18 



DESCKIPTION OF SPECIES. 



Ehadinichthys alberti, (Jackson.) 



Plate III, figs. 1-6. 



Palceoniscus alberti, Jackson, 1851. Report on the Albert Coal Mine, etc., Boston, p. 22, plate I, 

 fig. 1, plate II, figs. 2, 2 bis, 3, 4, 5, 8, and 6. 



Palceoniscus cairnsii, Jackson, 1851. Ibid, plate I, fig. 3. 



" alberti, Jackson, 1852. Description of five species of fossil fishes, Proc. Boston Soe. 



of Natural History. Vol. IV, p. 138. 



Palceoniscus cairnsii, Jackson, 1852. Ibid. p. 139. 



" alberti and P. cairnsii, Egerton, 1853. Quart. Jour. Geol. Soc, vol. 9, p. 115. 



" alberti, Dawson, 1868. Acadian Geology, 2nd edition, p. 131, fig. 62. 



Rhadinichthys alberti and R. cairnsii. Traquair, 1877, Quart. Jour. Geol. Soc, Vol. XXXIII, p. 

 559. 



Palceoniscus alberti and P. cairnsii. Dawson, 1877. Canadian Naturalist, new series, vol. 8, pp. 

 338 and 339. 



Palceoniscus alberti, Dawson, 1878. Acadian Geology, 3rd edition, p. 231, fig. 62; supplement 

 (P. alberti and P. cairnsii,) p. 100. 



Palceoniscus alberti and P. cairnsii, Newberry, 1889. Palaeozoic Fishes of North America, Mono- 

 graphs U. S. Geol. Survey, vol. XVI, p. 187. 



Rhadinichthys alberti. Smith Woodw&vd, 1891. Cat. Fossil Fishes British Museum, part II, p. 

 465. 



Rhadinichthys cairnsi, Smith Woodward, 1891. Ibid. p. 465. 



" alberti, Eastman, 1908. Devonian Fishes of Iowa, Iowa Geol. Surv., vol. XVIII, 



p. 261. 



Rhadinichthys cairnsi, Eastman, 1908. Ibid. p. 261. 



This species is the first of the Albert mine fishes described by Jackson. 



The original description of the species', as it appeared on page 22 of the " Report on the Albert 

 Coal Mine," is as follows: — 



"PI. I, Fig. 1. This fish is the first one that was discovered by me at the Albert mine. 



'Aa the Report on the Albert Coal Mine is not readily accessible to all, the original descriptions of Jackson's other 

 named species {Palmniscus Brownii and Palceoniscus cairnsii) will be quoted at length, in the following pages, where they 



