Ax, P.; Weidemann, E.; Ehlers, B. (1978). Zur Morphologie sublitoraler Otoplanidae (Turbellaria, Proseriata) von Helgoland und Neapel. [On the morphology of sublittoral Otoplanidae (Turbellaria, Proseriata) from Helogoland and Naples.]. Zoomorphologie, 90:113-133.
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Ax, P.; Weidemann, E.; Ehlers, B.
1978
Zur Morphologie sublitoraler Otoplanidae (Turbellaria, Proseriata) von Helgoland und Neapel. [On the morphology of sublittoral Otoplanidae (Turbellaria, Proseriata) from Helogoland and Naples.]
