CAPRIMULGID^. — HIBUNDINIDJE. 
S39 
Nyemue, Humboldt. Bill smaU, as in Caprimnlgus : 
the upper mandible with a projecting tooth. Feet 
broad, flat. , 
N. graiidis. Vieil. 
Capkimulgus, Lin. Bill remarkably smaU and weak ; 
the sides indexed, and sometimes gaping, larsus 
short All the toes directed forwards ; the inner am 
outer toes equal: the middle claw pectinated. 
Cavrimulgus. Gape strongly bristled. Tail lengthened, 
rounded. Lateral toes equal. 
C. Europffius. Selby, i. pi. 42*. 
Psalurus,S,w. Gape strongly bristled. Tail excessive- 
ly long, and very deeply forked. Brazil. 
P macroplerus. PI. Col. 157. bifurcatus. Sw. Sp. Nov. 
Chordeiles, Sw. Gape perfectly smooth, ^ings very 
long, equal to the tail, which is slightly forked. North 
America. r , o 
c Araericanus. N. Zool. ii. W.lson, 40. f. 1, 2. 
ScoRTOums Sw. General structure of 
but the outer lateral toe is shorter than the inner. 
Scortornis. Rictus strongly bristled. Tail lengthened, 
irraduated, or rounded. 
^ S. cUmacterus. West. Af. ii. Vieil. Oal. 122. 
Macrodipteryx, Sw. Rictus strongly bristled. Win^ 
loTg, equal to the tail, and with a lengthened remi- 
form feather in each. Tail even. Mnw. 
M. Africanus. Sw. West. Af. ii. Shaw. N. Miss. pi. 265. 
Pronhe,-a, Sw. Rictus almost smooth Wings very 
long, equal to the tail, which is short and even. 
Tarsus very naked. America. 
P. diurnis. FI* Col. 182. 
Family HIRUNDINID.®. Swallows. 
Plumage compact, glossy. Bill very small and triaii- 
SlrsELUS, Aristotle. Margins of the bill inflected and 
slightly gaping. Gonys ascending. Wings excessive 
ly long, curved. Feet small, weak. Tarsus very shon. 
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