236 MARSHALL— A STUDY OF THE [June 19, 



bird, and in the descriptions and drawings are denoted by the let- 

 ers A, B, C, D, and E. The complex arrangement of the m. 

 propatagialis brevis should also be mentioned. 



Of the thigh muscles these were missing: m. ilio-femoralis ex- 

 ternus, m. ambiens, and mm. accessorii m. obturatoris. A muscle 

 herein denoted by the letter X was not given by Gadow. Pars 

 caudalis m. caud-ilio-femoralis differs from Gadow's description 

 and this difference is indicated in the table by placing the letter 

 representing it in parenthesis. M. caud-ilio-flexorius showed con- 

 siderable variation. 



BIBLIOGRAPHY OF THE ANATOMY OF THE CAPRIMULGI. 

 Beddard, F. E. 



1886. On the Syrinx and Other Points in the Anatomy of the Caprimulgidse. 



Proc. Zool. Soc. London. 

 i8g8. The Structure and Classification of Birds. London. 

 Blanford, W. T. 



1877. Letter on Capriraulgus unwini and some Batrachostomi. Ibis. 

 Clark, H. L. 



1894. The Pterylography of Certain American Goatsuckers and Owls. Proc. 



U. S. Nat. Mus. 

 1 901. The Pterylosis of Podargus : with notes on the Pterylography of Capri- 

 mulgi. Auk. 

 Coues, £. 

 1888. Notes on the Nomenclature of the Muscles of Volation in Birds' Wings. 



Auk. 

 1903. Key to North American Birds. Fifth edition. Boston. 

 Cuvier, G. 

 1795. Memoir sur le larynx inferieur des Oiseaux. Millin, Magasin encyclo- 



paed. I. Paris. 

 Fiirbringer, M. 



1888. Untersuchungen zur Morphologie und Systematik der Yogel. Amster- 

 dam. 



1891. Anatomie der Vogel. Mem. II. Orn. Congress. 

 Gadow, H. 



1889. On the Taxonomic Value of the Intestinal Convolutions in Birds. Proc. 

 Zool. Soc. London. 



1891. Vogel. Bronn's Klassen und Ordnungen des Thier-Reichs. Leipzig. 



Garrod, A. H. 



1872. On the Mechanism of the Gizzard in Birds. Proc. Zool. Soc. London. 



1873a. On Certain Muscles in the Thigh of Birds, and on their Value in Classifi- 

 cation. Ibid. 



1873b. On the Value in Classification of a Peculiarity in the Anterior Margin of 

 the Nasal Bones of Certain Birds. Ibid. 



