Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Cypriniformes
(Carps) > Cyprinidae
(Minnows or carps) > Barbinae
Etymology: Puntius: Lantin, punctum = point, the point of the sword (Ref. 45335); rhombeus: From the Latin rhombeus (rhombic) (Ref. 36949). More on author: Kottelat.
Environment / Climate / Range
Freshwater; benthopelagic. Tropical
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 6.5 cm SL male/unsexed; (Ref. 43281)
Morphology | Morphometrics
Two pairs of barbels; dorsal profile more or less straight; a small black spot immediately below dorsal-fin origin, one on the middle of caudal peduncle at caudal-fin base; a faint longitudinally elongate blotch immediately behind upper extremity of gill opening, followed along body midline by a dark spot below dorsal and one or two above anal fin; black crescent at the base of scales; a narrow black distal margin on anal fin in large individuals (Ref. 36949).
Asia: Mekong basin, Chao Phraya and Meklong basins and peninsular Thailand north of isthmus of Kra.
Inhabits hill streams with clear water (Ref. 43281). Reaches up to at least 6.5 cm SL (Ref. 43281).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Kottelat, M., 2001. Fishes of Laos. WHT Publications Ltd., Colombo 5, Sri Lanka. 198 p. (Ref. 43281)
IUCN Red List Status (Ref. 96402)
CITES (Ref. 94142)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningFecundityEggsEgg development
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=0.01349 (0.00644 - 0.02828), b=2.96 (2.79 - 3.13), based on LWR estimates for this Subfamily-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 2.9 ±0.1 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (15 of 100) .