TINAMOU 955 
into two subfamilies, the first, 77maminzx, having four toes, and the 
second, Zinamotidine, having but three—the latter containing, so 
far as is known, but two genera, Calopezus with a single species 
and Tinamotis with two, while the former, according to Messrs. 
Sclater and Salvin (ut supra), may be separated into seven genera, 
two being Zinamus and Nothocercus, characterized by the roughness 
of their posterior tarsal scales, the others, Crypturus, Rhynchotus, 
Nothoprocta, Nothura and Taoniscus, having smooth legs. 
RuFous TinamMou (Rhynchotus rufescens). 
To the ordinary spectator Tinamous have much the look of 
Partridges, but the more attentive observer will notice that their 
elongated bill, their small head and slender neck, clothed with very 
short feathers, give them a different air. The plumage is generally 
inconspicuous: some tint of brown, ranging from rufous to slaty, 
and often more or less closely barred with a darker shade or black, 
is the usual style of coloration ; but certain species are characterized 
by a white throat or a bay breast. The wings are short and 
rounded, and in some forms the feathers of the tail, which in all 
are hidden by their coverts, are soft. In bearing and gait the birds 
shew some resemblance to their distant relatives the Ratitxy, and Mr, 
Bartlett shews (Proc. Zool. Soc. 1868, p. 115, pl. xii.) that this is 
especially seen in the newly-hatched young. He also notices the 
still stronger Ratite character, that the male takes on himself the 
duty of incubation. The eggs are very remarkable objects, curiously 
