Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Microdesmidae
(Wormfishes) > Ptereleotrinae
Etymology: Ptereleotris: Greek, pteron = wing, fin + The name of a Nile fish, eleotris (Ref. 45335).
Environment / Climate / Range
Marine; reef-associated; depth range 2 - 31 m (Ref. 1602), usually 2 - 4 m (Ref. 1602). Tropical; 22°C - 28°C (Ref. 27115); 30°N - 30°S
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 12.0 cm SL male/unsexed; (Ref. 48637)
soft rays: 25 - 28;
Vertebrae: 26. Yellowish to greenish gray in color; lower half of eye to ventral of chin nearly enclosed by a broad blue-edged dark red to purple area; opercle with 2 diagonal bright blue bands; pectoral fin base with an orange-red bar broadly bordered with bright blue. Chin barbel followed by a median longitudinal fold. Fins yellowish; 2nd dorsal a median longitudinal row of blue spots.
Indo-Pacific: Red Sea and islands in the western Indin Ocean (Ref. 528) to the Line and Marquesas Islands, north to the Ryukyu Islands, south to the southern Great Barrier Reef; Mariana and Marshall Islands in Micronesia.
This schooling species inhabits exposed seaward reefs in relatively shallow water, over hard bottoms. Usually many individuals occupy the same refuge. Found to be subjected to strong currents, where in small to large aggregations (Ref. 48637). Feeds on zooplanktons (Ref. 89972).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Randall, J.E. and D.F. Hoese, 1985. Revision of the Indo-Pacific dartfishes, genus Ptereleotris (Perciformes: Gobioidei). Indo-Pac. Fish. (7):36 p. (Ref. 528)
IUCN Red List Status (Ref. 96402)
CITES (Ref. 94142)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), based on all LWR estimates for this body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.4 ±0.45 se; Based on food items.
Resilience (Ref. 69278
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .