. Catalogue of the Birds in the British Museum. 436 GTPSELID^. tSynopsis of the Subfamilies. a. Tarsi distinctly feathered ; outer and middle toes with only three phalanges. I. CYPSELINJE, p. iS6. arsi unfeathered or with some scanty feathers ; outer and middle toes with the normal number of phalanges. a'. Tarsi quite as long as or longer than middle toes ; tail short and even or only slightly furcate; wings always reaching far heyond the end oi tail II. CHjETURINAi, p. 470. b'. Tarsi perceptibly shorter than middle toes; tail long and deeply furcate : wings not, or only [p. 511. just, reachin
. Catalogue of the Birds in the British Museum. 436 GTPSELID^. tSynopsis of the Subfamilies. a. Tarsi distinctly feathered ; outer and middle toes with only three phalanges. I. CYPSELINJE, p. iS6. arsi unfeathered or with some scanty feathers ; outer and middle toes with the normal number of phalanges. a'. Tarsi quite as long as or longer than middle toes ; tail short and even or only slightly furcate; wings always reaching far heyond the end oi tail II. CHjETURINAi, p. 470. b'. Tarsi perceptibly shorter than middle toes; tail long and deeply furcate : wings not, or only [p. 511. just, reaching to the end of tail.'. III. MACROPTERYGINjE, Subfamily 1. CYPSELIN^. Synopsis of the Genera. a. Toes all directed forward at equal intervals from each other; generally larger birds with very strong feet. a'. Toes unfeathered 1. Micropus, p. 436. b'. Toes feathered. a". Tail only emarginate, outer rectrices not sharply pointed; feathers of the breast round and fuU 2. Aebonautes, p. 459. b". Tail very deeply forked, outer rectrices very sharply pointed ; feathers of the breast loose, whole plumage soft and silky .... ;J. Panyptila, p. 401. b. Toes in pairs, the outer and middle toe di- rected to the right, the inner and hind toe to the left; generally smaller birds, with only moderately strong feet. c'. Toes unfeathered 4. Tachornis, p. 462. d.' Toes feathered 6. Claudia, p. a. Foot of Aeronautes inelMwleucus, to show the feathered toes. h. Foot of Microptcs apus, | ^^ ^^^^ ^^^ j^j^^ ^f ^^^ ^^^3^ c. l<ootor lacnornis parva, ] ^. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original British Museum (Natural History). Department of Zoology. [Birds]. London
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