15 



of these unpublished plates have been brought to light in the Yale Museum, New Haven, by 

 Dr. Charles R. Eastman of Cambridge, Mass. Through this fortunate find Dr. Eastman has 

 been able to identify most of Jackson's types and figured specimens from among the material 

 from the above locality in the collections of the Museum of Comparative Zoology, Cambridge, 

 and of the Boston Society of Natural History. 



In the Quarterly Journal of the Geological Society of London, vol. ix, 1853, p. 115, Sir 

 Philip Grey Egerton, Bart., under the heading, "Note on the Fossil Fish from Albert Mine," 

 briefly remarks on the fossil fishes from this mine in Sir Charles Lyell's collection, and the museum 

 of the Geological Society. The opinion is expressed that they belong to the genus Palajoniscus, 

 and certain specimens are identified with Jackson's species. Sir Phihp adds that "all the 

 species from this locality are remarkable for the remote position of the dorsal fin, and the highly 

 sculptured ornamentation of the headbones and scales. They are also remarkable for the large 

 size of the scales covering the dorsal angle. Some of the larger specimens figured by Dr. 

 Jackson, especially fig. 2, pi. 1, have great resemblance to the forms of Palceoniscus, graduating 

 into the characters of Eurynotus and Amblypterus , found at Burdie House and Newhaven, in 

 Scotland. They are all quite remote in character from the Palceonisci of the Kupfer Schiefer 

 and magnesian limestone." In the same number of this Journal, on p. 110, in a paper "On the 

 Albert Mine, Hillsborough, New Brunswick," Sir J. William Dawson refers to the abundant and 

 beautifully preserved remains of fishes in the Albert shales, mostly belonging to the genus 

 Palseoniscus. 



In 1868, in the second edition of "Acadian Geology," p. 231, Sir J. William Dawson again 

 refers to these fossil fishes, and gives a figure, in the text, of Palceoniscus alberii (?) Jackson. 



In the Canadian Naturalist, 2nd series, vol. VIII, 1877, in his article entitled, " Carboni- 

 ferous fishes of New Brunswick," pp. 337-340, Dawson adds two species to the fish fauna of 

 these shales, viz., Palceoniscus {Rhaiinichthys) modulus and P jacksonii, and supplies further 

 notes on the original species P. alberti, P. cairnsi, and P. browni, from information gained 

 from additional specimens. A restored outline is given of P. modulus, with figures of the scales 

 (figs. 18a, b, c, d, p. 338). This paper also appears in the same year, without change, as part 

 of the supplement to the second edition of Acadian Geology. 



Dr. Ramsay H. Traquair had in 1877 (Quart. Jour. Geol. Soc. of London), in his paper "On 

 the Agassizian genera Amblypterus, Palseoniscus, Gyrolepis, and Pygopterus," expressed the 

 opinion that " Palceoniscus alberti, Jackson, and more especially P. cairnsi * * * 

 and some of the other small Palseoniscidffi from the Coal Measures of New Brunswick," seemed 

 to be allied to Rhadinichthys carinatus (Ag.). 



In Dr. John Strong Newberry's monograph on "The Palaeozoic Fishes of North America," 

 (15) p. 187, is to be found an enumeration of the then known species from the "Lower Carboni- 

 fereous rocks of New Brunswick." These species, which Dr. Newberry remarks are to be 

 assigned partly to the genus Rhadinichthys and partly to Elonichthys, are Palceoniscus alberti, 

 Jackson; P. cairnsii, Jackson; P. brownii, Jackson; P. jacksonii, Dawson; and P. modulus, 

 Dawson. 



