Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopteri (ray-finned fishes) > Cypriniformes
(Carps) > Gastromyzontidae
Etymology: diardi: Named for Diard, naturalist-explorer of Indo-China and Indonesia. More on author: Roberts.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; demersal. Tropical
Asia: Se Kong watershed, the southern-most large tributary of Mekong in Laos.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 7.2 cm SL male/unsexed; (Ref. 38650)
Morphology | Morphometrics
Vertebrae: 35 - 36. Differs from members of the genus by the following combination of characters: absence of dark stripes on body; absence of bold concentric bands on posterior part of paired fins; pelvic fin not reaching anal-fin origin; general appearance robust, body width at dorsal-fin origin 24.2-28.0% SL; caudal peduncle depth 10.7-11.2% SL; caudal peduncle length 0.8-0.9 times in its depth; predorsal body length 51.3-53.7% SL; pelvic-fin origin in front of dorsal-fin origin; absence of cavity around mouth; skin-fold between oropectoral membrane and ventral surface of head running from pectoral-fin origin to second rostral barbel; tubercles on dorsal part of head concentrated on lateral part of snout; absence of large tubercles on branched pectoral-fin rays 15-21; and 60-70 lateral line scales (Ref. 40433).
Inhabits hill streams. Occurs sympatrically with S. speciosa.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Roberts, T.R., 1998. Systematic revision of the balitorid loach genus Sewellia of Vietnam and Laos, with diagnoses of four new species. Raffles Bull. Zool. 46(2):271-288. (Ref. 38650)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00447 (0.00172 - 0.01158), b=3.14 (2.91 - 3.37), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.6 ±0.4 se; based on size and trophs of closest relatives
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .