554 Choicheph., Nescioth., Proadianth., Adianth., Pscudadianth., Saghath. 
920. f ? Choichephilum, Amegh., 1899. 
Ameghino, Sinops. Geol.-Pal. Secundo Censo Axg., Suppi., 1899, p. 5. 
5664. f diastematum, Amegh., 1. c., 1899, p. 5. fEocaen. Patagonia. 
921. fPNeseiotherium, Roth, 1898. 
Roth, Revista Mus. La Piata, 1898, p. 181. 
5665. f indiculus, Roth, 1. c., 1898, p. 181. fEocaen. Patagonia. 
Eamilia III. f Adianthidae. 
922. f Proadianthus, Amegh., 1897. 
Ameghino, Bol. Inst. Geogr. Arg., 1897, p. 455. 
5666. f excavatus, Amegh. — (4518). f Cretae. Patagonia. 
5667. f pungidens, Amegh.. Bol. Acad. Cord., f Cretae. Patagonia. 
1901, p. 372. 
5668. f gibbus, Amegh., 1. c., 1901, p. 372. f Cretae. Patagonia. 
923. f Adiantlius, Amegh., 1891. 
Ameghino, Revista Argent., 1891, p. 134. 
5669. f buccatus, Amegh. — (4519). fEocaen. Patagonia. 
5670. f patagonicus, Amegh., Anal. Mus. B.-Aires, fEocaen. infer. 
1904, p. 92, f. 98, 100. Patagonia. 
Pseudadiantlras, Amegh., 1901. 
Ameghino, Bol. Acad. Cord., 1901, p. 372. 
5671. f secans. Amegh., 1. c., 1901, p. 372. f Cretae. Patagonia. 
5672. f imperfectus, Amegh., 1. c., 1901, p. 373. f Cretae. Patagonia. 
Eamilia IV. Procaviidae. 
(Hyr acidae, Auct. Vet.] 
925. f Saghatherium, Andrews et Beadnell, 1902. 
Andrews et Beadnell, Surv. Depart. Le Caire, 1902, p. 5. 
5673. f antiquum, Andrews et Beadn., 1. c., 1902, fEocaen. Sup. 
p. 5, pl. fig. 4; Andrews, Geol. Mag., 1903, .Egyptus, Merid. 
p. 340, f. 2. (Fayoum). 
