722 
Anisonclius, Periptyclius. Properiptychus. 
apiculaius, Cope, Tert. Vert., pl. 26e; fEocaeu. infer. 
Trans. Am. Ph. Soc., 1888, p. 352. Nov.-Mexico. 
‘^gracilis. Cope (Zetodon), Tert. Vert., » 
p.424, pl. 25f. 
Subfam. 2. tPteriptychinae. 
871. fPeriptychus, Cope, 1881. 
Catatidaeus, p., Cope, 1881. 
4472.tcoarctatus, Cope, Tert. Vert., 1884, fEocaen. infer, 
pl. 29d (textum ad fig. 7, 8); Trans. Am. Nov.-Mexico. 
PMl. Soc., 1888, p. 354; Osb. et Earle, 
Bull. Am. Mus., 1895, p. 54; Matthew, 
BuU. Am. Mus., 1897, p. 296. 
Jtrabensis, Cope, Trans. Am. PMl. Soc., » 
1888, p. 354 (nec Osb. et Earle, 1895.) 
4473. f rhabdodon, Cope, Amer. Natur., 1881, fEocaen. infer, 
p. 830 ; Proc. Amer. PMl. Soc., 1881, p. 487 ; Nov.-Mexico. 
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. f carinidens, Cope, Amer. Natur., 1881, fEocaen. infer, 
p. 337 ; Proc. Am. Phil. Soc., 1881, p. 484; Nov.-Mexico. 
1883, p. 561; Tert. Vert., p. 403, pl. 25a, 
23d, 24g; Matthew, Bull. Am. Mus., 1897, 
p. 297. 
hrahends, Osb. et Earle (nec Cope), » 
Bull. Am. Mus., 1895, p. 55. 
872. f Properiptychus, Amegh., 1897. 
Periptgcims, p., Am., 1893. 
4475. f argentinus, Amegh., Rev. Scient., 1893, 
l®'^ Sem., p. 17; Am.Nat., 1893, p. 447; 
Bol. Inst. OeogT. Arg., 1897, sep., p. 36, 
fig. 24. 
f Cretae, super. 
America merid. 
Ai'gentina. 
