43G EXTINCT MAMMALIA OP NORTH AMERICA. 



ANOPLONASSA. 



Anoplonassa forcipata. 



Cope: Vr. Am. Phil. Soc. 1869, 188, 189, PI. V, Fig. 5. 



Indicated by a jaw fragment, from near Savannah, Georgia. 



BELUGA. 



Beluga vermontana. 



DelphiiMs T<'/7(i,oh/«w».s, Thompson : Amer. Jour. Sci. 1850, IX, 257, Figs. 1 — 13. Leidy: Anc. 



Fauna Neb. 1853, 10. Pictet : Trait<5 de Pal<Sont. 1853, I, 382. 

 Beluga Vermontana, Thompson : Hist, of Vermont, 1853, Append. 15, Figs. 1 — 13. Briggs and 



Foster: Geol. Surv. of Canada, 1863, 919. Cope: Proc. Ac. Nat. So. 1867, 144. 



Indicated by the greater part of a skeleton found at Charlotte, Chittenden Co., 

 Vermont. According to Mr. Thompson, probably also by some remains found at 

 Montreal, Canada, Post-tertiary. 



CATODON. 

 Catodon vetus. 



Uctacea resembling Phi/seter macroceplwlus, Gibbes : Jour. Ac. Nat. Sc. 1847, I, 11. 



Physeter, Gibbes : Pr. Am. Assoc. 1849, II, 193, 194. 



Physeter antlquus* Leidy : Proc. Ac, Nat. Sc. 1853, 378 ; Holmes' Post-plioc. Fos. S. Carol. 1860, 



117, PL XXIV, Figs. 8, 9. Emmons: Rep. N. Carol. Geol. Surv. 1858, 212, Fig. 34; Man. 



Geol. 1860, 213, Fig. 181. Cope : Proc. Ac. Nat. Sc. 1867, 144 ; 1859, 162. 



Two teeth resembling those of the Sperm "Whale are described on page 117, and 

 represented in figures 8, 9, plate XXIV, of Holmes' Post-pliocene Fossils of South 

 Carolina; one from the post-pliocene deposit of Ashley River, the other, recent in 

 appearance, obtained from an excavation in Charleston. A somewhat larger and 

 straighter tooth is described and figured on page 213 of Emmons' North Carolina 

 Geological Survey, from Craven Co., North Carolina, and is attributed to the eocene 

 formation. 



The collection of the Academy contains four teeth and a vertebra, together with 

 some fragments of bones of a Sperm Whale from the miocene formation of Virginia. 

 The teeth are small, and the vertebra is devoid of epiphyses, indicating a young 

 animal. The teeth are much decomposed, friable, and broken. The best preserved 

 in its perfect condition has been about four and a half inches long, and is fourteen 

 and a half lines in diameter antero-posteriorly at the middle. 



ORYCTEROCETUS. 



Orycterocetus qnadratidens. 



Leidy : Proc. Ac. Nat. Sc. 1853, 378. Emmons : N. Car. Geol. Surv. 1858, 210, Fig. 32. 

 Ori/cterocefiis cormttidetis, in part of Leidy : Proc. Ac. Nat. Sc. 1856, 255. Cope : lb. 1867, 144. 



The remains originally referred to Orijcterocetus by the author consist of two teeth 

 * This uame was previously employed by Gervais, Comptes Kendas, 1849, xxviii, 646. 



