Actinopteri (ray-finned fishes) > Cypriniformes
(Carps) > Gastromyzontidae
Etymology: serrilineata: From the Latin serra (saw) and lineatus (striped) a reference to the saw-toothed midlateral stripe. More on author: Kottelat.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic; pH range: 8.1 - ?. Tropical; 16°C - ? (Ref. 95066)
Asia: Mekong at Nam Ou and Nam Tha basins in northern Laos; Nanlahe River, Mekong Basin in Yunnan, China.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 5.8 cm SL male/unsexed; (Ref. 36949)
Morphology | Morphometrics
Caudal peduncle 1.2-1.4 times longer than deep, depth 8.6-9.7 %SL; anus closer to posterior extremity of pelvic-fin base than caudal-fin origin; 18-30 dark brown bars on body, their width conspicuously smaller than eye diameter, very irregularly shaped and spaced, more or less connected along lateral line to form a saw-toothed stripe; juveniles with 5-6 broad black bars on body and a large black blotch on anterior half of caudal fin; 5 large saddles on back; pelvic and pectoral fins yellow in life, with a series of dark brown marks; 2-3 irregular row of brown spots on dorsal fin, 2 irregular black bars or rows of spots on caudal fin; 15-16 branched pectoral-fin rays; 8 branched pelvic-fin rays (Ref. 36949).
Collected in swift creeks under forest cover (Ref. 36949). Also recorded from a stream with clear water ((16 °C; pH 8.1; 250 μs/cm; measured on 1 January 2011 at 11:00 am) that flowed over boulders and rocks with moderate to fast current. Found syntopic with nemacheilids Schistura macrocephalus and Pteronemacheilus meridionalis, the snakehead Channa gachua, and cyprinids such as Barilius pulchellus, Devario chrysotaeniatus, Poropuntius huangchuchieni, and Scaphiodonichthys acanthopterus (Ref. 95066).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Kottelat, M., 2000. Diagnosis of a new genus and 64 new species of fishes from Laos (Teleostei: Cyprinidae, Balitoridae, Bagridae, Syngnathidae, Chaudhuriidae and Tetraodontidae). J. South Asian Nat. Hist. 5(1):37-82. (Ref. 36949)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
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=0.00447 (0.00180 - 0.01112), b=3.14 (2.92 - 3.36), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 2.7 ±0.2 se; based on size and trophs of closest relatives
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .