53 Mamm. 
MAMMALIA. 
e. Didelphyid^. 
f Didelphys curvidens , n. sp., H. Burmeister, An. Mus. B. Aires, iii, 
pp. 379 & 380, pi. vii, fig. 1, Tertiary, Argentina. 
■\Notocynus hermosicus , n. g. & sp., A. Merge rat, Rev. Mus. la Plata, 
ii, p. 80, Middle Tertiary, Monte Hermoso. Described as a Creodont, 
but identified by Ameghino, Rev. Arg. Hist. Nat. i, pp. 437 & 438, with 
Didelphys triforata. 
f. NoTORYCTIDiE. 
Sclater, P. L. On the New Mole-like Marsupial ( Notoryctes typhlops). 
Nature, xliv, p. 449. • 
Stirling, E. C. On Notoryctes typhlops. P. Z. S. 1891, pp. 327- 
329, fig. 
The dental formula is here given as if, cf, mf (? j";f, wif), which is 
different to the one in the following paper. 
. Description of a New Genus and Species of Marsupialia 
{Notoryctes typhlops). Tr. R. Soc. S. Austr. 1891, pp. 154-187, 
pis. ii-ix. 
Describes and figures a new mole-like Polyprotodont Marsupial from the 
deserts of Central Australia, under the above name. The dental formula 
is given as if, cf, p\ t m%. = f§. 
. Further Notes on the Habits and Anatomy of Notoryctes typhlops. 
T. c. pp. 283-291, pi. xii. 
Tegetmeier, W. B. The Mole like Marsupial {Notoryctes typhlops). 
Field, lxxviii, p. 475, figs. 
Trouessart, E. Le Notoryctes typhlops , Nouveau Type de Marsupiaux 
Fouisseurs originaire du Desert Australien. La Nature, 1891, pp. 
290-294, woodcuts. 
A fully illustrated descriptive account. [See also Ogilby, supra , 
p. 14, by whom the dental formula is given as if, cf, pf, m%, = f§."|. 
A Notcyryctes typhlops , n. g. & sp., Stirling, Tr. R. Soc. Austr. /. c. f 
Central Australia. 
11 . ■ [MULTITUBERGULATA . 
Ameghino, F. Los Plagiaulacideos Argentinos, y sus Relaciones 
Zoologicas, Geologicas, y Geographicas. Rev. Arg. Hist. Nat. i, 
pp. 38-44. 
A reprint of the memoir quoted in Zool. Rec. xxvii, Mamm. p. 50. 
In Rev. Arg. Hist. Nat. i, p. 304, the above author states that in the 
South American forms the tooth usually reckoned as the fourth lower 
premolar is really the first molar, and that the same holds good for the 
European Plagiaulacidce. 
