AND AVES OF NORTH AMERICA. 



251 



EXPLANATION OF WOOD CUTS. 



4> 



Fig. 1, p. IS. — Cranium of Dendrerpeton obtusum, Cope, natural size; from Prof. Newberry's collection. 



Fig. 2, p. 18. — Oestocephalus remex, Cope, oaudal vertebrae, natural size; from Prof. Newberry's coll. 



Fig. 8, p. 81 .— Hothosaurus probably andriani, Mtinst., from above; rig. 4, same from below; much reduced; 



from the, German Trias. 

 Fig. 5, p. 82. — Mecistops intermedins, Graves, one-eighth natural size, profile; flg. (I, same, from above; Qu _ quadrate 



bone. From Mus. Academy Nat. Sciences; supposed to be from the Orinoco. 

 Fig. 7, p. 41. — Femur of Oimoliasaurus magnus, from New Jersey, about one-fourth natural size; flg. 8, same, distal 



extremity. Fig. 9, posterior dorsal vertebra of Oimoliasaurus magnus, same individual as the last. 

 Fig. 10. — Posterior dorsal Elasmosaurus platyurus, a little less than one-fourth the natural size. 

 Fig. 1 1. — Elasmosaurus platyurus, scapular arch inferior elements, restored; the portions not preserved, shaded. One- 

 sixth natural size. 

 Fig. 12. — Pelvic arch, inferior elements of the same, one-sixth natural size; the shaded portions restored. 

 Fig. 18. — The ilium of the same, lateral view; flg. 14, distal extremity of the same. 

 Fig. 15. — Cervical and anterior dorsal vertebrae of Cimoliasaurus magnus, (Mus. Academy Nat. Sciences) compared 



with, 

 Fig. Hi, Posterior cervical and anterior dorsal vertebrae of Klasmosaurus platyurus ; the transverse processes of the 



former incurved by pressure. 

 Fig. 16 A, p. G4. — Section near apex of crown of tooth of Thecachampsa antiqua, Leidy; IS, do. of Thecachampsa sicaria, 



Cope. 

 Fig. 18, p. 7;i. — Outlines of (lie cups of the fourth dorsal vertebrae of Holops contains and //. obscurus; the external 



unshaded representing Hie former, the internal shaded, Hie latter. 

 Figs. 1)1-2(1, p. 77. — Inferior and lateral views of a muzzle of Holops basilruncatus, Owen, (See Appendix to ReptiUa) 



one-third natural size. 

 Figs. 21-4, p. 8d.—Perosuohusfusous, Cope, living sp. from Darien; flg. 21 profile, 22 superior face of the cranium; 



the acute processes near the left canine tooth are an error of the artist; 28 the fore, and 24 the hind foot. 

 Figs. 25-6, p. 85. — Lateral and superior views of the cranium of Oxteolaaiius l/rtraspes, Cope, recent species from 



West Africa. 

 Fig. 27, p. 92. — Proximal portion of scapula of JIadrosaurus foulkei, from New Jersey; upper right hand figure, the 



extremity with glenoid cavity; lower figure, interior view. 

 Fig. 28, p. 93. — The unidentified bone, from Monmouth Co., New Jersey. 

 Fig. 29, p. 95. — Restoration of pelvis of Hadrosaurus foulkei, dotted portions wanting; a, posterior or acetabular view 



of proximal end of pubis. One-tenth natural size; I), inner view of ischium of Ulepsysaurus pennsyloanicus, Lea, 



one-third natural size; from the types in Mus. Philada. Aoad. Nat. Sci. 

 Fig. 30, p. 103. — Caudal vertebrae of Laelaps aquilunguis, one-eighth natural size; shaded portions wanting in original; 



neural spines not completed. 

 Figs. 81 to 34, pages 118-119. — Laelaps maeropus, hind limb; 31, proximal extremity of tibia,; 32, proximal portion of 



metatarsal; 32a, proximal extremity of same, natural size; 33, distal portion of external metatarsus, postero- 

 external view; 31, antero-external view of same. 

 Figs. 35-7, p. 122. — OrnitJwtarsus immanis, Cope, extremities of tibia and fibula; 35 from anterior, 30 from posterior, 



37 from extremital view: in all of these the suture defining the astragalo-calcaneum is too distinct; 30a, fractured 



extremity, showing medullary oavity with cancelli. 

 Fig. 38, p. 133. — Restoration of carapace of OsUopygis platylomus: the last costal suture on each side, and the last, 



small vertebral bone sutures should be erased, as they are not visible in the mature specimen. See Appendix to 



Reptilia. 'the anterior vertebral bone also, is not known. One-sixth natural size. 



Fig. 39, p. 134. — OsUopygis platylomus plastron, restored; shaded portions not found. 



Fig. 39, p. 139. — Propleura sopita, carapace restored, one-sixth natural size. First vertebral not known. 



Fig. 40, p. 154. — Proximal extremity of humerus of Puppigerus grandaevus, 



