der Säugethiere während des Jahres 1882. 415 



a. Astragalus articulating only with navicular. 

 Fibula with interlocking articulation with astragalus: Hyracoidea. 

 Fibula with lateral contact only with astragalus: Taxeopoda. 



aa. Astragalus uniting with both navicular and cuboid. 

 Lunar uniting with unciform; fibula only in contact with astragalus ; 



Ämhlypoda. 



II. Os magnum supporting os scaphoideum ; lunar supported in 

 part by unciform. Astragalus uniting with both cuboid and 

 navicular. 

 Astragalus truncate distally; median digit longest: Perissodactyla. 

 Astragalus ginglymoid distally; two median digits equal : Ärtio- 



dactyla. American Naturalist Vol. 16 No. 6 p. 522—523. 



In einer anderen Bearbeitung dieses Themas bildet 

 derselbe vier Ordnungen. 



I. Taxeopoda, mit den Unterordnungen Hyracoidea und Con- 

 dylarthra und vielleicht Toxodontia (Character: Scaphoides suppor- 

 ted by trapezoides and not by magnum, which Supports lunar. Cu- 

 boid articulating proximally with calcaneum only). II. Pröboscidea 

 (Scaphoides supported by trapezoides and not by magnum, which 

 Supports lunar. Cuboid extended inwards and articulating with the 

 distal face of the navicular. III. AmUypoda mit den Unterordnungen 

 Pantodonta und Dinocerata (Scaphoides supported by trapezoides 

 and not by magnum, which with unciform, supports the lunar. Cu- 

 boid extended inwards and articulating with astragalus). IV. Di- 

 plarthra, Unterord. Perissodactyla und Ärtiodactyla (Scaphoides 

 supported by magnum, which with the unciform also supports the 

 lunar. Cuboid extended inwards so as to articulate with the astra- 

 galus). Die Phylogenie der Ordnung ist folgendermaassen dar- 

 gestellt : 



Taxeopoda. ' 



^ ^ , 



Condylarthra. Platyarthra (hypothetisch). 



Hyracoidea. Pröboscidea. Amblypoda. 



Hyodonta (hyp.) Pantodonta. 



Diplarthra. Dinocerata. 



Perissodactyla. Ärtiodactyla. 

 Proceed. Amer. Philosoph. Soc. Philadelphia Vol. 20 No. 112 p. 438 

 —447. 



Derselbe beschreibt zwei neue, zu den Ämhlypoda 

 oder Perissodactyla gehörende Gattungen und Arten, Haplo- 

 conus lineatus und Pantolamhda hathmodon. American Natur. 

 Vol. 16 No. 5 p. 417—419. 



