Gunnellichthys monostigma Smith, 1958
Onespot wormfish
Gunnellichthys monostigma
photo by Randall, J.E.

 Family:  Microdesmidae (Wormfishes), subfamily: Microdesminae
 Max. size:  15 cm SL (male/unsexed)
 Environment:  reef-associated; 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:   (Ref. 96402)
 Threat to humans:  harmless
 Country info:   
 

 Entered by: Luna, Susan M. - 23.01.95
 Modified by: Bailly, Nicolas - 02.07.13
 Checked by: Garilao, Cristina V. - 20.12.96

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