Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) >
Cypriniformes (Carps) >
Danionidae (Danios) > Rasborinae
Etymology: Rasbora: Rasbora, an Indian word for a fish, also used in Malay peninsula; naggsi: Named for Fred Naggs (Natural History Museum, London) for his support of biodivesity exploration and research in Sri Lanka.
Eponymy: Professor Fred Naggs is a malacologist who is Biodiversity & Conservation Officer in the Mollusca Research Group, Invertebrates section of the Life Sciences Department of the Natural History Museum, London. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic. Tropical
Asia: Sri Lanka.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 7.7 cm SL male/unsexed; (Ref. 84057)
Short description
Identification keys | Morphology | Morphometrics
Vertebrae: 38. Rasbora naggsi is distinguished from all its congeners from India and Sri Lanka by a combination of the following characters: axial stripe anteriorly narrow, faint in preserved specimens; mouth terminal; symphysial knob and premaxillary lateral process absent;
½ 4/ 1/ 1 ½ scales in transverse line on body; post-dorsal length 43.8-46.5 % SL; and body depth 18.1-21.7 % SL (Ref. 84057).
Body shape (shape guide): elongated.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Silva, A., K. Maduwage and R. Pethiyagoda, 2010. A review of the genus Rasbora in Sri Lanka, with description of two new species (Teleostei: Cyprinidae). Ichthyol. Explor. Freshwat. 21(1):27-50. (Ref. 84057)
IUCN Red List Status (Ref. 130435: Version 2025-2)
Threat to humans
Harmless
Human uses
Fisheries: of potential interest
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