Letters, Extracts, Announcements, &:c. 175 



There are^ however, still left a considerable number of 

 which I have not as yet succeeded in obtaining any examples ; 

 and of these I append a list. It is naturally my wish to 

 make the ' Anatomy of Birds ' as complete as possible, and 

 to examine, for that purpose, as many forms of birds as can 

 be obtained. I hope, therefore, that any members of the 

 B. O. U., or travellers or naturalists generally, Avho may have 

 it in their power to obtain specimens of any of these my 

 " desiderata," will do all they can to enable me to acquire 

 these forms. 



Passeres. — In this group of birds there is so much uni- 

 formity in anatomical structure that my desiderata are com- 

 paratively few, and mostly confined to some of the more 

 obscure forms and to the MesomyodcB. I may mention the 

 following as being desirable : — 



Of the Old-world forms, EuRYLiEMiDiE, especiallj'^ Corydon 

 and Calyptomena ; Philepitta ; Hydrornis and Melampitta ; 

 Orthonyx (particularly wanted) ; Atrichia ; Climacteris, Sit- 

 tella, Xenicus, Acanthisitta ; Drepanis, or any of its allies 

 {Psittirostra &c.) ; Grallina ; Drymodes, Psophodes, Petroeca ; 

 Eupetes ; Irena and any Dicj'uridce ; Euryceros ; Falculia and 

 Bupliaga. 



Of American forms, Cham<2a ; Procnias and Pipridea ; 

 also any of the Mesomyodian (Formicarioid) groups, especi- 

 ally Phytotoma and OxyrhampTius, both particularly wanted, 

 and any of the larger Cotingine forms, such as Ptilochlor.is, 

 Cephalopterus, Gymnoderus, Querula, Phcenicocercus, &c. 



BuccoNiDiE. This is the only group of birds, of any size, 

 of which I have as yet been utterly unable to procure spirit- 

 specimens. Any will be therefore most acceptable. 



MEROPiDiE, GALBULiDiE, and Trogonid^. Any species 

 will be acceptable, particularly any of the Old-world Trogons, 

 CoRACiiDiE. Eurystomus and any of the anomalous Ma- 

 dagascar forms {Atelornis, Brachypteracias, &c.) . 



Alcedinid^. Almost any except Alcedo, Dacelo, and 

 Ceryle. 



IJpupiD^. Any, especially Irrisor. (It is uncertain 

 whether it really belongs here.) 



