1880.] 



ANATOMY OF PASSERINE BIRDS. 



391 



( i. DESVIODAOTfLI. 



(The plantar vinculum retained ; 

 manubrium sterni not forked.) 



ii. ELEUTHERODACTYLI. 

 (The plantar vinculum lost; 

 manubrium generally strongly 

 forked.) 



A. Mesomyodi. 



Hetekomeri. 





HOMCEOMEal'. 



Haploophouse. 



Tracheophouiie. 



B. Acromyodi. 



New World. 



'Pipridm. 

 Cotmgidee. 



Tyrannida. 

 Bupicola. 



DeiidrocolaptidcB. 



Furnariid(B. 



PteroptochidcB. 



Old World. 

 Bhirylamidcs. 



PhilepMidts. 

 Pittidce. 



Abnorjiales. 



Atrichiidte. 

 Menund(B. 



NOBMALES. 



Till more material has been examiaed, it is impossible to say 

 whether or not some of the points in the above classification fairly 

 express the affinities of the various groups treated of. This appears 

 to me particularly the case as regards the primary division of the 

 Mesomyodi into Hetero- and Homceomeri, depending as it does on 

 the presence of the femoral or the sciatic artery respectively. 



The pseudo-schizorhiual character of the skull also in some of the 

 Tracheophonse " may necessitate an ultimate arrangement of that 

 group different from that here adoptei (taken from Messrs. Sclater 

 and Salvin's 'Nomenclator'). 



As regards the Passeres whose anatomy still remains unknown, the 

 forms that most require examination &YePhytotomaa.ndi Oxijrhamphus^ 

 of the New, and Orthonyx and Melampitta of the Old World. The 

 last may be, as suggested by Mr. Gould ^, a link between Pitta and 

 Philepitta ; Count Salvadori ^ on the other hand, is inclined to regard 

 it as a Timeliine and therefore a normal (Oscine) Acromyodianform. 

 It is also highly desirable to obtain some knowledge of the soft parts 

 of some of the larger forms usually placed amongst the CotingidcB, 

 especially Ptilochloris and PAcenicocercus (placed by Sundevall with 

 Rupicola), as well as of Qymnoderus, Querida, Cephalopterus, &c. 



^ I place Philepitta only provisionally amongst the Homceomeri, presuming 

 that, as in all Passeres but the Piprida and Cotingidm (minus Bupicola), the 

 artery of the leg is the sciatic. 



2 Cf. Garrod, P. Z. S. 1877, p. 452, &c. 



^ Very imperfectly described by Ey t on aud Eydoux and Souleyet, cj. Job, 

 Miiller, Stimmorgane, &c., p. 8. 



*■ B. New Guinea, pt. ii. (1876). ' Ann. Mug. Oiv. Gen. x. p. 147. 



