66 A REVISION OF THE COTYLOSAURIA OF NORTH AMERICA 



Table V — Continued. 



Family Captorhiniitt — Continued. 

 Lchidosaurut — Continued. 



6. Basioccipital and basisphenoid not enlarged. 



7. Supraoccipital plates vertical at the back of the skull. 



8. Skull with a reticulate sculpture. 



9. Scapula, coracoid, and procoracoid united. 



10. Cleithrum absent. 



11. Ischium and pubis broad and plate-like. 



Family Seymourida. 

 Seytnouria. 



1. The skull a little broader than long; blunt anteriorly. 



2. Orbits large, more in the posterior half of the skull than in the middle, looking laterally. 



3. Not determinable. 



4. Not determinable. 



5. Not determinable. • 



6. Basioccipital and basisphenoid not large. 



7. Supraoccipital plates nearly vertical but occupying a considerable space and are on the upper 



surface of the skull. 



8. Skull with definite, reticulate sculpture. 



9. Not determinable. 



10. Cleithrum absent. 



Table VI. — Showing the Characters of the Genus Pantylus. 

 Pantylus. 



1. Skull flat on top with the sides steeply inclined; the posterior surface nearly vertical. 



2. Orbits of medium size, near the middle of the skull. 



3. Teeth, blunt, swollen cones. 



+. Maxillary teeth nearly uniform in size, except the second or third, which is larger. 



5. Teeth in more than one row in the lower jaw and probably in the upper also. 



6. Not determinable. 



7. Supraoccipital plate vertical. 



8. Skull with close reticulate sculpture. 



9. 10, II. Not determinable. 



NOTE. 



Since the manuscript of this article has been placed in proof two articles have appeared from 

 the pen of Prof. S. W. Williston: 



1. Restoration of Seymouria baylorensis Broili, an American Cotylosaur. Journal of 



Geology, vol. xix, 191 1, pp. 232-237. 



2. A new family of reptiles from the Permian of New Mexico. American Journal of Science, 



vol. XXXI, 191 1, pp. 378-398. 



In the first of these the author presents a restoration of Seymouria and discusses its habits. 

 The family name Seymouridce is proposed without specific characterization. 



In the second a new family, Ltmnoscelida, based on the genus and species Limnoscelis paludis, 

 is proposed from material in the collection of the Peabody Museum of Yale University. The new 

 family belongs in the suborder Paretasaurta, as defined in this paper. Its characters as compared 

 with the other families of the suborder are as follows (see table in) : 



D. Limnosctlidte. 



1. Skull large as that of Z)tai?f««. Narrowed in front, broad in the temporal region. Not 



rugose. 



2. Basioccipital and basisphenoid large. The latter well formed and separated from the 



basioccipital by a well-marked suture. Basipterygoid processes large. 



3. Incisor teeth large; the median pair the largest. The cheek teeth conical, largest in tht 



anterior part of the jaws. Probably only one row in each jaw. 



