404 



PALEONTOLOGY OF OHIO. 



the fifth is next, and reaches the basal third of the antepenult phalanx 

 of the fourth ; the third is very little shorter ; the first is not quite so 

 long as the first two of the third. The bones of the hind limb are not 

 readily distinguished. They are evidently much longer and larger than 

 the anterior. No part of a foot is preserved. 



Sauropleura Newberryu, Cope. 



The type specimen of this species exhibits a portion of the back of 

 the skull, and a considerable part of the course of the body, with abdom- 

 inal scuta and fore limbs. No vertebrae can be definitely discovered, nor 

 are ribs visible. The cranial fragment is the upper surface of the epiotic 

 and adjacent elements, and a broad band of the posterior parts of these 

 is seen to be smooth, and is preceded by a slightly roughened surface. 

 The abdominal scuta are rhombic or diamond- shaped, and are thin and 

 light, not massive, as in the C. scutellatus, and are sometimes marked with 

 a median longitudinal keel ; one extremity is quite prolonged. The fore 

 limb is large, especially the humerus, which is much dilated distally, 

 and has a strong crest on the outer side from near the proximal end. 

 The ulna and radius are much shorter, and more dilated proximally 

 than distally; they are well separated. No phalanges are preserved. 



Length of humerus, .035 m. ; proximal width of do., .008; distal width 

 of do., .014; length of ulna, .019; proximal width of do., .008. 



A second specimen displays similar abdominal scutella. The posterior 

 part of the skull is exhibited in profile. The mandible is deep behind 

 and sculptured with longitudinal grooves, which, when interrupted, 

 become pits. The teeth are straight, acute, and grooved at the base. . It 

 is, of course, not absolutely certain that this specimen represents the 

 species C. Newherryi, but it is evidently nearly allied to it. 



A third specimen consists of a cranium whose bones remain on oppo- 

 site halves of a block, so that their external surface is not visible. It 

 must, however, be smooth or but little sculptured, otherwise some im- 

 press would be visible through the bones. These are thin and light, and 

 display their outlines more clearly than usual. The four protruberant 

 angles mark the posterior border of the skull, the external or quadrate 

 being the most prominent, and separated by a deep notch from the me- 

 dian pair^ which are separated by a concavity only. The quadrate is 

 covered by an oval bone, probably squamosal ; the bones which project 

 into the median angles are externally epiotic and internally exoccipital. 

 The quadrato-jugal arch is well marked, forming, with the maxillaries, 

 the straight boundaries of a wedge-shaped head. The muzzle is lost, but 



