428 EXTINCT MAMMALIA OF NORTH AMERICA. 



1847, 47. In part of Carus, etc. : Resultate geol. anat. u. zool. Untersuchungcn ueber Hy- 



drarchos, 1847, 5. 

 Ilydrarclms v. Jlydrarehos, in part of Koch : as above; ■Jaliib. f. Min. 1847, 717. Do. of Cams, 



etc. : as above. Miillcr : Arcbiv. f Anat. 1847, XIV, 363. 

 Basilosaums cetoides, Gibbes : Jour. Ac. Nat. Sc. 1847, I, 15, PI. I, Figs. 1 — 4, 8. Geiuitz : Result. 



geol. etc. Hydrarcbos, 1847, 1. Rcicbenbach : Ibid. 13. 

 Zeiiglodon mam-ospondylus, Miillcr : Monatsb. d. Akad. Wissens. Berlin, 1847, 103 ; Archiv f. 



Anat. 1847, XIV, 388 ; Ueber d. Zeuglodonten v. Nordamerika, 1849, PI. I, Fig. 1 in part; 



II ? ; V, Figs. 2—5 ? ; VI ? ; VII ? ; VIII, Figs. 1, 2, 4—8 ; IX, X, XI ? ; XII, Figs. 1—10 ; 



XIII, Figs. 3, 4?; XIV— XVII ; XIX, Fig. 6 ; XX, series I ; XXII; XXIII, Figs. 3—5. 



In part of Koch : Naturw. Abh. v. Haidinger, 1851, IV, 53. Pictet: Pal6ont. 1853, I, 378. 



Bronn : Leth. Geog. 1853-6, 769. 

 Phocodon s. Squalodon, in part of Agassiz: Am. Jour. Sc. 1847, IV, 421. 



Hydrarchus macrospondylus, in part of Koch : Naturw. Abh. v. Haidinger, 1851, IV, 60, PL VII. 

 Zeuglodon iraehyspondyhis, Koch : Naturw. Abh. v. Haidinger, 1851, IV, 57. 

 Zeuglodon Bydrarchus, s. Sydrarchos, in part of Koch : Ibidem, PI. VII. 



Kemains of the great Basilosanrus have been found in Alabama, Louisiana, Missis- 

 sippi, and Arkansas. Eocene. 



DORUDON. 

 Dorudou serratns. 



Gibbes : Proc. Ac. Nat. Sc. 1845, II, 254, PI. I. 



Dorudon, Gibbes : Am. Jour. Sc. 1845, XLIX, 216 ; Proc. Ac. Nat. Sc. 1848, 57. Agassiz : Proc. 



Ac. Nat. Sc. 1848, 4. 

 Basilosaurm serraius, Gibbes : Jour. Ac. Nat. Sc. 1847, I, 15, PI. Ill, Figs. 1-3? PI. IV. 

 Zygodoii, Koch: Jahrb. Min. 1845, 676 in part. 

 Zeuglodon, Owen : Proc. Ac. Nat. Sc. 1846 ; III, 15. Meyer : Jabrb. f. Min. 1847, 669. Tuomey : 



Rep. Geol. South Carolina, 1848, 156, 208. 

 Bear, Owen : Jour. Ac. Nat. Sc. 1847, I, 10. 

 Hydrarchus Harlani, in part of Koch : Kurze Bescbreib. d. H. Harlani, Dresden, 1847 ; Jabrb. f. 



Min. 1847, 47. Carus : Resultate, etc. Hydrarcbos. 

 Basilosaurus cetoides, in part of Gibbes ; Jour. Ac. Nat. Sc. 1847, I, 5, PI. II, Figs. 1-8 ; III, Figs. 



4-6 ; Proc. Am. Assoc. 1849, II, 193. 

 Basilosaurus Kochii, Reichenbach : in Carus' Resultate geol. etc. Hydrarcbos, 1847, 13. 

 Zeuglodon hracliyspondylus, Miiller : Monatsb. d. Akad. Wissens. Berlin, 1847, 103 ; Archiv f. 



Anatomie, 1847, XIV, 388 ; Ueber d. Zeuglodonten v. Nordamerika, 1849, Pis. I, Fig. 1, in 



part, Figs. 2, 3 ; III-V, Fig. 1 ; VIII, Figs. 3, 9, 10; XII, Fig. 11 ? XIII, Figs. 1, 2, 6, 7 ; 



XVIII ; XIX, Figs. 1-5 ; XX, series II and III ; XXI ; XXIII, Fig. 4 ; XXVI ; XXVII, 



Figs. 1, 2, 6. Bronn : Leth. Geog. 1853-6, III, 770. 

 Zeuglodon pygmceus f m part of Miiller : Ueber d. Zeuglodonten v. Nordamerika, 1849, page 29, 



PI. XIX, Figs. 1-5. 

 Zegulodon Hydrarchus, Carus : Nov. Act. Acad. Nat. Cur. 1850, XXII, 369, PI. XXXIX A, Figs. 



1-3 ; XXXIX B. In part of Kocb : Naturw. Abb. v. Haidinger, 1851, IV, 57, PI. ^^L 

 Pontogeneus j)7-jscus, Leidy : Proc. Ac. Nat. Sc. 1852, 52. 

 Boryodon serraius, Cope : Proc. Ac. Nat. Sc. 1867, 155. 

 Delphinoid, Cope : Proc. Ac. Nut. Sc, 1868, 186 ; 1869, 6. 



