428 CLASS XVI. 



Rhynchotus Spix, Gkay. Bill of tlie length of head, or a little 

 longer than head, curved, slender, with mandibles equal. Nostrils 

 basal. Wings with third and fourth quills longest of all. Tarsi 

 covered anteriorly Avith a single row of scutes, somewhat short. 

 Hallux short, elevated, or resting on the point of claw. 



Sp. Rhynchotus rvfescens, Tinamus rufescens Temm. PL col. 412, Guer. 

 Iconogr., Ois. PI. 46, fig. 3. 



Euclromia IsiD. GeOFFR., Tinomotis ViGORS, GraY^ Bill 

 short; nostrils placed near the base. Toes short, with claws thick, 

 sharp. Hallux none. 



a) With tarsi covered anteriorly ivith a single roio of scutes. 



Sp. Eudroniia elcgans D'Orbigny and IsiD. Geoffr., Guer. Magas. de Zool. 

 1832, Ols. PI, I. 



b) Witli tarsi reticidate anteriorly, with scales large, unequal. 



Sp. Eudromia Pentlaiidii nob., Tinainotis Pentlandii, Proceed. Zool. Soc, 

 1836, p. 79. 



Family XVI. Tetraonhim. Bill short, broad at the base, com- 

 pressed at the sides, mostly thick. Nostrils often partly covered 

 by plumules or by a vaulted scale, basal. Head plumed, except 

 the region above the eyes often denuded, warty. Tarsi covered 

 anteriorly with scutes, sometimes shaggy with plumules; anterior 

 toes mostly joined at the base by membrane; hallux elevated or 

 resting on the point, more rarely none. Wings short, mostly 

 rounded, with third, fourth, or fifth quill longest of all. 



Hemipodius Reinw., Temm., Ortygis Illig., Turnix Bonnat., 

 Gray, Tridactylus Lac. Bill moderate, compressed, bent, with 

 upper mandible produced beyond the tip of lower ; lower mandible 

 with angle somewhat prominent, ascending towards the tip. 

 Nostrils placed in a groove of bill, marginal, partly covered by 

 membrane. Tarsi covered before and behind by a single series 

 of transverse scutes, with a narrow, lateral squamiferous furrow 



1 There is no satisfactory reason for preferring the name compounded by Vigors, 

 contrary to the rules of Linn.eus, to that of Geoff. St.-Hilaire; for Eudromius of 

 BoiE, proposed as a generic name for a subdivision of Charadrius {Charadrius mori- 

 nellus), has not been adoj^ted. 



