274 PALiEONTOLOGY. 



age. The author proposes to separate the didactyle form (^foiind at 

 Hordwcll) from Hyopotamus^ and to found thereon the new genus 

 Diplopus. The carpal, tarsal, metacarpal, and metatarsal bones of the 

 fossil and recent Ungulates are considered at length ; and the author 

 believes that these parts of the skeleton offer the clearest indication of 

 the derivation of all Ungulata from a common stock, and of the manner 

 of their divergence. New species, Diplopus Aymardi. L. C. M. 



Krefft, G. On the further discovery of Remains of a Great Extinct 

 Wingless Bird in Australia. Geol. Mag. dec. 2, vol. i. p. 46. 



The bones were found in alluvium, on the Black Lead, Gulgang, 

 imbedded in brown dust at a depth of IGO feet from the surface. 

 They consisted chiefly of fragments of vertebrae, and indicated a bird 

 rather more strongly built than the Australian Emu, but not larger. In 

 the matrix containing the remains of Diprotodon and Thylacoleo at 

 "Wellington, New S. Wales, Mr. Krefft obtained the fractured crown of a 

 human molar, which may perhaps lead to the conclusion that man was 

 contemporary with these extinct Marsupials. Some new Diprotodon- 

 remains from Gomrie Creek, Darling Downs, indicate that the inflected 

 angle of the jaw resembles that of the Phalangers, and was not as 

 deep as that of the Wombats. 11. E., Jun. 



Lankester, E. R. Magister Schmidt on the shields of Pteraspis and 



Scaphaspis. Geol. Mag. dec. 2, vol. i. p. 288, 

 A reply to letters in the Geol. Mag. for 1873. The generic distinct- 

 ness of Scaphaspis is affirmed. 



Lejeufe, — . Molaire d'elephant trouvee a Audingues. [Elephant's 

 molar found at Audingues.] Ann. Soc. Geol. Nord, 1870-1874, 

 p. 17. 



Note of occurrence. 



Leidy, Prof. [Correction of statements by Prof. Cope.] Proc. Ac. 

 Nat. Sci. Philadel. 3 ser. vol. iv. pp. 74, 75. 



. Notice of Remains of Titanotherium. Proc. Ac. Nat: Sci. 



Philadel. 3 ser. vol. iv. pp. 165, 166. 

 Suspects that Mecacerops coloradensis, BrontotJierium, Symhorodon, 

 and Miohasileus are all referable to Titanotherium. 



Remarks on Fossils presented. Proc. Ac. Nat. Sci. Philadel. 



3 ser. vol. iv. pp. 223, 224. 

 Titanotherium and StyJemys from Tertiary of Nebraska &c. 



. Notice of donation of Eossils &c. from Wyoming. Proc. 



Ac. Nat. Sci. PhHadel. 3 ser. vol. iv. pp. 267, 268. 

 THonyx uintaensis is described, and other chelonian remains noted. 



Remarks on Fossils from Wyoming. Proc. Ac. Nat. Sci. 



Philadel. 3 ser. vol. iv. p. 277. 

 New species: — Palceosyops junior. Uintacyon edacc, U. vora.v, 

 Chamceleo pristinus. 



