Zoological Nomenclature. 189 



varietal names, the varietal name, if adjectival, agrees with it 

 grammatically. 



Example : Corvus corax var. kamtsckatica. 



If the word varietas is not used, the varietal name agrees gram- 

 matically with the generic name. 



Example: Corvus corax Tcamtschaticus. 



34. 



a. In the notation of hybrids the name of the male parent pre- 

 cedes that of the female parent, and is united to it by the sign of 

 multiplication ( X ). The use of the sexual signs is not necessary. 



Examples : Capra hircus x Ovis aries, or Capra hircus J x Ovis 

 aries £ • 



b. Hybrids may also be cited in form of a fraction, the male 

 parent forming the numerator and the female parent the deno- 

 minator. 



Example: ? a *>™ hirC ™ . 



Ovis aries 



The fractional form is better, in that it permits the citation of the 

 observer when this is desirable, also in case one of the parents is a 

 hybrid. 



Examples : 



Branta canadensis Tetrad tetrix x Tetrao urogallus 

 Cygnopsis cygnoide-s' Gallus gallinaceus 



In the latter case, however, parentheses may be used. 

 Example : (Tetrao tetrix X Tetrao urogallus) x Gallus gallinaceus. 



c. When the parents of a supposed hybrid are not definitely 

 known, the latter takes provisionally a specific name, the same as if 

 it were a true species ; but the generic name may be preceded by 

 the sign of multiplication. 



Example : x Helminihophila leucobronchialis. 



35. 



The following words may be taken as generic names : — 



a. Greek substantives, for which the rules of Latin transcription 

 should be followed. 



Example : Ancylus, Ampliibola, Pompholyx, Cylichna. 



The transcription should be made according to the following 

 list :— 



e = e (vaXeos) ^. . . Hyalea, not Hyla>a. 



tf=e (it€tpt)vq) Pirena, not Pirina. 



Final »; = a (ireiprjvr)) .... Pirena, not Pirine. 



d = th (rtjdus) Tethys; aTrjdos — stethus, not sthetu*. 



1=1 (ftaXiot) Balia, not Balea. 



Ann. & Mag. X. Hist. Ser. 7. Vol. ii. 1-L 



