46 Mr. W, S, Macleay on certain Birds of Cuba. 



curvature of slender beak are common to the Certhiadce and 

 Grallatores ; while the CuculidcB approach to the Rasores in such 

 genera as Corythaix and Musophaga. The following table, 

 therefore, will express several analogical relations of the utmost 

 value. 



SCAN SORES. IN SES SORES. AVES. 



PsiTTACiD^ representing the . . Dentirostres, and therefore the . . RAPTORES. 

 Rhamphastid/E joining the . . Conieostres, and forming part of . . INSESSORES. 



CucunD/E forming part of the . Scansobes, and joining the RASORES. 



Certhiad* joining the .... Tenuirostres, and representing the GRALLATORES. 

 PiciD/E representing the ... . Fissirostres, and therefore the . . NATATORES. 



communem liabet Picorum generi accedit." And again, (p. 31,) in speaking of the 

 affinities of the Woodpeckers, he says : " Additae sunt diiaj species Pici, tridactylus et 

 semirostris, quorum hie affinitatem longinquam quidem, sed tamen aliquam cum Rhyn- 

 chope, item semirostri ave ; ille autem cum Alcedine tridactyl^ indicat." Neither of 

 these relations, however, are truly those of affinity ; that of Picus semirostris to Rhyn- 

 chops being one of analogy ; and that o( Picus tridactylus to Alcedo being one of analogy, 

 or if not, of the affinity of transultation. 



JI. The 



