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EXPLANATION OF THE PLATES. 



Fig. 10. (Erroneously marked 4 by the artist; see upper right hand corner of plate) connate ischiadic bones 

 from below ; 10a (4a), lateral view ; 10b (4b), distal extremity. 



Fig. 11. (Below 2 ; number omitted in plate) probably pubes, side view. 



I' I, ATE XIV, 



' I 3- 



Figs. 1 to 4. Bones of Boloilon lepturus, Cope, from Phconixville, Pennsylvania, from the private collection 

 of Charles M. Wheatlcy, A. M. One-third the natural size. 



1. Median dorsal vertebra anterior view ; la, right side of the same. 



2. Diapophysis of dorsal with tubercular and capitular surfaces, a little more posterior in position. 



Fig. 3, 4, and 5. Three dorsal vertebra) in close connexion in the matrix but not consecutive in the skeleton. 

 Fig. 3, a dorsal near the position of lig. 2 from side ; 3a, from tho anterior extremity. Fig 4, a vertebra from a 

 position posterior to 3, from the right side ; 4a, from in front. Fig. 5, centrum without processes, of a vertebra from 

 near 3. 



Fig. 0. Diapophysis with capitular and tubercular faces, of a dorsal vertebra from between 3 and 4. 



Fig. 7. The hist dorso-lumbar vertebra, with slender diapophysis and united capitular and tubercular faces ; 7a, 

 tho same from behind, showing tho lateral facets for tho sacral diapophyses, and fragments of two or three dermal 

 bones covering tho neural spine ; 7b, the same vertebra from below. 



Fig. 8. Caudal vertebra from tho right side ; 8a, tho same, posterior view. 



Fig. 0. A more posterior caudal vertebra from tho right side ; 9a, tho same from below. 



Fig. 10. A chevron bono posterior view. 



Fig. 11. A number of ribs with a fragment of a vertebra above them. 



Fig. 12.' Fragment of the pelvis ; a, the ilium ; b, tho ischium. 



Fig. 13. The left femur ; 13a, proximal extremity ; 13b, distal extremity. 



Fig. 14. Fibula, extremity broken off. 



Figs. 15—25. Belodon prisms, Cope. Montgomery Co., North Carolina. Museum Academy Natural Sciences, 

 Philadelphia ; one-third natural size. 



Fig. 15. Anglo of the mandible, showing the truncate posterior margin, and inferior suture of tho articular bono ; 

 15a, superior view of tho same showing the transverse cotylus for tho quadrate behind and margin of largo dental 

 foramen within. 



Fig. 1G. Extremity of same mandible, right side of symphysis; 10a, same inferior view; 10b, fragment of frontal 

 bono with part of orbit. 



Fig. 17. Anterior dorsal or posterior cervical of same, loft side ; 17a, same from behind. 



Fig. 18. Portions of two dorsal vertebra!, the separate neural spines, one resting obliquely on the arch of tho 

 other. 



Fig. 19. A caudal vertebra, left side ; 19a, the same, inferior view. 



Fig. 20. A dermal bono ; 80a, a profile. 



Fig. 21. (?) Ulna, proximal extremity ; 21a, end view. 



Fig. 22. Astragalus. 



Fig. 23. Cuboid bone. 



Fig. 24. Metatarsal proximal extremity. 



Fig. 25 Four marginal bones of tho right side of tho carapace of Lytoloma jeanesii from llornerstown, 

 discovered by Jno. G. Meirs ; a, the first, b, the second marginals, the hitter without distal end ; c, perhaps tho fifth, 

 nearly entire ; d, eighth or ninth, proximal extremity wanting. 



