386 The American Naturalist. [May, 



13. A Latin adjective is best adapted for a specific name, it 

 should be short, euphonic and of easy pronunciation. It is, 

 however, permissible to use latinized Greek words or indecli- 

 nable barbaric words as: hipposid* m*, <<-hirn>r<HTUs, zigzag. 



14. The specific name must never be a repetition of the 

 generic name as : Trutta trutta. 



In case a varietal name is used it must never be a repetition 

 of the specific name as: Ambbjstoma j<f< r.soaianwm jefferso- 



15. The prefixes sub and pseudo can be used with adjectives 

 and nouns only, sub with Latin adjectives, pseudo with Greek 

 nouns as: subterraneus, subriridis, jisradacantJius, pseudophis, 

 pseudomys. 



These prefixes cannot be used with proper nouns. Words 

 like sub-wilsoni, pseiido-grateloupana are barbarous. 



16. The termination eidos or its Latin form oides can be 

 used only with Latin or Greek nouns. They cannot be used 

 with proper nouns. 



17. If the specific name requires the use of a geographic! 

 name this must be put in the genitive, or its adjective term 

 must be used if it was known to the Romans or latinized by 

 the writers of the middle ages. Used as an adjective it must 

 be written with a small letter as: ant ilia rum. hjbicus,xgyptiam, 

 graccus, burdigalensis, iemmsis, piimcurien.-iis, parisiensis. 



18. All geographical names which do not come under the 

 preceding category must be changed into adjectives following 

 the rules of Latin derivation and retain the exact spelling of 

 the radical if this has not been used in Latin as: nco-bataru*. 

 islandicus, brasiliensis, canadensis. 



19. If from the radical of the geographical name two Latin 

 adjectives have been derived as Inspamis and hispanicus they 

 both cannot be used in the same genus. 



20. This rule also applies to common names as : fluciorum-, 

 jl a via lis, fluvial His. 



