[2] The blue-spotted jawfish was first discovered in the Tropical Eastern Pacific by Gerald Allen and David R. Robertson in 1991.

They are found in cold water at deeper depth of the ocean in sandy rubbles and reef areas.

Unlike the Opistognathus aurifrons, the blue-spotted jawfish only spend time out and above their burrows during the warm summer season.

Edit: Brookynella is easily treated in a quarantine tank using malachite green in combination with formalin.

The so-called "Blue spot jawfish disease" is almost always damage to the fish caused by; rough handling, coarse or abrasive substrate, being kept on bare glass, or, from being kept at above 21c.

In addition, males display behaviorally and color-wise in the summer months by becoming bright white, dashing 3 to 4 feet (0.91 to 1.22 m) above their burrow, trying to attract the females.

[2] The specific name honours Richard H. Rosenblatt (1930-2014), an ichthyologist at the Scripps Institution of Oceanography, who made many contributions to the study of the fishes of the eastern Pacific.