M. R. Thorpe — Neiv Fossil Carnivora. 483 



Matthew, No. 12865, A. M. N. H., in (1) larger size and 

 (2) different proportions. The paratypes of the latter 

 species, Nos. 12866 and 12867, are figured, but not the 

 type. In comparison with the paratypes, 0. darhyi, sp. 

 nov., differs in (1) somewhat larger size, (2) possession 

 of P% (3) greater crowding of the premolars, (4) much 

 larger size of Pi, (5) smaller size and different shape of 

 M-, (6) less curvature of the inferior tooth row, (7) 

 greater degree of recurving of Ci, (8) straighter inferior 

 outline of the ramus, and (9) greater depth of ramus 

 below the tooth row. 



These paratypes Matthew designated in his table of 

 measurements as a new variety, robust lor, although I 

 think that additional material would elevate them to the 

 rank of a new species, more advanced in development 

 than any of the others. Another paratype of the same 

 species. No. 12868, may well be a male of 0. lepidus, as it 

 agrees with the type except in being of larger size. 



Eeferences. 



De Blainville, M. H.-M. D. 1839-1864. Osteographie. Paris. (Subursus, 

 pi. U.) 



Cope, E. D. 1884. The Vertebrata of the Tertiary formations of the 

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Goldman, E. A. 1920. Mammals of Panama. Smithson. Misc. Colls., 69, 

 No. 5, 149, pi. 31, figs. 1, la. 



Kaup, J. 1832. Vier neue Arten urweltlicher Eaubthiere, etc. Archiv fiir 

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Matthew, W. D. 1907. A Lower Miocene fauna from South Dakota. Bull. 

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Merriam, J. C. 1903. The Pliocene and Quaternary Canidge. Univ. Cali- 

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Merriam, J. C, and Sinclair, W. J. 1907. Tertiary faunas of the John 

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 Wiss., 7, pt. 2, 389-392, pl. 8, figs. 1, 2. Munich. 



Trouessart,,E. L. 1897. Catalogus mammalium, 291. Berlin. 



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 bers of the Canidse, the Viverridae, and Procyonidse, Bull. Amer. Mus. 

 Nat. Hist., vol. 12, 109-138. 



Zittel, K. A. von. 1891-1893. Palseozoologie. Handb. d. Pal., 4, 634, fig. 

 ool. 



