File:The structure and classification of birds (1898) (14747315604).jpg

Identifier: structureclassif00bedd (find matches)
Title: The structure and classification of birds
Year: 1898 (1890s)
Authors: Beddard, Frank E. (Frank Evers), 1858-1925
Subjects: Birds -- Anatomy Birds
Publisher: London New York (etc.) Longmans, Green, and co.
Contributing Library: MBLWHOI Library
Digitizing Sponsor: MBLWHOI Library

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nt of affinity withthe owls is marred by its occurrence in toucans, &c. (seep. 192).The coracoids slightly overlap, as in some Accipitres. Whatever may be thought about Pandion, it is clearthat the separation of the secretary bird to form a distinctfamily, Serpentariidse, is perfectly justifiable.1 Serpentarius has basipterygoid processes, and its muscleformula is BXY + . The tensor patagii l> rev is is more stork or crane like thanaccipitrine, and indeed resembles Cathartes in the presence of 1 The claims of Poltjboroides to be a member of this family have been dis-missed by MiLNE-Ei>\vABDS (Hist. Xnt. Madagascar) and myself (loc. cit. onp. 474). 480 STRUCTURE AND CLASSIFICATION OF BIRDS a slip (see fig. 227) uniting the brevis and longus tendon. Itmust be remembered, however, that this also exists in someeagles. In Serpentarius there is a longer attachment of thedeltoid to the humerus than in other birds of prey ; and thereis an accessory biceps muscle (see fig. 227).: tfl
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FIG. 227.—TENSORES PATAGII OF Serpentarius (AFTER BEDDARD). t.p.l, tensor longus ; t.p.br, tensor brevis ; Bi, biceps ; Hi, accessory bicc-is :Anc, anconseus ; />, deltoid. The anconceus has a very broad tendon of origin fromhumerus. In the syrinx a strong box is formed by the last trachealring, and the intrinsic muscles are attached to bronchialsemi-ring 2. There is a powerful expansor secundariontui. 1 Cf. Rhinochctus, p. 371. ACCIPITRES 481 JfffX The skull has strong basipterygoid processes. Thelacrymals are large and extend backwards in close connec-tion with the skull wall; they are not ankylosed to it. Thedescending process is thin and articulates with the slightectethmoid. There is a small knife-shaped vomer. The family Cathartidae consists of the genera Sarco-rluimplius (condor), Gyparchus (or Gypagus, king vul-ture), Cathartes (turkeyvulture), and Eliinognj-plius. They all have, sofar as is known, the oilgland nude, twelve rec-trices, no after shaft, andare aquincubital.

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