Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
() > Siluriformes
(Catfish) > Kryptoglanidae
Etymology: Kryptoglanis: Named for its cryptic habitat; Latin, ‘crypta’, a vault or tunnel; ‘glanis’, a catfish.; shajii: Named for C.P. Shaji, a fish taxonomist who significantly contributed to the documentation of freshwater fish diversity of the Kerala region of Western Ghats by the Kerala Forest Research Institute (KFRI Peechi).
Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic. Tropical
Asia: Western Ghats in Kerala, India.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 5.9 cm SL male/unsexed; (Ref. 86813); 5.4 cm SL (female)
Morphology | Morphometrics
This species is distinguished from other siluriform species by the following set of characters: viz. no dorsal fin; anal fin with long base and completely confluent with caudal fin; 70-74 total number of fin rays in the anal and caudal fins; subcutaneous eyes; upwardly directed mouth with distinctly projecting lower jaw; fan-like pectoral fin, no spines; 4 pairs of barbels (Ref. 86813).
Occurs in subterranean streams. Observed to inhabit an open water body, over the paddy fields and water sources feeding paddy fields. Found mainly hiding between submerged vegetation present on the sides of the water body (Ref. 92081). Specimens collected from 5.5-m-deep well containing water where it is situated on the slope of a hilly terrain and receives water from groundwater springs, subterranean. Female individuals (4.95-5.44 cm SL) collected had distended bellies containing mature eggs. In the laboratory, the fishes thrive on Artemia nauplii and minced earthworms (Ref. 86813).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Vincent, M. and J. Thomas, 2011. Kryptoglanis shajii, an enigmatic subterranean-spring catfish (Siluriformes, Incertae sedis) from Kerala, India. Ichthyol. Res. 58(2):161-165. (Ref. 86813)
IUCN Red List Status (Ref. 115185)
CITES (Ref. 115941)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 1.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm Total Length, based on all LWR estimates for this body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.2 ±0.5 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
): High, minimum population doubling time less than 15 months ().
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .