950 



MR. D. M. S. WATSOX ON A 



text-figs. 162 & 164. All the sutui-es drawn with solid Hnes in 

 these figures can be clearly seen in specimen II. 



The intei-esting features are the great development of the 



Text-fiff. 162. 



^atrachiderpeton lineatiim. Dorsal aspect of the restored siull and clavicular 

 apparatus. Xli- Skull mainlj' founded on specimen II., from which all the 

 sutures are taken, and the pectoral girdle restored from the bones of specimen III., 

 which is a smaller individual, enlarged to correspond in size with the skull. 



Reference letters: — Cl., Clavicle; Cm., Cleithrum ; Fe., Frontal; I.Ci., Inter- 

 clavicle; Lac, Lachrymal; Mx., Maxilla; P.Mx., Premaxilla; P.O., Post- 

 orbital; P.Pae., Postparietal ; Pae., Parietal; Po.Fe., Postfrontal ; Pe.Fe., 

 Prefrontal : Sq., Squamosal ; Tab., Tabulare. 



