The genus Sericulus is peculiar to 3, but only two species — Meniira 

 alberti and Collyriocincla cerviniventris — are limited to it. 



Area 4. — This is the southern extension of 3, and with it is closely 

 associated 5 ; indeed, the latter may be expanded as a southern 

 oiFshoot of 4. The two areas 4 and 5, on the other hand, differ in 

 important respects from 6 and 7. Of the 71 genera 121 species there 

 are 4 genera 28 species absent from 3 ; 21 genera 52 sjjecies absent 

 from 6 ; 25 genera 66 species absent from 7. In 5 there are 39 

 genera 90 species absent. Genera absent — in 3, Pycnoptilus, 

 Monarcha, Calamanthus ; in 6, Oriolus, Myiagra, Sphenura, 

 Psophodes, Atrichia ; in 7, Pycnoptilus, Menura ; in 5, ^gintha, 

 Ptilonorhynchus, Piezorhynchus, Menura. 



The genus peculiar to this area is Pycnoptilus, the species 

 Manorhina melanophrys, Ptilotis cassidix, Menura superba, Menura 

 victoriae, Sericornis osculans, Pycnoptilus floccosus. 



Area 5. — The insular area of 4. Of 34 genera 55 species, it does 

 not appear to hold a genus not common with 4, unless Acanthornis 

 (of Legge, Sericornis of other authors) stands alone. The relation- 

 ship is not so strong with 6, for while 1 genus 14 species are not in 

 4, there are 4 genera 29 species not found in 6. 



The reciprocal of 6 to 5 in number of genera and species (36 genera 

 103 species) is practically the same as that of 4 to 5 (39 genera 90 

 species). Genera absent in 6, Myiagra, Cisticola, and Stipiturus 

 (all present in 4). Peculiar to the island are 14 species. 



Area 6. — Apparently the relation is to 7, 9, and 4, in that order. 

 The total number of genera is 65, species 117. Absent in 4 are 1 7 genera 

 53 species; in 9, 11 genera 61 species; in 7, 5 genera 24 species. 

 Genera absent — in 4, Drymaoedus, Xerophila, Oreoica, Entomophila, 

 Amytis ; in 9, Corcorax, Lalage, Smicrornis, Stictoptera, Entomyza ; 

 in 7, Eopsaltria, Meliornis, Acanthorhynchus, Pseudogerygone, 

 Cbibia (all in 4). The species jjeculiar to this area are Xerojjhila 

 pectoralis and Mirafra secunda. 



Area 7. — It has 65 genera and 126 species, and although it apj)ears 

 to be more closely related to 6, it is closely related to 3. In this area 

 there are 5 genera 29 species absent from 6; 10 genera 49 species 

 absent in 3 ; 16 genera 46 species absent in 9 ; 19 genera 69 species 

 absent in 2 ; 21 genera 68 species absent in 4 ; 26 genera 96 species 

 absent in 1 ; 31 genera 92 s^jecies absent in 8. Area 5 is practicallj"4. 



In the separate areas it will be noticed that the relationship 

 between area 7 and other areas is in the following order : — 8, 1, 4, 2, 

 9, 3, 6, area 8 showing the most marked difference, and 6 the 

 strongest affinity. The closest relationship ajipears to be to 6, then 



3, 9, 2, 4, 1, 8 in order. The boundary between 6 and 7 is not a strong 

 one. In 7, absent from 6, are — Bathilda, Emblema, Aidemosyne, 

 Myiagra, Gerygone ; absent from 3, Struthidea, Amytis, Drymaoedus, 

 Calamanthus, Entomophila ; absent from 9, Lalage, Smicrornis, 

 Myiagra, Sphenostoma, Entomyza ; absent from 2, Pteropodocys, 

 Acanthochasra, Amytis, Calamanthus, Staganopleiua ; absent from 



4, Chlamydodera, Xerophila, Oreoica, Entomophila, Emblema; 

 absent from 1, Corcorax, Cinclosoma, Acanthiza, Falcmiculus, 

 Strepera; absent from 8, Amytis, Sericornis, Hylacola, Zosterops, 

 Megalurus. There are no known genera peculiar to 7. The follow- 

 ing species are not beyond it : — Rhipidura albicauda, Amytis goyderi, 

 Calamanthus isabellinus, Xerophila nigricincta. 



