Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Actinopteri (ray-finned fishes) > Siluriformes
(Catfishes) > Amphiliidae
(Loach catfishes) > Amphiliinae
Etymology: Amphilius: Greek, amphi = on both sides + Greek, leios = fat; pedunculus: The diminutive of pes, pedunculus, a noun, refers to the distinctively short and deep caudal peduncle of this species (Ref. 103388)
Environment: milieu / climate zone / depth range / distribution range
Freshwater; demersal; depth range - m (Ref. ), usually - m (Ref. ). Tropical; 0°C -
Africa: Malagarazi River drainage (Ref. 103388), Luiche River (Ref. 103388), Lake Rukwa basin (Ref. 103388) and upper Great Ruaha River system (Ref. 103388).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 11.9 cm SL male/unsexed; (Ref. 103388)
Morphology | Morphometrics
soft rays: 8 - 10. Diagnosis: Amphilius pedunculus is diagnosed from A. jacksonii, A. ruziziensis and A. lujani by its deeper caudal peduncle, caudal peduncle depth 9.9-12.3% of standard length vs. 4.8-9.5%, and from A. ruziziensis and A. frieli by its wider interorbital width, 28.1-35.8% of head length vs. 23.4-27.7% (Ref. 103388). It is distinguished from A. crassus by its longer caudal peduncle, caudal peduncle length 16.0-18.8% of standard length vs. 13.3-15.5, and shorter dorsal-fin insertion to adipose-fin insertion length, 37.5-41.7% of standard length vs. 42.2-44.6%; it is further diagnosed from A. frieli by having fewer total gill rakers on the first gill arch, 7-9, rarely 6 or 10 vs. 10-11, rarely 9 or 12 (Ref. 103388).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Thomson, A.W., L.M. Page and S.A. Hilber, 2015. Revision of the Amphilius jacksonii complex (Siluriformes: Amphiliidae), with the descriptions of five new species. Zootaxa 3986(1):61-87. (Ref. 103388)
IUCN Red List Status (Ref. 124695)
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=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.0 ±0.3 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Moderate vulnerability (38 of 100) .