Redescription ofHeterokrohnia mirabilis Ritter-Záhony, 1911 (Chaetognatha)
© Biologische Anstalt Helgoland 1991
The genusHeterokrohnia Ritter-Záhony, 1911 is redefined and the speciesH. mirabilis Ritter-Záhony, 1911 redescribed. The redescription is based upon the type specimens from Antarctic waters and additional specimens from Atlantic and Arctic waters. The species is compared to others of the genus. Furthermore, the identity of certain specimens reported asH. mirabilis is discussed.