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Show 368 MR. F. E. BEDDARD ON THE [Apr. 16, There are two recurrent tendinous slips to the tensor patagii longus tendon. One of these, the thinner and broader, arises from the anterior tendon of the brevis; the other, which runs almost parallel with it, arises close to the insertion of the tensor brevis, but distinctly from an extensor tendon of the forearm. In Ciconia nigra1, Mycteriaamericana"', and Tantalus leucocephalus there is only a single recurrent slip, which, however, in Ciconia, branches into a double insertion. There is. as is the case with other Storks, no biceps slip. The two latissimi <lorsi are fairly equal in size; the anterior has a completely fleshy insertion ; the posterior division is flat and strap-like, as is the anterior, but ends abruptly in two tendons of comparatively insignificant dimensions. One of these, the stronger, is inserted onto the humerus, headwards of but beside the tendon of the anconeus. The other is inserted on to the tendinous belly of the same muscle. This appears to be the usual insertion iu Storks and in the Flamingo, but not in Scopus. The deltoides major has the long second tendinous head from the scapula that is common if not universal in Storks. The main scapular head is, how ever, fleshy. The scapular tendon arises from the dorsal side of the scapula, and if the origin of the anconeus from the ventral border of the scapula were continued forwards it would meet that head. The anconeus longus has two plainly separate heads of origin which are both tendinous. One has been just referred to. The other is thicker and arises from the scapula nearer to the coracoid. A broad and thin tendon attaches this muscle to the humerus in the ordinary way. The serratus superficialis posterior is wide and thin, and largely tendinous ; it is attached to the posterior two-thirds of the scapula. It arises from the uncinate process of rib 1 to that of rib 3. The serratus superficialis anterior is a thick fleshy muscle attached to the scapula near to the coracoid end ; it arises from the first complete rib, and a considerable gap is left between its insertion and that of the superficialis posterior. It may be noted that the muscle arises only from its rib. and not also from a cervical rib as in some other Storks. The pars metapatagialis is strong. The serratus profundus (levator scapula1 of Weldon) consists of only two slips, neither of which are of large size. They arise respectively from the last cervical and the first dorsal rib. The biceps is two-headed as in other Storks. The expansor secundariorum is present and attached to the margin of the teres. The thigh-muscles of Anastomus are quite typically Stork-like, the formula being AXY-f, the complete one for a Stork '. The 1 Furbringer, Unters. Morph. Svst. Vogel, pi. xx. fig. 7. 2 Forbes M S. 1 Tliere is a feeble accessory femoro-caudal in Xenorhynchus australis. |