300 FOSSIL TURTLES OF NORTH AMERICA. 
Professor Cope in 1899 (Jour. Phila. Acad., x1, p. 196, plate xix, fig. 1) described and 
figured a box-tortoise which he called Toxaspis anguillulatus. Of this tortoise he had at com- 
mand five fragmentary carapaces on beds of matrix, three parts of plastrons, and two moulds 
of carapaces. All these had been obtained in the cave near Port Kennedy. 
The type of Cope’s Toxas prs anguillulatus is number 155 of the collection of the Philadel- 
phia Academy. This is figured as cited in the synonymy at the head of this article; but the 
figure is poorly printed and does not well show the structure. A diagram of the specimen 
(fig. 469) is here presented; but even in the specimen some 
sutures are obscure and on the left side the hinder peripherals 
Neural. Length. Width. 
| a have been somewhat displaced. 
Fig. 469: Professor Cope did not compare his species with the one 
3 16 17 which he had described in 1869. The present writer, having 
es - examined Cope’s types of both species, concludes that they are 
6 9 15 identical. Cope stated that his type carapace, No. 155, is of 
7 13 12 larger size than that of any of the existing species of what he 
eee called the Terrapenide. However, a comparison with a shell 
; 16 a of T. carolina shows that the carapace was not more than 140 
2 13 16 mm. long, perhaps not more than 130 mm.; and occasional 
3 15 a individuals of 7. carolina attain that size, while some of TJ. 
major become still larger. Cope believed that his 7. anguil- 
lulatus had a more deprest shell than any of the living species, but this may be doubted. 
Another of Cope’s specimens is numbered 154. This (fg. 470) furnishes the three anterior 
neurals. Their measurements are given in the table above. 
468. 470). 469. 
Fics. 468-470.—T errapene eurypygia. Portions of shells. 
468. Plastron. 
469. Rear of carapace of type of Toxasprs anguillulatus. 
470a. Front of carapace. No. 154 Phila. Acad. 
470b. Portion of hypoplastra and xiphiplastra. No. 154 Phila. Acad. 
From the measurements of No. 155 (hg. 469), given in the table above, it will be 
seen that all the neurals, except the first and the last, have the width considerably greater than 
the length. They appear to be somewhat broader than those of T. carolina. 
The eighth neural was not developt. The seventh is not as long as the width of the seventh 
costals; and, as a result of these conditions, the seventh costals meet on the midline behind the 
seventh neural and the eighth costals join by their whole proximal width. In some specimens 
of T. carolina there is a long and narrow eighth neural. 
