Phylliroidae

The Phylliroidae are a family of nudibranch sea snails, highly adapted to a pelagic lifestyle and occurring in tropical surface waters around the globe. The two species of the genus Phylliroe and Cephalopyge trematoides that have been assigned to this family are small to average in size (up to 5.5 centimetres or 2.2 inches), slender and highly transparent. They swim by undulating their whole body. Their foot is very small, which helps to reduce drag. They are carnivores that prey on planktonic jelly fish.^[1]

Phylliroidae
Phylliroe bucephalum
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Order:	Nudibranchia
Suborder:	Cladobranchia
Superfamily:	Tritonioidea
Family:	Phylliroidae Menke, 1830
Genera
Cephalopyge Hanel, 1905 Phylliroe Peron and Lesueur, 1810