Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Microdesmidae
(Wormfishes) > Ptereleotrinae
Etymology: Nemateleotris: Greek, nema, -atos = filament + The name of a Nile fish, eleotris (Ref. 45335). More on author: Fowler.
Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated; depth range 6 - 70 m (Ref. 27115), usually 6 - 28 m (Ref. 9360). Tropical; 22°C - 28°C (Ref. 27115); 31°N - 28°S, 32°E - 128°W
Indo-Pacific: East Africa to the Hawaiian, Marquesan and Pitcairn islands, north to the Ryukyu Islands, south to New Caledonia and the Austral Islands; throughout Micronesia.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 9.0 cm TL male/unsexed; (Ref. 2272)
Inhabits upper portions of outer reef slopes (Ref. 1602). Benthopelagic (Ref. 58302). Hovers above the bottom, facing the current to feed on zooplankton, copepods, and crustacean larvae. Several individuals may share the same hole (especially juveniles). Has a habit of flicking its pennant-like first dorsal fin back and forth (Ref. 1602, 48637). Minimum depth reported from Ref. 9360. Monogamous (Ref. 52884).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Monogamous mating is observed as both obligate and social (Ref. 52884).
Randall, J.E., G.R. Allen and R.C. Steene, 1990. Fishes of the Great Barrier Reef and Coral Sea. University of Hawaii Press, Honolulu, Hawaii. 506 p. (Ref. 2334)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 118484)
Threat to humans
Fisheries: of no interest; aquarium: commercial
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 24.7 - 28.8, mean 27.6 °C (based on 554 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5625 [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), in cm total length, based on all LWR estimates for this body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.1 ±0.30 se; based on food items.
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .