1903.] Hay^ North Atnencan Cretaceous Fishes. 49 



Saurocephalus phlebotomus Cope. 



Saurocephalus phlebotomus Cope (E. D.), Proc. Amer. Philos. Soc. XI, 



1870, p. 530; U. S. Geol. Surv. Wyoming, etc. 1871, p. 416; 



Proc. Amer. Philos. Soc. XII, 1S71, p. 343. — Hay (O. P.), 



Bibliog. and Cat. Foss. Vert. N. A. 1902, p. 386. 

 Daptinus phlebotomus Cope (E. D.), Proc. Acad. Nat. Sci. Phila. 1873, 



p. 339; Bull. U. S. Geol. and Geog. Surv. I, No. 2, 1874, p. 41; 



Vert. Cret. Form. West, 1875, pp. 213, 275, pi. xlvii, figs. 3, 4, 6; 



pi. xlix, figs. 1-4. — -Newton (E. T.), Quart. Jour. Geol. Soc. 



XXIV, 1878, p. 440. — ZiTTEL (K. A.), Handbuch Palseont. Ill, 



1890, p. 264. 

 Saurodon phlebotomus Cope (E. D.), Bull. U. S. Geol. Surv. Ill, 1877, 



p. 588. — Stewart (A.), Kansas Univ. Quart. VII, A. 1898, p. 



186; Univ. Geol. Surv. Kansas, VI, 1900, p. 312, pi. Ivii, figs. 



4, 5. — LooMis (F. B.), Palseontogr. XLVI, 1900, p. 248, pi. 



xxiv, figs. 1-5. — Woodward (A. S.), Cat. Foss. Fishes, IV, 1901, 



p. 112. 

 Daptinus phlebotonum Crook (A. J.), Paljeontogr. XXXIX, 1892, p. 



123. 



The type of this species is in the American Museum and 

 has the number igo6. There are present all of the left max- 

 illa, except the distal end; the alveolar border of the right 

 maxilla; both palatine malleoli; and considerable parts of 

 both dentaries, including the symphysis and surface for articu- 

 lation of the predentary. All the parts are more or less frag- 

 mentary; but it is believed that they furnish a correct idea 

 of the tooth lines, both of the maxillae and the dentaries. The 

 conclusion is reached that there were not more than 40 teeth 

 in each dentary and about 30 in each 

 maxilla. 



The specimen which Stewart has de- 

 scribed and figured as Saurodon phleboto- 

 mits (Univ. Geol. Surv. of Kansas, VI, 

 p. 312, pi. Ivii, figs. 4, 5) is quite certainly 



1 r-\ , 1 .1 1 1,1 • Fig. 38. Saurocefthalus 



such. On the other hand, the specimens phieiwtomus Cofe. No. 1907. 



- -11 1 r- 1 1 T ■ /-r. 1 X A. Premaxilla, inner view. 



described and figured by Loomis (ralag- 

 ontogr., XLVI, p. 248, pi. xxiv, figs. 1-5) are probably not 

 of this species. In these there are 47 teeth in the dentary. 

 Likewise, the premaxilla does not resemble that of one of 



[yanuary, igoj.] 4 



