Gunnellichthys monostigma Smith, 1958 Onespot wormfish |
photo by
Randall, J.E. |
Family: | Microdesmidae (Wormfishes), subfamily: Microdesminae | |||
Max. size: | 15 cm SL (male/unsexed) | |||
Environment: | reef-associated; marine; depth range 1 - 20 m | |||
Distribution: | Indo-Pacific: East Africa to Marquesan and Society islands, north to Ryukyu Islands, south to the southern Great Barrier Reef. Record from Mauritius (Ref. 9408) requires verification (Ref. 33390). | |||
Diagnosis: | Dorsal spines (total): 21-22; Dorsal soft rays (total): 39-42; Anal spines: 0-0; Anal soft rays: 38-43. Description: Characterized by generally pale greyish body color; presence of small black spot posteriorly on opercle; head with iridescent blue stripe mid-dorsally, and sometimes with yellow to orange lateral stripe; head without scales; origin of dorsal fin slightly anterior to level of upper end of gill opening; slightly rounded to rhomboid caudal fin; depth of body 10-13 in SL (Ref. 90102). | |||
Biology: | Inhabits coastal sand slopes, subject to strong currents (Ref. 48637). Found over open sandy areas, sometimes with sparse plant growth. Solitary. Feeds on small benthic and pelagic crustaceans (Ref. 1602). | |||
IUCN Red List Status: | Least Concern (LC); Date assessed: 12 March 2015 Ref. (130435) | |||
Threat to humans: | harmless |