326 



6, Plate XXIII; Figs. 6, 7, Plate XXIV; and Fig. 5, Plate XXIX, are 



considered as pertaining to Palaosyops paludosus. 

 A fine specimen, consisting of the greater pari, of ;i skull, exhibited l>y 

 Professor Cope to the Academy, and described by him under the name 

 of Limnohyus lavidens, appeared to me to be the same as Pa/atosyops 

 paludosus. From the Bridger Eocene formation of Wyoming. 



2. Pal^eosyops ma joe. 



Leidy: Hayden's Prelim. Eep. Geol. Snr. Montana, April, 1872,359; Pr. Ac. 



Nat. Sc. 1872, 168, 241. 

 Lymnohyus robustus. Marsh : Am. Jour. Sc. 1872, IV, 124, published in advance 

 July 22, 1872. 



I am not convinced that this is a really distinct species from Palceosyops 

 paludosus. A large number of specimens referable to the genus would 

 indicate a considerable variation in the size of individuals, of which the 

 more robust forms may have been males. The species is described on 

 page 45. The specimens regarded as. pertaining to it are represented 

 in Fig. 8, Plate XX; Figs. 1,2, 7 to 12, 14 to 16, Plate XXIII; and 

 Figs. 1 to 5, Plate XXIV. From the Bridger Eocene formation of 

 Wyoming. 



3. Pal^osyops humilis. 



Leidy : Pr. Ac. Nat. Sc. 1872, 1G8, 277. 



Probably a small species indicated by an upper molar, represented in Fig. 

 8, Plate XXIV, and noticed page 58. From the Bridger. Eocene of 

 Wyoming. 



4. Paweosyops JUNIUS. 



Palwosyops junior. Leidy : Pr. Ac. Nat. Sc. 1872, 277. 



Described page 57. From the Bridger Eocene of Wyoming. 



LIMNOHYUS. 



Limnohyus laticeps. 



Palcwsyops laticeps. Marsh : Am. Jour. Sc. 1S72, 122. 



Indicated page 58, and represented by Fig. 13, Plate XXIII. . From the 

 Bridger Eocene of Wyoming. 



