EASTMAN: CATALOG OF FOSSIL FISHES IN CARNEGIE MUSEUM. 369 



13. Microdon egertoni (ThioUiere) . (PL LIV, fig. 1.) 

 1854. Pycnodus egertoni ThioUiere. 



Poiss. Foss. Bugey, Pt. I, p. 24, PI. VII, fig. 2. 

 1856. Microdon egertoni J. J. Heclcel. 



Denkschr. K. K. Akad. Wiss. Wien, Math-Natur. CI., Vol. XI, p. 201. 

 1860. Microdon egertoni A. Wagner. 



Gelehrte Anzeig. K. Bay. Akad., Vol. I, p. 396. 

 1895. Microdon egertoni A. S. Woodward. 



Cat. Foss. Fishes Brit. Mus., Pt. Ill, p. 226. 



Type. — Nearly complete fish; Lyons Museum. 



A species of small or moderate size, closely resembling M. elegans, but stated 

 to be distinguished from it in not exhibiting any angulation of the frontal profile, 

 and in having fewer vertebrae. As remarked, however, by Dr. A. S. Woodward, 

 the first character " may be due to imperfect preservation, and the second is 

 difficult to observe with certainty " (J. c, p. 226). 



The following suite of specimens belonging to this species is contained in the 

 collection of the Carnegie Museum: Nos. 4085, 4557, 5106, 5107. 



14. Microdon sauvanausi (ThioUiere). (Plate LIV, fig. 2.) 

 1850. Pycnodus sauvanausi ThioUiere. 



Ann. Soc. Sci. Phys. et Nat. Lyon [2], Vol. Ill, p. 131. 

 1854. Pycnodus sauvanausii ThioUiere. 



Poiss. Foss. Bugey., Pt. I, p. 15, PL IV. 

 1856. Microdon sauvanausii J. J. Heckel. 



Denkschr. K. K. Akad. Wiss. Wien, Math-Natur. CL, Vol. XI, p. 201. 

 1895. Microdon sauvanausi A. S. Woodward. 



Cat. Foss. Fishes Brit. Mus., Pt. Ill, p. 226. 



Type. — Nearly complete fish; Lyons Museum. 



" A large species attaining a length of about 60 cm. Maximum depth of trunk 

 apparently equalling about half of the length of the head and trunk without caudal 

 fin; head with opercular apparatus occupying somewhat more than one-quarter of 

 the total length of the fish. Each premaxilla with two chisel-shaped teeth, [other 

 teeth imperfectly known]. Scales apparently confined to the more anterior part 

 of the trunk." (A. S. Woodward, I. c, Pt. Ill, pp. 225-6). 



This species is represented in the Bayet Collection of the Carnegie Museum 

 by a single specimen of moderate size, fairly weU preserved, with the exception of 

 the anterior part of the head, and cataloged as No. 4666. This and the next 



