Ridged structure of vanes of feathers, [3]
Ridgway, on Ardea occidentalis, [93] n.;
on Ciconiidae, [95] n.;
on Dissura, [96] n.;
on Humming-birds, [432];
see Baird
-bird, [545]
Riporre, [238]
Rissa, [301];
Ridged structure of vanes of feathers, [3]
Ridgway, on Ardea occidentalis, [93] n.;
on Ciconiidae, [95] n.;
on Dissura, [96] n.;
on Humming-birds, [432];
see Baird
-bird, [545]
Riporre, [238]
Rissa, [301];