722 



Anisonchus, Periptychus, Properiptychus. 



apiculatus, Cope, Tert. Vert., pl. 25 e; 

 Trans. Am. Ph. Soc, 1888, p. 352. 



? gracilis, Cope (Zetodon), Tert. Vert., 

 p.424, pl. 25f. 



fEocaen. infer. 

 Nov.-Mexico. 



Subfam. 2. fPteriptychinae. 



871. fPeriptychus, Cope, 1881. 

 Catathlaeus, p., Cope, 1881. 



4472. T coarctatus, Cope, Tert. Vert., 1884, 

 pl. 29 d (textuni ad fig. 7, 8); Trans. Am. 

 Phil. Soc, 1888, p. 354; Osb. et Earle, 

 Bull. Am. Mus., 1895, p. 54; Matthew, 

 Bull. Am. Mus., 1897, p. 296. 



brabensis, Cope, Trans. Am. Phil. Soc, 

 1888, p. 354 (nec Osb. et Earle, 1895.) 



4473.frhabdodon, Cope, Amer. Natur., 1881, 

 p.830; Proc.Amer.Phil.Soc, 1881, p.487; 

 1883, p. 564; Tert. Vert., p. 391, pl. 23f 

 et g et 57; Am. Nat., 1884, p. 801, fig. 1, 

 2, 6—9; Osb. et Earle, Bull. Am. Mus., 

 1895, p. 53; Matthew. Bull. Am. Mus., 

 1897, p. 296. 



4474. fcarinidens, Cope, Amer. Natur.. 1881, 

 p. 337 ; Proc Am. Phil. Soc, 1881. p. 484; 

 1883, p. 561; Tert. Vert, p. 403. pl. 25a, 

 23 d, 24g; Matthew, Bull. Am. Mus., 1897, 

 p. 297. ^ 



brabensis, Osb. et Earle (nec Cope). 

 Bull. Am. Mus., 1895, p. 55. 



fEocaen. infer. 

 Nov.-Mexico. 



iEocaen. infer. 



Nov.-Mexico. 



j-Eocaen. infer. 

 Nov.-Mexico. 



872. I Properiptychus, Amegh, 1897. 

 Periptychus, p, Am, 1893. 



4475. fargentinus. Amegh, Rev. Scient, 1893, 

 l er Sem.. p. 17; Am. Nat, 1893, p. 447; 

 Bol. Inst. Geogr. Arg, 1897, sep.. p. 36, 

 fio\ 24. 



fCretac super. 



America merid, 



Aro-entina. 



