362 FOSSIL TURTLES OF NORTH AMERICA. 



attachment ot the ligament. Neat the outer end of this hinge nearly the whole surface is rough. 

 The lower half of the anterior face projects in front of the upper half and is mostly smooth 

 and was covered with the horny epidermis. 



( >n the lower surface of the hone is seen the abdomino-femoral sulcus. The abdominal 

 scutes were, in tore-and-att extent, 33 mm. laterally and 55 mm. at the midline. On this surface 

 are some taint grooves produced by the growth of the scutes. Two of these grooves near the 

 anterior border are especially conspicuous. This species is dedicated to Prof. Frederick W. 

 Putnam, the distinguisht archeologist and ethnologist. 



In a considerable collection of fossil turtle bones sent to him from Vanderbilt University, 

 Nashville, Tennessee, the writer finds 2 fragments of the carapace of a large box-tortoise. 

 This collection was obtained in Hillsboro County, Florida, by Dr. W. H. Tarman and belongs 

 to the university named above. The fragments probably belong to T. putnami. 



One portion (fig. 461) consists of the areas occupied by the second, third, and a part of 

 the fourth left marginal scutes and a portion of the contiguous first costal. This fragment, 

 compared with the carapace here referred to Cope's T . marnochi, indicates a carapace about 

 320 mm. long. The bones are solidly co-ossified and the sutures obliterated, showing that the 

 individual was aged. Where the suture between the first and second peripherals should occur 

 the bone is 14 mm. thick. The free edge is acute. In the area covered by the fourth marginal 

 the border is revolute. The second and the third marginals measure each 33 mm. along the 

 free border and are about 20 mm. high. 



In the same lot of bones is a fragment (fig. 462) furnishing the suprapygal, the pvgal, and 

 the right and left eleventh peripherals. The bones are co-ossified, but the sutures may be 

 traced. The individual probably had a length of about 250 mm. The free edge is acute and 

 somewhat recurved. The eleventh peripheral is 10 mm. thick. The fifth vertebral scute is 

 50 mm. wide, while that of the carapace of T. marnochi is 40 mm. wide. The two twelfth 

 marginals taken together measure 40 mm.; those of T. marnochi, 37 mm.; the height of the 

 scutes in the two species is the same, 13 mm. The height of the eleventh marginal is 28 mm.; 

 that of T. marnochi, only 32 mm. It is evident that the Florida specimen does not belong to 

 T . marnochi . 



Terrapene marnochi (Cope). 

 Plate 58, figs. 1, 2. 



Cistudo marnochii, Cope, Proc. Amer. Pliilos. Soc, xvn, 1878, p. 229; Amer. Naturalist, XXIII, 1889, 



p. 161, Feb. 

 Cistudo marnochii, Cope, Amer. Naturalist, xix, 1885, p. 1208. 

 Terrapene marnochii, Hay, Bibliog. and Cat. Foss. Vert. N. A., 1902, p. 449. 



This species was founded on the posterior lobe of an individual which was discovered by 

 Gabriel W. Marnock, in the Equus beds of Atascosa County, Texas. What has become of the 

 specimen is not known. It does not appear to be in the Cope collection of fossil reptiles in the 

 American Museum of Natural History at New York. The specimen was not figured by Cope. 

 The following is his description of the type: 



Represented by the posterior lobe of the plastron of an individual of twice the bulk of the exist- 

 ing North American Cistudos. It is broadly rounded posteriorly, and there is an emargination at the 

 femoro-anal dermal suture. The anterior suture is straight, as is also the lateral, which measures 

 more than a third the length of the entire lobe. On the upper side of the angle included by these 

 sutures is the fossa for fixed attachment with the carapace. The beveled face of the fore edge of the 

 lobe is quite wide. The dermal sutures are well marked. The anal scuta are large, their median 

 length being half that of the lobe. The common femoral suture is only half as long as the ventral. 

 The inferior surface is nearly flat in every direction, and the surface is smooth. The posterior 

 border of the specimen is broken away. 



This species was obtained from the same formation as the last, by Gabriel W. Marnock, to 

 whom 1 dedicate it. 



In the American Museum there is a large carapace (plate 58, figs. 1, 2) ot a species ot this 

 genus which was found in the Cope collection of fossil reptiles, but which appears never to 

 have been mentioned by Professor Cope. Accompanying it is a label stating that it was 

 found in the "Elephant beds," on San Diego Creek. Texas, and had been sent by Mr. William 



