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The blue-spotted jawfish have an electric-blue spotting over a yellow or orange body with an elegant yellow dorsal fin. They have large eyes that make them look as "alien". [3] The males have stark white in their anterior halves. The females and the non-courting males are dark brown and have larger blue spots.
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.
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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Some species gather up fertilized eggs in their mouth and keep them safe until they hatch, a process called mouthbrooding.. Cichlid.In addition to being mouthbrooders, some species continue to protect their young after they hatch, calling out to them when there is danger, and letting them swim back into their mouth to hold them safely away.
Lonchopisthus ancistrus Smith-Vaniz & Walsh, 2017 (Hook jawfish) Lonchopisthus higmani Mead, 1959; Lonchopisthus lemur (G. S. Myers, 1935) Lonchopisthus micrognathus (Poey, 1860) (Swordtail jawfish) Lonchopisthus sinuscalifornicus Castro-Aguirre & Villavicencio-Garayzar, 1988 (Longtailed jawfish)
The Atlantic goliath grouper was historically referred to as the "jewfish", and there are several theories as to the name's origin. A 1996 review of the term's history from its first recorded usage in 1697 concluded that the species' physical characteristics were frequently connected to "mainstay caricatures of anti-Semitic beliefs", whereas the interpretation that the fish was regarded as ...