| OCR Text |
Show 1891.] ANATOMY OF THE KAGU. 13 extends about halfway down the humerus, being therefore larger than in the Herons. (6) The Anconceus longus arises from the neck of the scapula by two distinct origins ; one is chiefly fleshy, the other is formed by a short stout tendon and is placed nearer to the free end of the scapula than the other. The muscle is, as has been already mentioned, attached to the humerus by a flat tendon which joins that of the posterior latissimus dorsi. The presence or absence of this tendon Muscles of fore limb of Bhinochetus. D, B2, deltoid; L.d. 1, L.d.2, latissimi dorsi; Bi.l, biceps; Bi.2, accessory biceps; N, nerve. is often a fact worth noting for classificatory purposes. Most of the allies of Rhinochetus, however, are provided with the tendon in question. (7) The Biceps (fig. 2, A M ) arises by two distinct heads, as is so generally the case among birds, by a long slender tendinous head from the coracoid and by a broad fleshy origin from the humerus. Just at its insertion the tendon of the muscle divides into two, one being attached to the radius, the other to the ulna. |
