. The myology of the raven (Corvus corax sinuatus.) A guide to the study of the muscular system in birds . he integumentsand no more, along the line which I have indicated bythe letters inc. in Fig. 35 quat., and then carefully andcompletely reflect this skin-flap in both directions untilall the superficial muscles of the arm and forearm areexposed, even to the tendon which extends from theshoulder to the wrist (tp. L), in the free margin of theduplicature of the skin in which these muscles are practice we soon learn the best way of doing this,and in the case of all ordinary sized bir
. The myology of the raven (Corvus corax sinuatus.) A guide to the study of the muscular system in birds . he integumentsand no more, along the line which I have indicated bythe letters inc. in Fig. 35 quat., and then carefully andcompletely reflect this skin-flap in both directions untilall the superficial muscles of the arm and forearm areexposed, even to the tendon which extends from theshoulder to the wrist (tp. L), in the free margin of theduplicature of the skin in which these muscles are practice we soon learn the best way of doing this,and in the case of all ordinary sized birds, our left handsoon learns how to hold the wing in such a way that theparts to be examined are kept on the stretch, thus faci-litating our examinations and study, which latter maynow be undertaken. Professor Garrod chose the wing of Icterus vulgaristo illustrate the arrangement of the patagial muscles in thePasseres, and it will be seen by an examination of his 112 THE MYOLOGY OF THE RAVEN. figure given below (Fig. 35 quin.) that he found in thatspecies the tendon of the dermo-tensor patagii merging. FIG. 35 quat.—The plucked body of a medium sized passerine bird, with itspterylosis not shown, but with the patayial muscles of the arm inblack, and supposed to be seen through the skin ; dt. p., dermo-teusorpatagii; tp. L, tensor patagii longus ; and tp. b., the tensor patagiibrevis ; inc., the line of incision to be made in order to expose them forexamination. Drawn by the author. with the tendon of the tensor patagii longus, near theshoulder-joint, much in the same way as the present THE MUSCLES OF THE UPPER EXTREMITY. 113 writer found it to exist in the Baven and other this connection the reader should refer back tothe account of the dermo-tensor patagii in the presentwork (No. 6). We would naturally expect this to be the case, asIcterus and the Eaven are members of nearly relatedfamilies.
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