Feeding habits of the Oligocene bristlemouth fish Scopeloides glarisianus (Teleostei: Stomiiformes: Gonostomatidae) |
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| Authors: | Tomá? P?ikryl Artém M Prokofiev Wies?aw Krzemiński |
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| Institution: | 1. Institute of Geology, Academy of Sciences of the Czech Republic, v.v.i., Rozvojová 269, 16500 Prague 6, Czech Republic;2. Institute of Geology and Palaeontology, Charles University in Prague, Albertov 6, 12843 Prague 2, Czech Republic;3. A.N. Severtsov''s Institute of Ecology and Evolution, Russian Academy of Science, Leninski Prospekt, 33, 119071 Moscow, Russia;4. Paleontological Institute, Russian Academy of Science, Profsoyuznaya ul., 123, 117997 Moscow, Russia;5. Institute of Systematics and Evolution of Animals, Polish Academy of Sciences, ul. ?w. Sebastiana 9, 31049 Kraków, Poland |
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| Abstract: | The dietary habits of the Oligocene fish Scopeloides glarisianus (Agassiz) are presented on the basis of functional morphology, in comparison with their recent relatives (Gonostoma spp.) as well as fossil materials from localities in Poland (Lubenia, B?a?ova), Ukraine (Ljubizhnja), the Czech Republic (Lou?ka), and the northern Caucasus in Russia and Abkhazia. Analogous to the recent relatives from the genus Gonostoma, S. glarisianus fed on crustaceans such as ostracods and copepods, the larger specimens preying on small fishes. Fishes remains preserved within the alimentary canal region are usually represented by smaller individuals of the same species; accordingly, the cannibalistic behaviour of the adult S. glarisianus is thereby documented. The remains of the alimentary canal and the peritoneum are identified. |
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