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They live in colonies of up to several hundred fish, with a minimal spacing of 1 to 3 m (3.3 to 9.8 ft) between individuals. They cover their burrow entrance at dusk and rebuild the opening every morning. Unlike the Opistognathus aurifrons, the blue-spotted jawfish only spend time out and above their burrows during the warm summer season. [2]
Opistognathus castelnaui Bleeker, 1860 (Castelnau's jawfish) Opistognathus crassus Smith-Vaniz, 2010 (Stout jawfish) [2] Opistognathus cryos Su & Ho 2024; Opistognathus cuvierii Valenciennes, 1836 (Bar-tail jawfish) Opistognathus cyanospilotus Smith-Vaniz, 2009 (Blue-blotch jawfish) Opistognathus darwiniensis W. J. Macleay, 1878 (Darwin jawfish)
With the exception of the blue-spotted jawfish O. rosenblatti, [2] Jawfishes are mouthbrooders, meaning their eggs hatch in their mouths, where the newborn fry are protected from predators. The gestation period varies between species. Gold-specs jawfish (Opistognathus randalli) typically keep their clutch of eggs for 8–10 days before hatching.
These Red Sea fish are listed as Reef-associated by Fishbase: . Acanthuridae. Acanthurus gahhm, Black surgeonfish; Acanthurus mata, Elongate surgeonfish; Acanthurus nigrofuscus, Brown surgeonfish
The yellowhead jawfish (Opistognathus aurifrons) is a species of jawfish native to coral reefs in the Caribbean Sea. It is found at depths of from 3 to 40 metres (9.8 to 131.2 ft). The head and upper body are a light, but brilliant, yellow color slowly fading to a pearlescent blue hue. It can reach a length of 10 centimetres (3.9 in) TL. [2]
Inside the gland cells, blue-green light is produced via the same chemical reaction found in other stomiids, which is then absorbed by a protein that fluoresces in a broad red band. This light is then reflected out through the photophore aperture, where it passes through a brown filter, yielding a far-red light with a maximum absorbance at 708 ...
Stalix dicra Smith-Vaniz, 1989 (Forked jawfish) Stalix eremia Smith-Vaniz, 1989 (Solitary jawfish) Stalix flavida Smith-Vaniz, 1989; Stalix histrio D. S. Jordan & Snyder, 1902 (Harlequin jawfish) Stalix immaculata C. Y. Xu & H. Z. Zhan, 1980; Stalix moenensis (Popta, 1922) (Muna jawfish) Stalix novikovi Prokofiev, 2015 [2] Stalix omanensis ...
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