#tunicate

• Ascidian — In zoology, a lower, sedentary marine animal from the tunicate phylum, having its body protected by a gelatinous or leathery tunic with two siphons through which water circulates. In botany, it represents a structurally modified leaf in the shape of a pitcher, urn, or cornet, specific to certain carnivorous plants (such as Nepenthes), adapted for capturing and digesting insects.