Zoological Nomenclature. 183 



4. 



A generic name is to be rejected when it has previously been 

 used for some other genus of animals. 



A specific name is to be rejected when it has previously been 

 used for some other species or subspecies of the same genus. 



6. 



Rejected homonyms* can never again be used. Rejected syno- 

 nyms * can never again be used except in cases of the restoration of 

 erroneously suppressed groups. 



Examples : Tcenia Giardi, Moniez, 1879, was suppressed as a 

 synonym of T. ovilla, Rivolta, 1878 ; later on it was discovered that 

 T. ovilla was preoccupied (T. ovilla, Grmelin, 1790). T. ovilla, 1878, 

 is suppressed as a homonym, and can never again be used ; it was 

 superfluous, and cannot be employed, even if the species is placed 

 in another genus (Thysanosoma). T. Giardi, 1879, which was 

 suppressed as a synonym, becomes valid upon the suppression of the 

 homonym T. ovilla. 



7. 



A name once published cannot be rejected even by its author 

 because of inapplicabilit} - . 



8. 



Majority (Blanchard, Carus, Sclater) : 



All grammatical errors must be corrected ; at the same time 

 hybrid names are to be retained without emendation. 



Examples : correct Cuterebra to Cutiterehra, Glossiphonia to 

 Glosson^honia, but do not change Vtrmipsylla to Ilelminthopsylla. 



Minority (Jentink, Stiles): 



Barbarisms and solecisms shall be construed (under B. 35 h) as 

 arbitrary combinations of letters, and cannot be rejected or emended 

 because of faulty construction. Hybrid names are to be avoided, 

 but when once published are not to be rejected. 



II. Generic and Subgeneric Names. 



9. 



A generic name must consist of a single word, preferably a noun, 

 simple or compound, but always written as one word in the nomi- 

 native singular (see Rule 1). 



* A homonym is one and the same name for two or more different 

 things. A synonym is one of two or more different names for one ami 

 the fame thing. In the example given, T. ovilla, 1878, and T. ovilla, 1790, 

 are homonyms, while T. ovilla, 1878, and T. Giardi, 1879, are synonyms. 

 Rule b' is simply a more detailed wording of the poorly expressed and 

 too often misinterpreted " Once a synonym, always a synonym." "Once 

 a homonym, always a synonym," is correct, but "Once a synonym, 

 always a synonym," is iuexiict. — 0. W. S. 



