172 NEW YORK STATE MUSEUM 



that complete individuals attained a length of about 15 cm. Similar 

 detached scales are reported also from the Genesee shale at Glenville, 

 N. Y., and in the equivalent Black slate of Kentucky. 



Rather better preserved than any of the last mentioned remains, yet 

 unfortunatel)' not affording precise indications of its relationships, is the 

 trunk and imperfect head portion of a small, thick scaled, and relatively 

 large finned Palaeoniscid fish from the Chemung of Warren, Pa. The 

 squamation of one of the counterparts of this example is photographed in 

 natural size in plate 9, figure 4, and an enlarged view of the abdominal por- 

 tion in which the fins and dorsal ridge scales are well displayed, is given in 

 plate 4, figure 1 1. Directly below in the same plate is shown an enlarged 

 view of one of the pectoral fins, in natural association with the distorted 

 plates of the jugular region. The form of body, position of fins and minute 

 scale characters agree somewhat closely to the corresponding features of 

 several small species of Rhadinichthys described by Dr Traquair from the 

 Lower Carbonic (Calciferous sandstone series) of Scotland.' Nevertheless, 

 owing to the present condition of the specimen, and the fact that it thus far 

 remains unique, materials are lacking for framing a satisfactory specific 

 diagnosis, or even for affirming with certainty that it belongs to the genus 

 Rhadinichth)'s. Under these circumstances it appears inadvisable to desig- 

 nate it by a distinct specific title. It is greatly to be hoped that further 

 search may be rewarded by the discovery of more perfect material of this 

 nature. 



' Traquair, R. H. Report on Fossil Fishes collected by the Geological Survey of 

 Scotland in Eskdale and Liddesdale. Roy. Soc. Edinburgh Trans. 1881. v. 30, pt i, p. 

 15-71- 



