LABI DOS AURUS COPE 



3*7 



side and has suffered a lateral compression. In specimen No. 178 

 (Fig. 6) the scapulae lie almost perfectly in position with the 

 clavicular girdle, or at least that of the left side. The blade may 

 have been pressed outwardly a little, but the angle between it and 

 the horizontal coracoids is nearly rectangular. As a whole, the 

 scapula is rather broad and short, as in Limnoscelis , a little narrower 

 in the larger specimen. The sutures separating the coracoids and 

 the scapula have been corroborated in several specimens. 



Fig. 6. — Labidosaurus. 

 natural size. 



No. 178. Pectoral girdle, from below. One-half 



Forelegs. — -The humeri of the different specimens vary appre- 

 ciably in shape, but I do not know the value of the differences. 

 They have a greatly expanded distal end, as would be called for 

 by the large and stout hand. The radius and ulna are shown con- 

 nected in three specimens. They are somewhat more slender than 

 the posterior epipodials, and are much shorter than the humerus. 



The carpus was correctly figured by me in my earliest paper; 

 unfortunately some of the bones were incorrectly identified: it is 

 the fifth and . not the first digit which was missing. There are 

 definitely four phalanges in the third finger, and there can be little, 

 if any, doubt that the formula was the primitive one of 2, 3, 4, 5, 3. 

 The fifth carpale I have not recognized, but it doubtless was ossified. 



