1883.] *^o3 [Cope. 



3Ieasuremenis of No. 1. M. 



Diameters head of M. IV | '^^^teroposterior . . 0120 



t- transverse (at middle) 0070 



Widtli of patella near middle 0190 



Diameters of tibia .07 M. from astragalus | anteroposterior 0185 



'^ I transverse 0130 



Anteroposterior width of astragalar face 0200 



Total length of astragalus 0310 



r length on groove 0210 



Diameters of the trochlea < width above 0160 



' elevation externally 0130 



Greatest width of astragalus below 0225 



Length anterior to internal crest of trochlea 0100 



Diameters head of metatarsal III I ^'^t^^^P'^^t^™^ ^^^^ 



t. transverse (in front) 0110 



Diameters head of metatarsal IV { anteroposterior 0140 



>. transverse 0105 



f anteroposterior 0120 



( without tuberosity < ^ with lateral 



^. , -, ,, -vx ' transverse < facet 0080 



Diameters head M. V < f ■^^ ^ ^ t^mn 



j C without do.. .0040 



I transverse over all 0170 



Length Mt. V 0460 



Widtli do. at epicondyles 0120 



Width do. at condyle above 0065 



Width of M. Ill or IV at epicondyles 0120 



Width of proximal end of phalange 012 



Length of smaller phalange (1st series) 0230 



Proximal diameter do. I ^^^■^^^'^^ 0070 



I transverse 0110 



Ungual phalange, vertical diameter of cotylus 0090 



The specimen which has been partially described in the preceding pages 

 as No. 2, has many pieces which are identical with those preserved in spec- 

 imen No. 1. Among these may be mentioned the glenoid cavities of the 

 squamosal bone. These display, besides the large postglenoid process, a 

 well developed preglenoid ridge, as in Arctocyonidce, Oxycemdm and Meso- 

 nyclddcB. A large distal caudal vertebra of elongate form, indicates a 

 long tail. An articular extremity of a flat bone is intermediate in form be- 

 tween the proximal end of the marsupial bone of Didelphys and that of 

 Sarcophilus. Its principal and transverse articular surface is transversely 

 convex, as in the latter (8. ursinus), but the lesser articular face is sepa- 

 rated from it by an even shorter concave interspace than in the opossum. 

 It has almost exactly the form of that of the latter animal. It is a short, 

 flat cone, with two faces presenting on the same side, the one part of the 

 concavity mentioned, the other flat and presenting away from it. This 



