FOSSIL LEAVES. 



721 



Fig. 46.— Pharyngeal hone of a fish, from 

 the Champlain clay, Holyoke. 



REMAINS OF FISHES. 



lu 1895 one of my class found half of the pharyngeal bone of a fish 

 La the Champlain clay 20 rods, above the old 

 oxbow of the Fort River below Hadley street. 

 It was given to me on the spot and was lost by me 

 through excess of care. It was about an inch long, 

 and the princijjal peculiarity was that the teeth, 

 which were rounded and slightly bent cones about the size and proportion 

 of a rather long lead-pencil point, were in a double row, pointing outward. 

 The outer sm-face below the teeth cmwed outward and was quite deeply 

 excavated vertically in several grooves, so that the rounded ridges, radiat- 

 ing a little, resembled the base of a tree trunk. The annexed cut, di-awn 

 from memory soon after the loss, represents the teeth quite accurately, 

 though making them a little too large for proportion. Profs. E. D. Cope 

 and Bashford Dean, to whom I submitted my di-awing, agreed that it was 

 the pharyngeal bone of a carniverous dacelike fish near Leuciscus or Rhodus.. 



MON XXIX 46 



