Archeterokrohnia casanova, 1986, a junior synonym ofHeterokrohnia Ritter-Záhony, 1911 (chaetognatha), with a review of the species ofHeterokrohnia
© Biologische Anstalt Helgoland 1991
The characters which have been advanced to separateArcheterokrohnia Casanova, 1986, fromHeterokrohnia Ritter-Záhony, 1911, are discussed; they are considered to be insufficient to warrant the erection of a separate genus. A further argument against the separate status ofArcheterokrohnia is the greater similarity ofArcheterokrohnia rubra Casanova, 1986, toHeterokrohnia longicaudata Hagen & Kapp, 1986, than toA. palpifera Casanova, 1986. Various reasons are given for the retention ofH. longicaudata inHeterokrohnia and against its transfer toArcheterokrohnia. The 13 species recognized and assigned toHeterokrohnia are reviewed; all characters used are tabulated and all species figured.