280 HERODIONES. 



Suborder III. SCOPl *. 

 \0f. Sharpe^ Review, p. 75.] 



A. Piilate tlesniognathous. 



B. Basipterygoid processes absent. 



C. Mandible not produced and recurved behind its articulation 



with the quadrate. 



D. No interclavicular process within the angle of the furcula. 



E. Flexor inrfovan,^ digitorum not leading to hallux. 



F. Bare tracts on the neck well defined. 

 (1. No powder-down patches. 



Geuus SCOPUS. 

 Brisson, Orn. v. p. 292 (1760). 



Scopus umbretta. 



tScopus umbretta, Gmelin, 8yst. Xat. ii. p. 618 (1788) ; Sharpe, ed. 

 Layard's B. S. Afr. p. 725 (1884) ; Holub & Pelz. Beitr. Orn. 

 Siidafr. pp. 277-286, cum fig. 



The Hammer-head. 



IJah. Africa. 

 1328. Skeleton. 0. C. 1313 a. Purchased. 



Suborder IV. CICOJSfllt 

 \_Cf. Sharpe, Eeview, p. 75.] 



A. Palate desmognathous. 



B. Basipterygoid processes absent. 



C. Mandible not produced and recurved behind its articulation 



with the quadrate. 



D. No interclavicular process within the angle of the furcula. 



E. Flexor perforans digitorum not leading to hallux. 



F. No lateral bare tracts on the neck. 



G. No powder-down patches. 



* Cf. Seebohni, Classif. B. p. 27 ; Stejneger, Stand. Nat. Hist, Birds, 

 p. 170; Beddard, P. Z. S. 1884, pp. 543-oo3. 

 t Cy". Secbohm, Classif. B. p. 27. 



