PRODREMOTHERIUM——PR(EUTATUS. 569 
Prodremotherium Frirnor, 1877. Ungulata, Artiodactyla, Tragulide. 
Ann. Sci. Géol., Paris, VIII, art. 1, pp. 228-236, pl. 11 figs. 258-268, 1877. 
Type: Prodremotherium elongatum Filhol, from the Phosphorites of Quercy, 
France. 
Extinct. 
Prodremotherium: 750, before; --Dremotheriwn. 
Proechidna Gervais, 1877. Monotremata, Tachyglossidze. 
Ostéog. Monotrémes Viv. et Foss., p. 43, Nov. 30, 1877.* 
New name for Acanthoglossus Gervais, 1877, which is preoccupied by Acanthoglossa 
Kraatz, 1859, a genus of Coleoptera. ‘‘ La ressemblance qui existe entre ce 
mot [Acanthoglossus] et celui d’ Acanthoglossa . . . ne me parait pas devoir 
faire obstacle à son emploi. Il serait d'ailleurs facile de le remplacer si cette 
maniére de voir ne devait pas prévaloir; le nom de Proechidna ou tout autre 
pourrait alors lui étre substitué." (GERVAIS. ) 
Name antedated by Zaglossus Gill, May 5, 1877. 
Proechidna: 70, before, -- Echidna. 
Proéchimys ALLEN, 1899. Glires, Octodontidze. 
Bull. Am. Mus. Nat. Hist., N. Y., XII, 264, Dec. 26, 1899. 
New name for Echimys Geoffroy, 1838 (not Cuvier, 1809). Type: Echimys trinitatis 
Allen & Chapman, from Princestown, Trinidad. 
Proéchimys: 2p0, before; + Echimys. 
Proedium AMEGHINO, 1895. Ungulata, Typotheria, Eutrachytheriide. 
Bol. Inst. Geog. Argentino, XV, cuad. 11-12, pp. 623-624, 1895 (sep. pp. 23-24). 
Proedrium Amecutno, La Argentina al través de las Ultimas Epocas Geológicas, 
17 footnote, 1897; Bol. Inst. Geog. Argentino, XVIII, 529-530, Oct. 6, 1897. 
Type: Proedium solitarium Ameghino, from the Pyrotherium beds of Patagonia. 
Extinct. Based on a mandibular symphysis without teeth. 
Proedium: 70, before, in front; de:ófa, deformity—in allusion to the condition 
of the type specimen. 
Preeuphractus AMEGHINO, 1886. Edentata, Dasypodid:e. 
Bol. Acad. Nac. Cien. Córdoba, IX, 208-216, 1886. 
Preuphractus AwEGnINO, Act. Acad. Nac. Cien., Cordoba, VI, 868-871, pl. rxrx, 
figs. 12-14, 1889. 
Type: Preuphractus limpidus Ameghino, from the older Tertiary of Paraná, 
Argentina. 
Extinct. Based on two scutes of the carapace. 
Preuphractus: 700, before; + Euphractus. 
Preutatus Amecuino, 1891. Kdentata, Dasypodidee. 
Nuevos Restos Mamif. Fos. Patagonia Austral, 41, Aug., 1891;+ Revista Argen- 
tina Hist. Nat., I, entr. 5a, 327, Oct. 1, 1891. 
Preeutatus LyDEKKER, Zool. Record for 1891, XXVIII, Mamm., 53, 1892. 
Type: Hutatus «mophorum Ameghino, from the lower Eocene of southern 
Patagonia. 
Extinct. 
Preutatus: 700, before; -- Eutatus. 
- 

* For date, see footnote on p. 41, where it is stated that this brochure, forming 
‘chapitre deuxiéme,' is the first to appear, while the first and third ‘chapters’ will 
be published during 1878. The work seems never to have been completed. 
T ‘‘Premiére quinzaine d'aoüt . . . Synon. Thoracotheriwm Merc. Deuxiéme 
quinzaine d'aoüt."  (Awranrxo, Enum. Syn. Mamm. Foss. Patagonie, 173, 1894. ) 
