▁N aming ▁convent ions ▁and ▁termin ology ▁follow ▁the ▁International ▁Code ▁of ▁Zo ological ▁N omen cl ature . ▁Techn ical ▁terms ▁used ▁include : ▁ ▁Junior ▁syn onym : ▁A ▁name ▁which ▁describes ▁the ▁same ▁tax on ▁as ▁a ▁previously ▁published ▁name . ▁If ▁two ▁or ▁more ▁gener a ▁are ▁formally ▁designated ▁and ▁the ▁type ▁spec im ens ▁are ▁later ▁assigned ▁to ▁the ▁same ▁genus , ▁the ▁first ▁to ▁be ▁published ▁( in ▁chron ological ▁order ) ▁is ▁the ▁senior ▁syn onym , ▁and ▁all ▁other ▁instances ▁are ▁junior ▁syn onym s . ▁Senior ▁syn onym s ▁are ▁generally ▁used , ▁except ▁by ▁special ▁decision ▁of ▁the ▁IC Z N , ▁but ▁junior ▁syn onym s ▁cannot ▁be ▁used ▁again , ▁even ▁if ▁deprecated . ▁Junior ▁syn onym y ▁is ▁often ▁subject ive , ▁unless ▁the ▁gener a ▁described ▁were ▁both ▁based ▁on ▁the ▁same ▁type ▁spec imen . ▁N omen ▁n ud um ▁( Lat in ▁for ▁" nak ed ▁name " ): ▁A ▁name ▁that ▁has ▁appeared ▁in ▁print ▁but ▁has ▁not ▁yet ▁been ▁formally ▁published ▁by ▁the ▁standards ▁of ▁the ▁IC Z N . ▁Nom ina ▁n uda ▁( the ▁pl ural ▁form ) ▁are ▁invalid , ▁and ▁are ▁therefore ▁not ▁ital ic ized ▁as ▁a ▁proper ▁generic ▁name ▁would ▁be . ▁If ▁the ▁name ▁is ▁later ▁formally ▁published , ▁that ▁name ▁is ▁no ▁longer ▁a ▁nom en ▁n ud um ▁and ▁will ▁be ▁ital ic ized ▁on ▁this ▁list . ▁O ften , ▁the ▁formally ▁published ▁name ▁will