Arboreal salamander 
Arborescent pricklypear 
Arborvitae Leafminer 
Arc-eye hawkfish 
Arcfin Shrimpgoby 
Arch Duke Butterfly 
Archaeoattacus edwardsii 
Archaeoattacus malayanus 
Archaeoses polygrapha 
Archaereta dorsivittella 
Archarius crux 
Archarius pyrrhoceras 
Archarius salicivorus 
Archasia belfragei 
Archbolds newtonia 
Archduke 
Archduke Butterfly 
Arched hooktip 
Arched marble 
Archichauliodes guttiferus 
Arching Brassia 
Archips rosana 
Archonias sisamnus 
Arcigera flower moth