560 AVKS. 



Genus 20. — YUNX. — Liunceus. 



Generic Character. — Bill sliort, straight, conical, depreissed, the ridge 

 rounded, somewhat slender at the tip ; nostrils basal, lateral, and partly 

 closed by a membrane ; the two anterior toes united at their base ; poste- 

 rior ones divided ; tongue long, extensile, and vermiform, provided at its 

 tip with a horny substance ; tail with ten flexible soft feathers ; wings of 

 medium length ; the first quill a little shorter than the second, which is tlio 

 longest in the wing. 



Yunx torqtiilla.—Th& Wryneck. Plate xxxvii. fig. 3. Described, vol. iii. 

 p. 175. 



ORDER VI.— ANISODACTYLI. 



Bill more or less arcuated, subulated and slender, frequently straight, feet 

 witli three toes before and one behind, the exterior one always adhering at 

 its base to the middle toe ; the hallux usually long ; all the toes furnished 

 with long and bent claws. 



Genus l.—OXYRHYHCHVS.— Temminck. 



Generic Character. — Bill short, straight, triangular at its base, thin anJ 

 subulate at the point ; nostrils basal, lateral, naked, and half covered by a 

 membrane ; tarsus short, being about the length of the middle toe ; three toes 

 before, the lateral ones equal, the external toe attached at the base, the in- 

 ternal one free ; fourth and fifth quills the longest. 



Oxyrhynchusjlammiceps. — The Bright Billed Oxyrhynchus. Plate xxxvii*. 

 fig. 6. Brownish.black above ; wings olive-green ; yellowish. white beneath, 

 with dusky-brown spots ; head surmounted by a crimson incumbent crest, 

 its sides having three transverse yellowish lines. Seven inches long. Inha- 

 bits BraziL 



■Genus 2.—SYTT A..—Linnaus. 



Generic Character. — Bill straight, cylindrical, slightly compressed, and 

 subulated ; upper mandible a little lunger than the lower one, and acumi- 

 nated ; tongue sliort, and armed with a horny point ; basal, somewhat 

 rounded, and partly hid by reflected nuchal bristles ; feet with three toes 

 before and one behind, the outer toe joined at its base to the central one ; 

 hallux same length as the middle toe, with a long hooked claw ; tail with 

 twelve feathers ; wings short ; the first quill very short, the third and fourth 

 Deing the longest. 



Sitta EuroptEO— The European Nuthatch. Plate xxxvii fig. 4. Described, 

 vol. iil p. 185. 



Genvs S—OmUOt^YX.—Temmitick. 



Generic Character. — Bill very short, compressed, and nearly straight, 

 with a slight notch at the point ; nostrils open, situated in the middle of 

 the bilV, surrounded by bristles ; tarsus longer than the middle toe ; claws 

 very long, with lateral furrows ; wings very short ; tail long and pointed- 



Orthonyx mactilatus. — The Spotted Orthonyx. Plate xxx. fig. 6. Dusky- 



