Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Actinopteri (ray-finned fishes) > Cypriniformes
(Carps) > Cyprinidae
(Minnows or carps) > Smiliogastrinae
Etymology: Pethia: Pethia is the generic vernacular name for small cyprinids in Sinhala.; rutila: From the Latin adjective 'rutila', meaning reddish, in reference to the reddish coloration of this fish..
Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic. Tropical
Asia: Aivapui River and Keisalam River (Karnaphuli River drainage) in Mizoram, India.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 4.5 cm SL male/unsexed; (Ref. 96523)
Morphology | Morphometrics
soft rays: 7 - 8;
Vertebrae: 31 - 32. Pethia rutila can be distinguished from all species of Pethia occurring in the Ganges-Brahmaputra drainage, Kaladan drainage and the Chindwin-Irrawaddy drainage, except P. expletiforis, P. macrogramma, P. stoliczkana and P. tiantian, in having a complete lateral line. It differs from all its congeners by the combination of the following characters: a black caudal-peduncle blotch extending over scales 16-18 or 17-19 of the lateral line centered above the insertion of the last anal-fin ray; an inconspicuous black humeral spot on the scale row below the 3rd and 4th lateral-line scales; 8 or 9 predorsal scales; 4½ scales between dorsal-fin origin and lateral line, and 3½ scales between lateral line and pelvic-fin origin (Ref. 96523).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Lalramliana, J.D.M. Knight and Z. Laltlanhlua, 2014. Pethia rutila (Teleostei: Cyprinidae), a new species from Mizoram, Northeast India. Zootaxa 3827(3):366-374. (Ref. 96523)
IUCN Red List Status (Ref. 125652)
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=0.01096 (0.00518 - 0.02319), b=3.00 (2.83 - 3.17), in cm total length, based on LWR estimates for this Subfamily-BS (Ref. 93245
Trophic level (Ref. 69278
): 2.7 ±0.2 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .
Climate Vulnerability (Ref. 125649
): (0 of 100) .