app/models/nomenclatural_rank/icnp/genus_group/subgenus.rb
class NomenclaturalRank::Icnp::GenusGroup::Subgenus < NomenclaturalRank::Icnp::GenusGroup
def self.parent_rank
NomenclaturalRank::Icnp::GenusGroup::Genus
end
def self.valid_parents
[NomenclaturalRank::Icnp::GenusGroup::Genus.to_s]
end
def self.abbreviation
'sgen.'
end
end