32 



Measurements. 



MM. 

 Upper molar, plate VIII, figs. 10, 11. Type : — 



Maximum transverse diameter 10 ' 20 



" anteroposterior diameter 7 • 80 



Lower molar, plate VIII, figs. 12, 13 : — 



Maximum transverse diameter 5 • 30 



Antero-posterior diameter 8 ■ 00 



Posterior lower molar, plate VIII, figs. 14, 15. 



Antero-posterior diameter 10-50 



Upper molar of L. esulcatus (type) : — 



Maximum transverse diameter 6 00 



Antero-posterior diameter, approx . , : 6 • + 



Upper molar of L. mammifer (cotype) : — 



Maximum transverse diameter 11 ■ 50 



" antero-posterior diameter 9 • 50 



Lower posterior molar of L. mammifer (type specimen) : — 



Antero-posterior diameter, approx 1 2 • 70 



The name speciosus is proposed for this apparently undescribed species of Leptomeryx. 

 Locality : — Bone coulee, Cypress hills, collection of 1904. 



Leptomeryx semicinctds, Cope. 



Leptomeryx semicinclus, Cope, 1889. The Vertebrata of the Swift-current river, II, American 

 Naturalist, vol. XXIII, p. 154 



Leptomeryx semicinctus, Cope, 1891. The species from the Oligocene or Lower Miocene 

 beds of the Cypress hills ; Geol. Survey of Canada, Contr. to Can. Palseont., vol. Ill 

 (quarto), pt. I, p. 23, pi. XIV, figs. 8, 8a. 



Leptomeryx semicinctus, Matthew, 1902. The skull of Hypisodus, the smallest of the 

 Artiodactyla, with a revision of the Hypertragulidse, Bulletin Amer. Mus. Nat. Hist., 

 vol. XVI, article XXIII, p. 314. 



This species was founded by Cope on two upper molars, and part of a third, from the 

 Cypress hills. Additional upper molars were obtained in 1904, by the writer, in Bone coulee. 

 This species is for the present referred to Leptomeryx; without the full dentition its 

 generic affinities cannot be satisfactorily determined. 



Hypertragulus transversus, Cope. 



Hypertragulus transversus, Cope, 1889. The Vertebrata of the Swift-current river, II, 

 American Naturalist, vol. XXIII, p. 154. 



Hypertragulus transversus, Cope, 1891. The species from the Oligocene or Lower Miocene 

 beds of the Cypress hills; Geol. Surrey of Canada, Contr. to Can. Palseont., vol. Ill 

 (quarto), pt. I, p. 22, pi. XIV, figs. 4, 4a. 



Hypertragulus transversus, Matthew, 1902. The skull of Hypisodus, the smallest of the 

 Artiodactyla, with a revision of the Hypertragulidae, Bulletin Amer. Mus. Nat. Hist., 

 vol. XVI. article XXIII, p. 316. 



