272 HERODIONES. 



Suborder VI. ODONTOPTERYGES. 



(Fossil.) 



[Cy. Lydekker, Cat. Fossil Birds, p. 57 (1891).] 



Genus ODONTOPTERYX. 



Owen, Journ. Geol. Soc. xxix. p. 511 (1873). 



Odontopter3rx toliapica. 



Odontopteryx toliapica, Owen, ut supra ; Lydekker, t. c. p. 57. 



The Toothed Cormorant (extinct). 



Hall. Lower Eocene, Isle of Sheppey. 

 1287 a. Cast of head. Purchased. 



Order II. HERODIONES *. 



ICf. Seebohm, Classif. B. p. 27.] 



A. Palate desmognathous. 



B. Basipterygoid processes absent. 



C. Sj)inal bare tract reaching far up the neck. 



D. Mandible not ])roduced and recurved behind its articulation 



with the quadrate. 



Suborder I. ARDEM f. 

 \Cf. Sharpe, Review, p. 75.] 



A. Palate desmognathous. 



B. Basipterygoid processes absent. 



C. Mandible not produced and recurved behind its articulation 



with the quadrate. 



D. Interclavicle projecting conspicuously within the angle of 



the fuKcula. 



E. Spinal bare tract reaching far up the neck : no lateral bare 



tract. 



F. A large jwwder-down patch on each side of the rump. 



* " Pelargifornies," Sharpe, Review, p. 7o. Cf. Reichenow, J. f, 0. 1877, 

 p. 13 ; Ridgway, Bull. Survey Terr. iv. p. 219. 



t Cf. Shufeldt, Journ. Comp. Med. 1889, art. 15, pp. 1-2G ; id. t. c. art. 18, 

 pp. 1-31 ; id. Pr. U.S. Nat. Mus. x. p. 38-5. Cf. Seebohm, Classif. B. p. 27 ; 

 Lydekker, Cat. Fossil B. Brit. Mus. p. 60 (1891). 



