2 Watson, The larger Coal Measure Amphibia. 



All the specimens are crushed quite flat but shew the 

 sutures with admirable clearness. All the material is 

 excellently prepared, almost all the bones being free from 

 matrix. 



Embleton and Atthey have described the best skull 

 of " Loxonima'' in a paper illustrated with very excellent 

 figures. Their description of the upper surface of the skull 

 is very accurate and detailed, except that they state that 

 the alveolar border of the left maxilla is imperfect, when 

 actually the whole bone has been disarticulated and is 

 missing. Their description of the quadrate and palate are 

 not satisfactory because they were misled by presumed 

 resemblances to the crocodile. Reference to their figures 

 will give all necessary information about the top of the 

 skull. The palate is redescribed below. 



The Basi-occipital is a small bone of conical shape, the 

 base being formed by the single large condyle, which is 

 concave, and exactly resembles the end of a vertebral 

 centrum, which it no doubt is. 



The greater part of the rest of the bone is covered 

 with roughened surfaces for other bones, the back of the 

 parasphenoid below and the exoccipitals above ; it is prob- 

 able that it did not enter into the foramen magnum, its 

 upper surface being completely covered by the two 

 exoccipitals. 



The Basisphenoid, Parasphenoid, and Ethmoid are 

 fused together, and only their lower surface is well seen. 

 The back of the basisphenoid is recessed for the anterior 

 end of the basi-occipital, and what is presumably the 

 posterior end of the parasphenoid projects backwards, 

 covering the lower surface of the latter bone. The 

 sides of the basisphenoid slope upwards, passing im- 

 perceptibly into the opisthotic and pro-otic. On each 

 side of the bone in the region of the pituitary fossa is a 



