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Overview |
Main identification features
- lateral linecontinuous
- dorsal and anal finscontinuous with c
- preopercle - no spine
- pelvic = 1 threadpectoral base - long bones
- scales: head none, body none/few
SACCOGASTER
DEEP-WATER BROTULAS
No forward-pointing spine on head; eye small; top jaw bone vertically expanded at rear; teeth on sides of roof of mouth; 0-6 gill rakers on first gill arch; scales absent from head and reduced or absent from body; no spines at lower corner of preoperculum, spine at upper corner of operculum; 8 branchiostegal rays; pectoral fin supported by long radial bones; dorsal and anal fins broadly joined to tail fin; pectoral fin 12-23 rays; pelvic fin is a single thread that originates under base of pectoral fin; anal fin originates on rear half of body; male with a stalked sex organ.
An Indo-Pacific and west Atlantic genus with eight species, one of them endemic to our region.
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References |
- Cohen, D.M. and Nielsen, J.G., 1972., A review of the viviparous ophidioid fishes of the genus Saccogaster., Proc. Biol. Soc. Wash., 85:445-468.
- Jimenez-Prado, P., Béarez, P., 2004., Peces marinos del Ecuador continental / Marine fishes of continental Ecuador., SIMBIOE/NAZCA/IFEA tomo 1 y 2.
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Acknowledgements |
I thank Ashley MacDonald and John Pickering, University of Georgia, for technical support in building this page.
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Updated: 2024-03-29 13:57:30 gmt
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