- interantennular septum
- A median, ventrally directed, cuticular outgrowth that separates the two cavities into which each antennule is retracted. See: orbito-antennulary pits [Ingle, 1980].Plate in some malacostracans that separates one antennular cavity from other. (Syn. proepistome) [Moore and McCormick, 1969].Plate separating antennular cavities in some malacostracans. (Syn. preopistome) [McLaughlin, 1980].The plate which separates the two antennular cavities from each other, formed by the union of a slender anterior process of the epistome and the front [Ingle, 1983].(Order Decapoda):On anterior margin of carapace, median, ventrally directed, cuticular outgrowth extending from front to proepis-tome; separates left and right antennules as well as cavities into which each antennule may be retracted [Stachowitsch, 1992].
Crustacea glossary. Natural History Museum of Los Angeles County. 2011.