Word Meanings - BRANCHIOSTOMA - Book Publishers vocabulary database

The lancelet. See Amphioxus.

AMPHIOXUS
A fishlike creature , two or three inches long, found in temperature seas; -- also called the lancelet. Its body is pointed at both ends. It is the lowest and most generalized of the vertebrates, having neither brain, skull, vertebræ, nor red
LANCELET
A small fishlike animal , remarkable for the rudimentary condition of its organs. It is the type of the class Leptocardia. See Amphioxus, Leptocardia.