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: Parioglossus: Greek, pareia = jaw + Greek, glossa = tongue (Ref. 45335); multiradiatus: Named multiradiatus (Latin meaning having many rays) referting to the second dorsal, anal and pectoral fin rays counts, which is higher than in several related species of the genus.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; brackish; benthopelagic. Tropical
Western Indian Ocean: probably endemic of Seychelles, Mahé Island (Ref. 57749).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 3.5 cm SL male/unsexed; (Ref. 57749)
Morphology | Morphometrics
soft rays: 17 - 18. Elongated body, slighthly laterally compressed. Dorsal and ventral profiles straight. Short snout. No teeth on vomer, nor on palatins. Superior jaw shows two raws of conical teeth. Vertical branchial opening, extending from superior insertion of the pectoral fin to its inferior insertion. Belly and prepelvic area with scales. Base of the pectoral without scales or only with a few ones. Pectorals pointed. Caudal is truncate for females and truncate to emarginate for males. Head and upper part of the body greenish-yellow, translucid and shiny. A wide lateral black stripe from the anterior edge of the eye, along the flanks to the posterior edge of the caudal peduncle. Black vertical mark on the caudal fin connected with the lateral stripe. Abdomen pinkish-white. Lower part of the cheek and operculum redish. Hyalin fins. Anal with black and white margins. Hyalin anal for females.Black and translucid for males (Ref. 57749).
Found in the lower part of rivers of Mahé Island, in tidal and freshwater area (Ref. 54851). Found in coastal area, mangrove and brackish waters but also in freshwaters in the lower part of the rivers close to the surface. Feed on zooplankton (Ref. 57749).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Keith, P., P. Bosc and P. Valade, 2004. A new species of Parioglossus (Gobioidei: Ptereleotridae) from Seychelles Islands. Cybium 28(4):341-344. (Ref. 54851)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 118484)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates 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), in cm total length, based on all LWR estimates for this body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.2 ±0.4 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months ().
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .