BY W. J. S. McKAY. 353 



In Westling's description of this nerve in OrnitlLorhynchns, she 

 remarks that Fiirbringer describes a dori^al and ventral branch, 

 and she goes on to say — " Diesen dorsalen Ast habe ich nicht 

 gefunden und weiss nicht, welchen Muskeln Fiirbringer die 

 Namen Supra- und Infraspinatus giebt." In the description of 

 the N. supracoracoideus in the Echidna, however, Westling gives 

 a full account of all the branches, which account agrees with what 

 we ourselves have found. 



LITERATURE. 



1. Birmingham, — . On the Homology and Innervation of the 

 Achselbogen. Proc. Roy, Acad. Med., Dub. Jour, of Med. 

 Sci. Ser. iii. No. cii. p. 156, 



2. Brukhl, G, Zootomie aller Thierklassen (Wien, 1875) Lief. 



4, Taf. xiv. fig. L 



3. COUES, E. On the Myology of the Ornithoi-hy^ichus. Proc, 



Essex Inst. Vol. vi. P. iii. 1871. 



4. CuviKR and Laurillard. Anatomie Coraparee. Recuil de 



Planches de Myologie, 1849. 



5. Fewkes, J. W. Contributions to the Myology of Tachyglossa 



hystrix. Bull. Ess. Inst. Vol. ix. 1877, [Not 1855 as on 

 p, 264 antea.^ 



6. Flower, W, H,, and Gadow, H, An Introduction to the 



Osteology of the Mammalia. Third edition, London, 1885. 



7. FuERBRlNGER, M. Zur veigleichenden Anatomie der Schulter- 



muskeln. Morph. Jahrbuch, Bd. i. (Leipzig, 1876). 



8. Galton, J. C. The Muscles of the Fore and Hind Limbs 



in Dasypus sexcinctus. Trans. Linn. Soc. xxvi, p, 533. 



9. GiEBEL, C. G. In Bronn's " Klassen und Ordnungen des 



Thier-Reichs " (Leipzig u. Heidelberg, 1877), Band vi. 

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10. Howes, G. B. On the Mammalian Pelvis. Journ of Anat. 



and Phys. Vol. xxvii. 1893. 



11. Humphry, G. M. (1) On the Muscles and Nerves of Cryjoto- 



branchus ; (2) On the Disposition of Muscles in Vertebrate 

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