Neue Neorhabdocoela (Turbellaria) vom Sandstrand der Nordsee-Insel Sylt
Ax, P.; Heller, R. (1970). Neue Neorhabdocoela (Turbellaria) vom Sandstrand der Nordsee-Insel Sylt. Mikrofauna des Meeresbodens, 2. Akademie der Wissenschaften und der Literatur: Mainz. 1-44 (55-98) pp.
Part of: Mikrofauna des Meeresbodens. Akademie der Wissenschaften und der Literatur: Wiesbaden. ISSN 0342-3247
The four genera Mariplanella nov. gen., Adenorhynchus Meixner, Litucivis nov. gen., Listea nov. gen. and a new species of the genus Haloplanella Luther (Suborder Typhloplanoida) are treated. Furthermore a new species of the genus Neoschizorhynchus Schilke (Suborder Neorhabdocoela) is described. They are all typical inhabitants of the interstitial system of marine sand (Mesopsammal). The systematic position of Mariplanella frisia is still problematic. We propose a new subfamily Mariplanellinae of the family Trigonostomidae. The genera Adenorhynchus, Litucivis and Listea are a monophyletic group and form a new subfamily Adenorhynchinae within the family Promesostomidae. In Litucivis serpens we often found a doubling of the male copulatory organ. Listea simplex probably represents a free-living dioecious species. Both these phenomena are unknown in the order Neorhabdocoela till now. Neoschizorhynchus parvorostro of the family Schizorhynchidae has the smallest bifurcate proboscis of the Kalyptorhynchia.
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