[ 211 ]. 



VI. On the Myology of the Tongue of Parrots, ivith a Classification of the Order, hasecL 

 ttpon the Structure of the Tongue. By Geo. P. Mudge, A.R.C.S. Lond., F.Z.S., 

 Lecturer on Biology, London School of Medicine for Women ; and Demonstrator 

 of Biology, London Ilosjntal Medical School. 



Received March 4, read April 2, 1901. 



[Plates XXVI.-XXIX. & Text-figures 1-16.] 



X HIS investigation owed its origin to a suggestion of Prof. Howes, and was commenced 

 in 1896, during my tenure of the Marshall Scholarship, in the Huxley Laboratory, 

 Koyal College of Science, London. A preliminary paper was communicated to this 

 Society In 1897, but its subject matter was not published, as it was deemed advisable 

 to incorporate it in the finished work. 



I have to express my thanks to the Prosector of the Society, to Professors Stewart, 

 Howes, and D'Arcy Thomson, and to Mr. W. P. Pycraft, for the loan of the greater 

 portion of my material. To my past teacher, Professor Howes, and to Dr. P. Chalmers 

 Mitchell I have further to express my thanks for valuable advice given in the pre- 

 paration of the manuscript for the press. 



The scientific names of the Parrots, the tongues of which I have described, are those 

 adopted by Salvadori. With but a few exceptions, the birds have been very carefully 

 compared with his descriptions, as made in his Catalogue of Parrots, and in those cases 

 (when tongues only were supplied to me) where identification was not possible, I have 

 carefully worked out the synonymy. 



With regard to technical terms, I follow the osteological terms of Mivavt (6 & 7) 

 and the myological of Gadow (4) and of Nitzsch (2). 



The classification of the Order, appended to this memoir, is designed merely as an 

 index showing the general trend of the ascertained facts relating to the tongue. 



Part L— HISTORICAL. 



Although the Parrots have occupied the attention of naturalists to a considerable 

 extent, their tongues, so far as internal structure is concerned, have received but little 

 notice. 



It is now nearly forty years since Giebel described the hyoid bones of several species 

 of Parrots, and more than thirty since Nitzsch's paper was published in which the 

 lingual myology of Ara macao {Fsittacus macao Nitzsch) and Chrysotis leucocephala 



VOL. XVL — PART V. No. 1. — Octohcr, 1902, 2i 



