Systematics and biology of the deep-sea fish family Gibberichthyidae, a senior synonym of the family Kasidoroidae
De Sylva, D.P.; Eschmeyer, W.N. (1977). Systematics and biology of the deep-sea fish family Gibberichthyidae, a senior synonym of the family Kasidoroidae. Proc. Calif. Acad. Sci. Fourth series (41)(6): 215-231
In: Proceedings of the California Academy of Sciences. California Academy of Sciences: San Francisco. ISSN 0068-547X, more
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| Authors | | Top |
- De Sylva, D.P.
- Eschmeyer, W.N.
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| Abstract |
The fish family Kasidoroidae Robins and de Sylva (1965) is shown to be based on Atlantic specimens of the unusual prejuvenile stage of the xenoberyciform genus Gibberichthys Parr (1933). Kasidoronedom Robins and de Sylva (1965) is treated as the prejuvenile stage of Gibberichthys pumilus Parr (1933). Kasidoron latifrons Thorp (1969). described from a prejuvenile specimen from the western Indian Ocean, is confirmed to be a separate species, G. latifrons; it is now known from the Indian Ocean and the western and southwestern parts of the Pacific Ocean. Ontogenetic changes from the larval stage to the adult are discussed and illustrated for G. pumilus, particularly the development and loss of the pelvic appendage—a modified third pelvic fin ray—and the development of crests on the head. The prejuvenile stage is found in epipelagic waters, and adults apparently occur in the lower mesopelagic and perhaps upper bathypelagic levels; adults probably do not undergo daily vertical migration. Additional notes on biology are included. |
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