Can an eel be a flatfish? Observations on enigmatic asymmetrical heterenchelyids from the Guinea coast of West Africa
| Autor: | Christopher M. Martinez, Melanie L. J. Stiassny |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
0301 basic medicine
biology Dentition Ecology Aquatic Science Lateral side biology.organism_classification Heterenchelyidae West africa 03 medical and health sciences 030104 developmental biology Flatfish Sinistral and dextral Morphological asymmetry parasitic diseases Pythonichthys Ecology Evolution Behavior and Systematics |
| Zdroj: | Journal of Fish Biology. 91:673-678 |
| ISSN: | 0022-1112 |
| DOI: | 10.1111/jfb.13365 |
| Popis: | Morphological asymmetry is described in the heterenchelyid mud eel Pythonichthys cf. macrurus from inshore coastal waters of Guinea, West Africa. The intensity of asymmetry differs between two examined specimens, with the more extreme case exhibiting strong asymmetry in both external and internal features, including unilateral depigmentation, reductive degeneration and embedding of a blind-side eye, skewed jaws with reduced dentition and tooth loss. The extent and nature of asymmetry suggests that this individual probably lived primarily on its left lateral side, not unlike sinistral pleuronectiform flatfishes. |
| Databáze: | OpenAIRE |
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