INTRODUCTION. IX 



Example : Rana esculenta marmorata Hallo well, but not Rana 

 esculenta (marmorata) or Rana marmorata Hallo well. 



" ARTICLE 19. The original orthography of a name is to be 

 preserved, unless an error of transcription, a lapsus calami, 

 or a typographical error is evident. 



" ARTICLE 25. The valid name of a genus or species can 

 be only that name under which it was first designated in the 

 condition : 



(a) That this name was published and accompanied by 

 an indication, or a definition, or a description ; and 



(b) That the author has applied the principles of binary 

 nomenclature. 



"ARTICLE 26. The 10th edition of Linne's " Systema 

 Naturse," 1758, is the work which inaugurated the consistent 

 general application of the binary nomenclature in zoology. 

 The date 1758, therefore, is accepted as the starting-point of 

 zoological nomenclature and of the Law of Priority. 



" ARTICLE 27. The Law of Priority obtains and conse- 

 quently the oldest available name is retained : 



(a) When any part of an animal is named before the animal) 

 itself ; 



(b) When the larva is named before the adult ; 



(c) When the two sexes of an animal have been considered 

 as distinct species or even as belonging to a distinct 

 genera ; 



(d) When an animal represents a regular succession of 

 dissimilar generations which have been considered as. 

 belonging to different species or even to different 

 genera. 



" ARTICLE 32. A generic or a specific name, once published,, 

 cannot be rejected even by its author, because of inappro- 

 priateness. Examples : Names like Polyodon, Apus, albus, 

 etc., when once published, are not to be rejected because of 

 a claim that they indicate characters contradictory to those 

 possessed by the animals in question. 



" Article 33. A name is not to be rejected because of 

 tautonymy, that is, because the specific or the specific and 

 subspecific names are identical with the generic name. Ex- 

 amples : Trutta trutta, Apus apus apus." 



As the use of trinomials for subspecies or, better, geographical 

 or local races does not seem to be generally understood, it may 

 here be explained that when a species is divided into two or more 

 races, or when two or more species are grouped as races of one 



