SYSTEMATIC WORK. 
Mamm. 57 
Hippotherium rectidens , n. sp., Cope, (81) p. 360, from the Loup Fork, 
Upper Miocene of Tehnichila, State of Vera Cruz, Mexico. 
Equus caballus : Cuyer & Alix (89) and Leisering (207), text- 
book on the Horse ; Norner (277) on the auatomy and histology 
of the Horse’s hoof. E. burchelli : Langkavel (187) on the dis- 
tribution of the Zebra and allied forms. E. hemionus : SchaPF (328), 
description of a youDg foal. 
Hhinocerotidac. 
Flower (125). General account of the family. 
Rhinoceros simus and R. bicornis : Sclater (336) on the e'xternal points 
of difference between these two species. R. lasiotis : Noak (275), notes on 
the external anatomy. R. tichorhinus : Nadaillac (252) on its discovery 
at Spy, in Belgium. 
Acer ather ium minus. Filiiol (115) on the lower jaw found in the 
Quercy phosphates. 
MACRAUCHENIJD2E. 
Scalabrinitherium bravardi and rothii. Amegiiino, (18) p. 110, 
description of these forms from Tertiary deposits of the Argentine. 
Chalicothe R1 1 DjE . 
Ghalicotherium baltavarensis , n. sp., Petho (294), from the Baltavdr 
beds. 
TOXODONTIA. 
Toxodontidj). 
Toxodon expansidens } n. sp., Cope, (80) p. 20, from the Pampean 
Pliocene of the province of Bahia, Brazil. T. burmeisteri : Leidy (206), 
note on remains of this form from Nicaragua, C. A. T. virgatus , n. sp., 
Ameghino, (18) p. 91, from the Argentine Tertiaries. 
Stenotephanus, n. g., Ameghino, (18) p. 104, for type Toxodon plicidens 
of same author. 
Bibolodon lutarius y n. sp., Ameghino, (18) p. 108, from the Argentine 
Tertiaries. 
Haplodontherium limun , n. sp., Ameghino, (18) p. 102, from the 
Argentine Tertiaries. 
Neosodon. Moussaye (250), note on. 
Typotheriid^;. 
Tomodus elautus , n. g. & sp., Ameghino, (18) p. 109, from the 
Argentine Tertiaries. 
