WoRMS source details
Kapp, H. & W. Hagen, 1985. Two new species of Heterokrohnia (Chaetognatha) from Antarctic waters. Polar Biology, 4:53-59.
Two new species of the genus Heterokrohnia, H. longidentata and H. fragilis, are described and compared with the other three known Heterokrohnia species, H. mirabilis Ritter-Záhony 1911; H. bathybia Marumo and Kitou 1966 and H. involucrum Dawson 1968. The species have been found at great depths (1,000 m–2,000 m) near Elephant Island, north of the Antarctic Peninsula.