Taxonomy and postembryonic development of the Cryptorhagae, a new suborder for the mesopsammic kinorhynch genus v. 8721–39
Higgins, Robert P. 1968. "Taxonomy and postembryonic development of the Cryptorhagae, a new suborder for the mesopsammic kinorhynch genus Cateria." Transactions of the American Microscopical Society, 87 21–39.