Goatsbeard brotula (Brotula multibarbata), is a species of cusk-eels in the genus Brotula.
Dorsal spines (total): 0; Dorsal soft rays (total): 109-139; Anal spines: 0; Anal soft rays: 80 - 106. In addition to meristic counts, Brotula multibarbata differs from Brotula townsendi by possessing a larger eye (width>interorbital space) and having slightly different coloration (dark brown with a submarginal black band and narrow white border on the dorsal and anal fins versus greenish to orange brown with orange-bordered dorsal and anal fins).
Benthopelagic on shelf and upper slope. Larvae found in the epipelagic far offshore. Found in shallow lagoon and seaward reefs and occurs at depths of at least 220 m. Adults (30-90 cm) move to depths of 100-650 m. A nocturnal species, rarely seen for it lives in caves and crevices during the day and periodically emerges from cover at night.
Feed on crustaceans, mainly crabs, and fishes.
Oviparous, with oval pelagic eggs floating in a gelatinous mass.
This cryptic, demersal species inhabits the crevices of rocks, caves, shallow lagoons, seaward reefs on continental shelves (Nielsen et al. 1999, Mundy 2005, Fricke et al. 2014, Psomadakis et al. 2015). Adults typically occur on the continental shelf and upper slope, while juveniles are found in the epipelagic zone far offshore (Nielsen et al. 1999). Its diet consists of crustaceans and fishes. It is a nocturnal species that is rarely seen. It has an oviparous life cycle and produces oval pelagic eggs that float in a gelatinous mass (Breder and Rosen 1966). The maximum total length is 100 cm (Psomadakis et al. 2015).
There are no known major threats.