1888.] DR. H. GADOW ON THE REMIGES OF BIROS. 6.55 



Fig. 14. Miltochrista butleri, p. 603. 



16. Eugoa ? ohscura, p. 604. 



16. Siccia 7naculata, p. G05. 



17. Nolo, minutalis, p. 607. 



18. Heterogenea Julgens, p. 609. 



19. Northia tenuis, Butl., neuration of primary, p. 596. 



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



Plate XXXI. 



1. Epicopeia simulans, p. 611. 



2. Seudyra vcnvsta, p. 614. 



3. Spilosmna bisecfa, p. 61S. 



4. JJireta 2.>lumosa, p. 620. 



5. Artaxa pidverea, p. 623. 



6. Chcerotrlche staudingeri, p. 624. 



7. Orgyia thyclino, Butl., $ ; 7 a, semiapterous 5 , P- 626. 



8. Limantria alhofascia, p. 629. 



9. aurora, var. fiisca, p. 629. 



10. Ocneriafurca, p. 631. 



11. Rosama cinnamoraea, p. 637. 



12. 'Sola triangulalis, p. 608. 



Plate XXXII. 



1. Edema nivilinea, p. 638. 



2. Drgmonia manleyi, p. 639. 



3. delia, p. 640. 



4. Datanoidcs ap2>roximans, p. 636. 



5. Somera cyanea, p. 642, 



6. Argyris maia, p. 647. 



7. Drepana crocca, p. 649. 



8. Cymafopkora iristis, p. 652. 



9. maxima, p. 653. 



10. Polyplooa 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 nietacarijo-digital quills 

 have been examined by various ornithologists (Coues, Gerbe, Jeffries, 

 Wallace '), and have often been used as taxonomic characters. 



Prhicipal Literature referred to in this Paper. 



NiTzscH, C. L. System der Pterylographie. HaUe, 1840. 



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

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

 1843. 



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

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



44* 



