Vol. 32, pp. 149-160 September 30, 1919 



PROCEEDINGS 



OF THE 



BIOLOGICAL SOCIETY OF WASHINGTON 



A REVIEW OF REICHENBACH'S GENERA SIPTORNIS 



AND CRANIOLEUCA, WITH DESCRIPTIONS OF 



NEW ALLIED GENERA AND A SUBGENUS. 



BY CHARLES B. CORY. 



The species included in the Genus Siptornis Reichenbach as 

 recognized by Sclater* and Sharpef and later by Brabourne and 

 Chubb| apparently represent five genera and at least one sub- 

 genus, the distinguishing characters of which may be briefly 

 described as follows : 



A. Tail feathers rounded at ends or abruptly pointed (not attenuated 

 terminally and sharply pointed). 



a. Size small; tail graduated and much shorter than wing (about %); 

 hallux (without claw) longer than outer toe (without claw); wing 

 about 4 times length of tarsus. Siptornis Reichenbach. 



(Type Siptornis flammulata Reichenbach) — not 

 Sittasomus flammulatus Lesson § and not Siptornis flammulata Jardine 

 (Synallaxis striaticollis Lafresnaye.) 



b. Size variable; tail evenly graduated with tail feathers either blunt, 



rounded or abruptly pointed (not attenuated terminally and not 

 with most of the feathers sharply pointed) ; tail varying from slightly 

 shorter than wing (albiceps) to much longer than wing (sordida, etc.) ; 

 wing from about 3J^ times length of tarsus (curtata, etc.) to about 3 

 times length of tarsus (humilis, modesta, etc.), or decidedly more than 

 3 times length of tarsus (erythrops, subcristata, etc.) ; hallux (without 

 claw) longer than outer toe (without claw) (albiceps, patagonica, etc.), 

 or about equal to outer toes (vulpina, etc.), or shorter (as in most 



* Cat. Bds. Brit. Mus., XV, 1890, p. 58. 



t Hand-list Bds., iii, 1901, p. 58. 



X Birds South Am., I, 1912, p. 332. 



§ The type of Sittasomus flammulatus Lesson is a young specimen of Glyphorhynchus 

 cuneatus cuneatus (Lichtenstein) (c/. Pucheran, Rev. Mag. Zool., 1853, p. 489; Menegaux 

 and Hellmayr, M6m. Soc. d'Hist. Nat. d'Autun, XIX, 1906, p. 97). 



30— Pboc. Biol. Soc. Wash., Vol. 32, 1919. (149) 



