298 



It was included by Cope in bis list of Juditb River vertebrates. Barnum 

 Brown found wbat appears to be tbe same species in tbe Hell Creek beds. 



Gompsemys victa Leidy was described from the beds of Long Lake. 

 Its sculpture is characteristic, resembling small, closely placed, pustules, 

 that cover all parts of the shell, and appearing in no other turtles. It is 

 fragmentary, but very common in the Lance Creek beds. Barnum Brown 

 has collected it in the Hell Creek deposits. Cope included it in his list 

 of Judith River vertebrates. He also found it in Colorado, in deposits 

 that belong to either the Arapahoe or the Denver. I am able to say that 

 the same genus is represented by an undescribed species in the Fort Unicn. 



Aspideretes fovea tus (Leidy) was described from the Judith River 

 basin. Leidy had other specimens from Long Lake, N. Dakota. There 

 are many fragments of the species in a collection made in the Judith Basin 

 for Cope by Charles Sternberg. A nearly complete carapace was found in 

 the Belly River beds by Lambe. Fragments indistinguishable from the 

 type were secured by Barnum Brown in the Hell Creek region. The cara- 

 pace is ornamented by a characteristic pitting. 



Aspideretes beecheri Hay has for its type a specimen in. Yale Uni- 

 versity which lacks little more than the head and a part of the neck. Mr. 

 Hatcher collected in the Judith River beds two quite complete carapaces 

 which I have examined, without being able to distinguish them from the 

 type of A. beecheri. 



Adocus lineolatus Cope is a turtle that is not well known, but 

 fragments of what appear to be the same species are not uncommon. The 

 sculpturing is peculiar. The type was found in Colorado, in probably the 

 Arapahoe formation. Cope included it among the vertebrates of the Judith 

 basin, and Lambe reported it from Belly River deposits in Alberta. Bar- 

 num Brown found in the Hell Creek beds what seems to be the same 

 species. 



The genus Basilemys is represented by turtles of large size and an ex- 

 traordinary form of sculpture. The type B. variolosa (Cope) has as its 

 type a large part of the plastron and considerable parts of the carapace. 

 This type was found in the Judith River basin. Members of the Canadian 

 Geological Survey found good specimens of the species in the Belly River 

 beds in British America. A second species of the genus has been dis- 

 covered in beds of the Lance Creek epoch, in Custer County. Montana. 

 The type is a complete shell. Had only fragments been found that did not 



