. The myology of the raven (Corvus corax sinuatus.) A guide to the study of the muscular system in birds . ont. In some specimens I have seen the posteriortendinous ends of the longissimus dorsi extend beyondthe hinder opening of this channel, and in some casesalmost reach the superior caudal muscles. Of course,in Reptiles, the muscle is continuous the entire lengthof the back and tail, to the very tip of the latter. In our subject the longissimus dorsi also arises bya series of short and distinct tendons alternately fromthe anterior and posterior extremities of the summitsof the neural spines
. The myology of the raven (Corvus corax sinuatus.) A guide to the study of the muscular system in birds . ont. In some specimens I have seen the posteriortendinous ends of the longissimus dorsi extend beyondthe hinder opening of this channel, and in some casesalmost reach the superior caudal muscles. Of course,in Reptiles, the muscle is continuous the entire lengthof the back and tail, to the very tip of the latter. In our subject the longissimus dorsi also arises bya series of short and distinct tendons alternately fromthe anterior and posterior extremities of the summitsof the neural spines of all the dorsal will be remembered that the free margins of theseneural spines above are bifurcated behind and pointedin front. Now the tendons of this series attached tothe points in front extend forwards and merge intothe muscle, and are tendons of insertion, while those Opistholenar (Innerer Bauch). Meckel, System, p. 291, No. dorsi. Gurlt, p. 18 ; Owen. ,, ,, Selenka, p. 94, No. 2. ,, ,, Watson, p. 56. Long du dos. Gervais et Alix, p. 13. 280 THE MYOLOGY OF THE - 72. FIG. 71.—The upper figure is a right lateral view of the first six cervical vertebra,including the axis and atlas (size, x 1J). « points to that portion ofthe intcrtransvcrsalis muscle which passes between the parapophyscs ofthe fifth and sixth cervicals. (See description in text.) FIG. 72.—Dorsal view of the sixth, seventh, and eighth cervical vertebrae ( x 2),showing representations of three other sets of deep muscles of thisregion—the intertransvcrsales, the interarticulares, and obliquo-trans-versalcs. Drawn by the author, from his dissections of the Raven. coming off from the tip of the bifurcation behind takejust the opposite course, and are additional tendons oforigin. So when we pull the muscle away from the THE MUSCULATURE OF THE TRUNK. 281 sides of the dorsal neural crests, a system of Xs areseen to be formed by these little tendons crossing eachother. The
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