THE STATE GEOLOGIST. 65 



and 1857, that we are indebted for the first really satisfactory 

 and detailed account of the Triassic fish-fauna of this country, 

 these two having described nearly all the important species. Their 

 results are embodied in ten contributions, eight by William C. 

 Redfield, the elder, and two by John R., the younger; and they 

 also brought together a valuable collection, which unfortunately 

 has not been preserved in its entirety. 



Some detached notices in regard to Triassic fishes appear also 

 in the writings of Ebenezer Emmons, 1 accompanied by a few 

 figures, but it was reserved for Professor John Strong New- 

 berry to prepare the most elaborate and, on the whole, most 

 satisfactory account of this fauna which we possess. His Mono- 

 graph, which includes not only fossil fishes, but also fossil plants 

 of the eastern United States, embodies a vast deal of painstaking 

 and conscientious labor, carried on during the latter part of an 

 active career. Since Newberry's time but little has been added 

 to our knowledge of American Triassic fishes. An important 

 memoir on the genus Semionotus, by Dr. E. Schellwien, 2 of 

 Konigsberg, appeared in 1901, in which some details and illus- 

 trations are given of two previously known species. Dr. George 

 F. Eaton, 3 of Yale University, has also furnished brief accounts 

 of several familiar forms, but pointing out a number of anatom- 

 ical characters which had been previously overlooked. A sup- 

 posed new species of Semionotus was described by the able 

 collector, S. W. Loper, 4 in 1893, under the name of "Ischypterus 

 nezvberryi," and another doubtful species, which received the 

 name of "Ischypterus beardmorei," was illustrated some years 

 later in a popular magazine by Mr. J. H. Smith, 5 formerly of the 

 Montclair High School. More recently a detached dermal spine 



1 Emmons, E., Geological Report of the Midland Counties of North Caro- 

 lina, 1856. — Report of the North Carolina Geological Survey. Agriculture of 

 the Eastern Counties, together with Descriptions of the Fossils of the marl 

 beds. Raleigh, 1858. — Manual of Geology, second edition. New York, i860. 



2 Schellwien, E., Ueber Semionotus Ag. Schriften der Phys.-Oekonom. 

 Gesellsch. zu Konigsberg i. Pr. (igoi), p. 34, pi. i-iii. 



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

 Journ. Sci., ser. 4, vol. xv. (1903), pp. 259-268, pi. v., vi. 



* Loper, S. W., On a new Fossil Fish. Popular Science News (1893). 

 5 Smith, J. H., Fish Four Million Years Old. Metropolitan Magazine, vol. 

 xii. (1900), pp. 498-506. 



5 GKOL 



