’al.ieontographica, 1889, Vol. xxxv, 
pp. 98-108, Rl. vi, ligs. 1, 11. 
^ L. Agassiz, Recherclies sur les Poissons Fossiles, 1843, Vol. ii, passim. 
^ H. von Meyer, “ Fossile Fische aus deni Mnschelkalk von .Tena, ()uerfurt und Esporstiidt,” and 
“Fische, etc., aus dem Mnschelkalk Oberschlesiens,” Paheontographica, 1849, Vol. i. 
“ P. Gervais, Zoologie et P.aloontologie Francaises, 1st. edit. 1852. 
E. E. Schmid, “ Die Fischzahne der Trias bei .lena,” Nova Acta Acad. Gies. Eoop.-Car. , 1801 , Vol. xxix, 
No. 9. 
"• \V. Dames, “ Die Ganoiden des deutschen Muschclkalks," Pal. Abhandlungen, 1888, Vol. iv, pt. 2. 
W. Deecke, “ Fische aus den schwarzen Schiefern von Perledo,” Paheontographica, 1889, Vol. xxxv, p)i. 
110-13.3, with ligs. 
^ C. Bellotti, “ Descrizione di Alcune Nuove Specie di Pesci Fossili di Perledo e di Altre Localita 
Lomharde,” in A. Stoppani, “ Studii Geol. e Paleout. Lombardia,” 1857, pp. 419-438 (without ligs.) 
Dictgopyge supersies, Egerton sp. 
*' E. T. Newton, “On the Remains of Fishes from the Keuper of Warwick and Nottingham,” Quart. 
Journ. Geol. Soc., 1887, Vol. xliii, pji. 537-5.39, PI. xxii, figs. 1-8. 
Sir Phillip Egerton, “On a Fossil Fish from the Upper Beds of the New Red Sandstone at Broms- 
grove,” Quart. Journ. Geol. Soc., 1854, Vol. x, pp. 307-371, PI. xi. 
Hit 74—90 K 
