Ptereleotris brachyptera Randall & Suzuki, 2008

Lowfin dartfish
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Ptereleotris brachyptera   AquaMaps   Data sources: GBIF OBIS
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Image of Ptereleotris brachyptera (Lowfin dartfish)
Ptereleotris brachyptera
Male picture by Randall, J.E.

Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

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);  brachyptera: Named for the very low first dorsal fin.

Environment: milieu / climate zone / depth range / distribution range Ecology

Marine; reef-associated; depth range 20 - 38 m (Ref. 75638).   Tropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Western Central Pacific: Palau, Brunei and Marshall Islands.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 5.4 cm SL male/unsexed; (Ref. 75638); 5.8 cm SL (female)

Short description Morphology | Morphometrics

Dorsal spines (total): 7; Dorsal soft rays (total): 23-25; Anal spines: 1; Anal soft rays: 22 - 24. This species is characterized by the following features: D VI + I, 23-25; A I, 22-24; pectoral rays 22 or 23; cycloid scales, nonimbricate, 135-139 oblique rows in longitudinal series on body; gill rakers 6-7 + 18-19; body depth 6.95-7.6 in SL; head length 4.2-4.6 in SL; chin with a low median fleshy ridge, narrowing to a thin convoluted ridge; first dorsal fin very low, the spines strongly curved posteriorly, only the last with a short free tip; fifth dorsal spine longest, 2.05-2.7 HL; caudal fin slightly rounded to slightly emarginate with rounded lobes, 4.3-4.65 in SL; pelvic fins 4.45-4.65 in SL; alcohol preserved color pale tan, with a dusky zone between upper lip and orbit; when fresh color is pale lavender-gray dorsally, becoming white on abdomen and cheek, 2 broad bluish gray stripes, a dorsal one posterior to middle of first dorsal fin, and a ventral one above anal fin, separated by a narrow zone of pale lavender-gray; median fins are pale lavender-blue basally, translucent distally; pelvic fins mainly pale blue; pectoral fins translucent, with a narrow red bar at base (Ref. 75638).

Biology     Glossary (e.g. epibenthic)

Collected from lagoons on silty sand and rubble substrata (Ref. 75638).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator : Randall, John E. | Collaborators

Randall, J.E. and T. Suzuki, 2008. Three new species of dartfishes of the gobioid genus Ptereleotris from the western Pacific. Aqua Int. J. Ichthyol. 14(2):89-100. (Ref. 75638)

IUCN Red List Status (Ref. 119314)

  Data deficient (DD) ; Date assessed: 12 March 2015

CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

FAO(Publication : search) | FishSource |

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Internet sources

Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | SeaLifeBase | Tree of Life | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates of some properties based on models

Preferred temperature (Ref. 115969): 28 - 28.7, mean 28.2 (based on 38 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 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), in cm Total Length, based on all LWR estimates for this body shape (Ref. 93245).
Trophic Level (Ref. 69278):  3.3   ±0.4 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278):  High, minimum population doubling time less than 15 months ().
Vulnerability (Ref. 59153):  Low vulnerability (10 of 100) .