Andwakiidae with the body divisible into physa, scapus and capitulum. Scapus smooth, without tenaculi but with cinclides, capitulum very short. Sphincter mesogloeal, small, situated at the margin. Tentacles rather numerous. 2 siphonoglyphs. Mesenteries distinctly divisible into macro- and microcnemes, 6 pairs perfect and fertile. More mesenteries at the margin than at the physa. Retractors of the macrocnemes strong, somewhat restricted. Parietal muscles rather weak. Acontia few.
Andwakia Hozawai [sic] Uchida 1932
Definitions and contained taxa are those of Oscar Carlgren as published in 1949 : Kungl Svenska Vetenskapsakadamiens Handlingar, Series 4, Volume 1, Number 1