. The birds of South Africa. Birds. 16 SULID^ SULA Family II. SULID^. The members of this family, the Gannets and Boobies, are white and black, or brown birds living chiefly on the open sea and nesting generally on small islands. The characters are given below under the description of the only genus. Anatomical characters are—cervical vertibree, 18; dorsal vertebras without ventral processes ; clavicle not anchylosed to the sternum ; ambiens, femorocaudal and semitendenosus muscles only present; no syringeal muscles. Genus I. SULA. Sula, Brisson, Orn. vi, p. 494 (1760) Type. S. leuoogastra. Bi
. The birds of South Africa. Birds. 16 SULID^ SULA Family II. SULID^. The members of this family, the Gannets and Boobies, are white and black, or brown birds living chiefly on the open sea and nesting generally on small islands. The characters are given below under the description of the only genus. Anatomical characters are—cervical vertibree, 18; dorsal vertebras without ventral processes ; clavicle not anchylosed to the sternum ; ambiens, femorocaudal and semitendenosus muscles only present; no syringeal muscles. Genus I. SULA. Sula, Brisson, Orn. vi, p. 494 (1760) Type. S. leuoogastra. Bill stout and subcyliudrical, the culmen defined on either side by a distinct line ; both mandibles serrated, especially along their apical halves, the upper mandible bent down at the tip but not hooked, and with a distinct notch. Nostrils completely closed in the. Pig. 5.—Head of Sula capensis. x | adults, minute, rudimentary, and basal in the young ; a naked patch of skin round the eye and about the chin and throat. Wings long and pointed, first and second primaries the longest. Tail of from twelve to eighteen feathers, wedge-shaped and strongly graduated. Tarsus very short, considerably exceeded in leagth by the first and second toes, which are sub-equal; claw of the middle toe broad and pectinated on the inner 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 Stark, Arthur Cowell, d. 1899; Sclater, William Lutley, 1863-1944; Sclater, William Lutley, 1863-1944. Fauna of South Africa. London, R. H. Porter
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