1888.] DR. H. GADOW ON THE REMIGES OF BIRDS. 655 



Fig. 14. Miltochrisfa butleri, p. 603. 



15. Eugoa? obscura, p. 604. 



16. Siccia maculata, p. 605. 



17. Nola miimtalis, p. 607. 



18. Heferogenea fulgens, p. 609. 



19. Northia tenuis. But!., neuration of primary, p. 596. 



20. sinensis, Walk., neuration of primary, p. 595. 



Plate XXXI. 



1. Epicopeia simulans, p. 611. 



2. Seudyra veimsta, p. 614. 



3. SpHosoma bisecta, p. 618. 



4. Bircta plumosa, p. 620. 



5. Artaxa pulverea, p. 623. 



6. Chcerotriche staudingeri, p. 624. 



7. Orgyia thyeUnn, Butl., 5 ; 7 a, semiapterous 5 > \>- 626. 



8. Limantria albofascia, p. 629. 



9. aurora, yar. fiisca, p. 629. 



10. Ocneriafurva, p. 631. 



11. Eosama cinnamomea, p. 637. 



12. ^ola triangulalis, p. 608. 



Platk XXXII. 



1. Edema niviUnca, p. 638. 



2. Drymonia manleyi, p. 639. 



3. delia, jj. 640. 



4. Datanoides approximans, p. 630. 



5. Somera cyanea, p. 642, 



6. Argyris maia, p. 647. 



7. Brepana crocca, p. 649. 



8. Cymatophora tristis, p. 652. 



9. maxima, p. 653. 



10. Polyploca ornata, p. 653 ; 10 a, var. unicolor, p. 654. 



4. Remarks on the Numbers and on the Phylogenetic 

 Development of the Remiges of Birds. By Hans 

 Gadow, Ph.D., M.A., F.Z.S., Strickland Curator and 

 Lecturer on the Advanced Morphology of Vertebrata 

 in the University of Cambridge. 



[Eeceived NoTember 30, 1888.] 



Part I. 



The number and size of the primaries or nietacarpo-tligital quills 



have been e.xamined by various ornithologists (Coues, Geibe, Jeffries, 



Wallace ^), and have often been used as taxonotnic characters, 



1 Priiwipal Literature referred to in this Paper. 



NiTzscH, 0. L. System der Pterylograpbie. Halle, 1840. 



SuNDEVALL, 0. J. " On the Wings of Birds." Ibis, 1886, pp. 389-457. Trans- 

 lated from the Swedish original in Kongl. Vetenskaps-Akad. Handlingar, 

 1843. . , 



Wallace, A. R. " On the Arrangement of the Families constituting the order 

 Passeres." Ibis. 1874, pp. 406-416. 



44* 



