Actinopteri (ray-finned fishes) > Anabantiformes
(Gouramies, snakeheads) > Badidae
Etymology: Badis: 'badis' is presumably a Bengali local name, possibly derived from 'bhedo' or 'bheda', but it lacks a proper reference. Probably incorrect etymology (J. Müller, pers. comm., April 2021, after information from native speakers); pyema: Specific name from the local name 'Nga-pyema' recorded at Putao; Noun in apposition. More on authors: Kullander & Britz.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic; depth range - m (Ref. ), usually - m (Ref. ). Tropical; 0°C -
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 4.1 cm SL male/unsexed; (Ref. 46238)
Morphology | Morphometrics
(total): 16 - 17;
soft rays: 6 - 8;
Vertebrae: 28 - 29. Body extremely slender, body depth 26.3-32.7% SL. Dentary pores 1-2; infraorbital pores 1-2; lachrymal pores 2; extrascapular pore 1. Caudal fin base with a prominent dark spot at the center, surrounded by a light ring. Differs from B. corycaeus in having a slender body, depth (versus 32.5-39.4%SL); more lateral line scales, 27-28 (versus 25-26); more vertebrae, 28-29 (versus 26-29); and color pattern where males are overall light with scattered black spots on each scale on sides. No dark blotch on cleithrum, opercular margin, nor on dorsolateral side of caudal peduncle (Ref. 46238).
Collected from a small, fast flowing stream, about 3 m wide on the average, relatively shallow, less than 0,5 m deep, with occasional riffles; water clear and colorless; the bottom with rock, gravel or sand. This stream ran between forested hills, with grass and shrub close to the margin, providing up to about 75% shadow, but no water vegetation (Ref. 46238).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Kullander, S.O. and R. Britz, 2002. Revision of the family Badidae (Teleostei: Perciformes), with description of a new genus and ten new species. Ichthyol. Explor. Freshwat. 13(4):295-372. (Ref. 46238)
IUCN Red List Status (Ref. 124695)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass 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=0.00537 (0.00222 - 0.01301), b=3.05 (2.84 - 3.26), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.2 ±0.4 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): Low, minimum population doubling time 4.5 - 14 years (Assuming Fec<100).
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .