1896.] RULES OF ZOOLOGICAL NOMENOLATUKB. 311 



enables us to retain the original (often Linnean) name, for which 

 there is in many cases great difficulty in finding a substitute that 

 all will agree upon. Moreover, the usage of the same generic and 

 specific term in such cases has now met with extensive acceptance 

 on the Continent. At the same time it is only right to call 

 attention to the formidable changes which the acceptance of the 

 tautonymie principle would cause in the names of some of our 

 most familiar animals. In order to show this clearly I give a list 

 of 25 species of well-known English birds for which we should 

 require a change of names if tautonyms are accepted'. 



3. The German Rules (Sect. 7) adopt the 10th edition of the 

 'Systema Naturaj' (1758) as the starting-point of Zoological 

 Nomenclature, whereas the Stricklandian Code (Sect. 2) adopts 

 the 12th (1766). 



The question of the proper edition of Linnseus's ' Systema 

 Naturae ' to be adopted as the starting-point of the binary system of 

 Nomenclature appears to be the most difficult of the three principal 

 questions now before us to settle satisfactorily, and to involve the 

 most serious consequences. It seems to me reasonable, on a prim d 

 facie view, that Linnaeus, having been the inventor and founder of 

 the binary system of Nomenclature, should be allowed the credit 

 and the privilege of completing his own work in the manner he 

 thought best. By adopting the twelfth edition of the ' Systema 



' List of Names of British Birds affected by tbe tautonymie principle. 



B. O. U. List. Page Tautonymie names, 



Sylvia cincrea 11. Sylvia syltria. 



Reguhts crisiatua 14. Begulus regulus. 



Hypolais icierina 17. Hypolais hypolais. 



Vmdus melanogaster 24. Cinchis cinches. 



Troglodytes par villus 29. Troglodytes troglodytes, 



Cardvelis elegans 47. Cardvelis carditelis. 



Serinus hortulanus 49. Seriniis serinus. 



Coccothrattstcs vulgaris 50. Coccothraustes coccothraustes, 



Fyrrhocorax graculus 66. Pyrrhocorax pyrrhocorax. 



Pica nistica 08. Picapica. 



Scops giu 89. Scops scops. 



Bubo ignaviis 90. Bubo bubo. 



Bwteo vulgaris 94. Buteo buteo. 



Tinnunculus alandarius 104. Tinimnculus tinnunculua. 



Fuligula cristata 129. Fuligttla fuligula. 



Tiirtur communis 139. Turtur iurtur. 



Perdix cinerea 142. Perdix perdix. 



Coturnix communis 143. Coturnix coturnix. 



Lagopus mutns 144. Lagopus lagopus. 



Tetrao tetrix 145. Tetrao tetrao. 



PoTzana marnetta 147. Porzana porsana, 



Crcx pratensis 149. Crex crex. 



Grus commmm 152. Grusgrus. 



(Edicnemus scolopax 155. (Edicnemns mdicnemiis. 



Fanelhis vulgaris 161. Vanelbts vanellus. 



now in the Library of the Linnean Society, it will be found that the second 

 scomber is altered, apparently in Linnajiis's own handwriting, into scombrus 

 (see note on this subject, ' Ibis,' 1895, p. 168). Instead of the Scomber-scomber 

 principle it would be better to call it the " tautonymie principle," and names 

 formed upon this principle tautonyms. 



