AVES. 539 



lapping lower. Nostrils lateral, remote from the base, partly closed 

 by a horny scale, covered by plumes of forehead. Wings with 

 fourth and fifth quills (or even sixth) subequal, longest of all. 

 Tail long, mostly graduated, sometimes rounded. Toes free, padded 

 beneath. 



Sp. Podargus cinereus Cuv., R. Ani. PL 4, fig. i, LESS.OmzVA. PL 33, fig. i, 

 GUEB. Iconogr., Ois. PI. 17, fig. 4, &c. Species from New Holland and 

 New Guinea. Small species are found at the Sunda Islands, in which 

 the sixth quill-feather is as long or even longer than the fifth. They form 

 the genus Batrachostomus GOULD. Sp. Podargus comutus TEMM. PL col. 

 159- 



Steatornis HUMBOLDT. Bill moderate, curved, dentate before 

 the tip, with tip produced, uncinate. Nostrils lateral, placed nearly 

 in the middle of bill, oblique. Wings long, with third and fourth 

 quills longest of all. Tail long, graduated, broad. Tarsi strong, 

 short, hirsute. Toes free, with claws compressed, curved. 



Sp. Steatornis caripensis HUMBOLDT, Observ. de Zool. et d'Anat. comp. n. pp. 

 139 144, Tab. 44 (fig. of head and of foot), L'HEBMIIHEB in Nouv. Ann. 

 du Mus. d'Hist. not. m. 1834, pp. 321 331, PL 15 (fig. of bird col.), 

 J. MUELLEB Anat. Bemerkungen, Arch.f. Anat. Physiol. &c. 1842, s. i 

 1 1, Taf. i ; the GuacJiaro, a large, red- brown, nocturnal bird, living in 

 caverns of Cumana, which is said to feed exclusively on fruits; its oily 

 fat is used by the natives in dressing their food. The double vocal organ 

 is noticed above, p. 344. 



(Genus of uncertain position.) Eurylaimus HORSF. Bill shorter 

 than head or moderate, depressed, broader at the base than fore- 

 head, with culmen rounded, tip curved ; margin of upper mandible 

 waved. Bristles or decomposed feathers at the sides of upper 

 mandible. Feet moderate ; tarsi scutellate anteriorly. Outer toes 

 concrete as far as the second phalanx. Wings moderate, with 

 third and fourth quills longest of all. Tail with twelve feathers, 

 graduated. 



a) Nostrils longitudinal, lateral, median, placed in a groove. Cymbi- 

 rhynchus VIG., Erolla LESS. Sp. Eurylaimus nasutus TEMM., Todus 

 macrorhynchus GM., TEMM. PI. col. 154, GUEBIN Iconogr.j Ois. PL 16, 

 fig. 3, Sumatra, Borneo. 



b) Nostrils basal, rounded. Eurylaimus HOBSF., GBAT. (Corydon 

 LESS., Platyrhynchus VIEILL., add Parisomus SWAINS, and SerUophus 

 ejusd.) Sp. Eurylaimus corydon TEMM., Eurylaimus sumatranus VIG., 

 PI. col. 297, LESS. Ornith. PL 50, fig. i ; Eurylaimus Horsfieldi TEMM., 

 Eurylaimus javanicus HOBSF., PI. col. 130, 131, &c. 



