REPTILIA : SEYMOURIA 49 



specimens preserved in the museum at Munich have remained 

 until recently the only known ones of the genus. Two years ago 

 I found on East Coffee Creek, not far from the locality whence 

 the types came, several vertebrae and some fragmentary limb 

 bones, which I referred provisionally to some unknown form 

 allied to Labidosaurus, but could in nowise associate with Sey- 

 mour ia. Later a series of vertebrae and numerous limb bones 

 were found on West Coffee Creek, in the immediate vicinity of 

 the locality whence came the original types, imbedded in clay 

 and intimately associated with an incomplete skeleton of Trimer- 

 orhachis. Among this material were parts of two skeletons of 

 almost identical size, and very much smaller than the type specimen. 

 Because of their immaturity, for they are doubtless juvenile 

 specimens of S. baylorensis, they show certain embryonic characters, 

 such as the separation of the arches and the unusually large size 

 of the intercentra, not seen in the adult specimens. With no parts 

 in common with the type specimens, as described by Broili, I 

 described these specimens as pertaining to a new genus and species, 

 Desmospondylus anomalus (Plate XXIX), though suspecting that 

 they might belong to some previously described genus known 

 only from fragmentary remains. More recently a few bones of 

 this species have been detected among the skeletons of Cacops, 

 Varanosaurus, and Casea of the remarkable Cacops bone-bed near 

 Indian Creek, two or three miles south of West Coffee Creek. And 

 yet other imperfect specimens belonging to the same genus and 

 species have been recognized among the material obtained in earlier 

 years, now forming a part of the Chicago University collections. 



In May, 19 10, however, Mr. Miller was so fortunate as to 

 discover on the Wagner ranch, about a mile west of the Craddock 

 ranch, and about the same distance west of the spot where the type 

 specimens of Trematops and Trispondylus were discovered, a 

 remarkable specimen of this species which is almost without equal 

 among Permian specimens from Texas for perfection of preserva- 

 tion. The specimen was contained in a large, dark-red, hard-clay 

 nodule that had been wholly washed from its bed, and broken into 

 four pieces scattered on the hillside. The only visible part of the 

 specimen which led to its detection was a small part of the cranial 



