Bipinnaria, the technical name of a starfish larva. It is a curiously-shaped free-swimming form, with two ciliated bands, and with a tendency to develop long stilt-like arms or processes. It does not directly turn into the adult, but is only its 'nurse.' The adult is formed within the bipinnaria. See ECHINODERMS, STARFISH.
Bipinnaria
Chambers's Encyclopaedia, Volume 2: Beaugency to Cataract, p. 162
Source scan(s): p. 0173