Grammonus diagrammus (Heller & Snodgrass, 1903)
Purple brotula
photo by Allen, G.R.

Family:  Bythitidae (Livebearing brotulas)
Max. size:  20.3 cm TL (male/unsexed)
Environment:  reef-associated; marine; depth range 6 - 18 m
Distribution:  Eastern Pacific: San Clemente Island in south California, USA to Panama and the Galapagos Islands.
Diagnosis:  Dorsal spines (total): 0-0; Dorsal soft rays (total): 95-115; Anal spines: 0-0; Anal soft rays: 75-91; Vertebrae: 60-63. Branchiostegal rays: 8 (Ref. 36488).
Biology:  Uncommon species (Ref. 34024). Inhabits rocky areas of shallow waters (Ref. 2850). Hides in dark caverns and crevices during the day, active at night (Ref. 2850). Gives birth to live young (Ref. 28023).
IUCN Red List Status: Least Concern (LC); Date assessed: 29 April 2008 Ref. (130435)
Threat to humans:  harmless


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