170 Annals of the South African Museum. 



cavity. The coracoid is of the normal Auoinodout type. The clavicles 

 are slightly curved and are 77 nun. long. 



The humerus is 85 mm. long, has a breadth at the head of 47 mm., 

 a width at the distal end of 49 mm., while the shaft has a minimum 

 width of 10 mm. 



The radius is 54 mm. long, 18 mm. broad proximally, and 26 mm. 

 broad distallv. The bone is twisted so that the longer diameter of 



o 



the distal end is not continuous with that of the distal end of the ulna, 

 but is beut at an angle to it passing inwards and backwards. 



The ulna is 57 mm. long, i. e. slightly longer in proportion to the 

 humerus than in Lystrosaurus. As in that genus there is no bony 

 olecranon process ; but on ihe uluar side of the facet for the humerus 

 the top of the bone is broad and flattened, possibly for the support of 

 cartilage acting as a cap. The maximum width at the proximal end 

 is 19 mm., at the distal end 17 mm., and the minimum width across 

 the shaft is 9 mm . The lower arm is carried at right angles to the 

 upper ann. 



Part of the right fore foot is preserved. The carpals are not 

 ossified, but metacarpals I-III are there and some of the phalanges of 

 the digits, which are twisted inwards. The preserved portion agrees 

 closely with the hand of Lystrosaurus described by Watson (Geol. 

 Mag., 1913, p. 256). The third metacarpal is larger than the second. 

 The terminal phalanx of the thumb is a very broad, thin bone. The 

 following are the measurements of the bones seen on the dorsal surface, 



in millimetres : 



Proximal 

 breadth. 



Metacarpal I . . 5 - 5 . 1O5 



Phalanx I 911 



II . . 12 12 



Metacarpal II . . 11 '5 . 14 



Phalanx I 7 12 



II . 9 11 



Metacarpal III . 14'5 . 14'5 



Phalanx II . 6 11 



II . 7-5 . 11 



The ilium has a large preacetabular portion as in Lystrosaurus, but 

 is somewhat higher than in that genus. Its upper border carries two 

 notches, corresponding to the posterior two of the three figured by 

 Watson. The total length of the bone is 88 mm., the greatest height 

 63 mm., and the width at the acetabular end 30 mm. Compared with 

 Lystrosaurus the upper border of the bone ascends more rapidly from 

 the postacetabular process to the highest point. 



