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Amphilius ruziziensis Thomson & Page, 2015

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Rwanda country information

Common names: [No common name]
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments: Type locality of the holotype of Amphilius ruziziensis: 'Rwanda, Lufiro River, upper reaches of Matchuza, Ruzizi River drainage, ca. 2°44'00"S, 29°02'99"E' (Ref. 103388). Known from Rusizi River drainage (Ref. 103388).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/rw.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Thomson, A.W., L.M. Page and S.A. Hilber, 2015
National Database:

Common names from other countries

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Siluriformes (Catfishes) > Amphiliidae (Loach catfishes) > Amphiliinae
Etymology: Amphilius: Greek, amphi = on both sides + Greek, leios = fat;  ruziziensis: Named for the Ruzizi River drainage in eastern Rwanda and Burundi, where type specimens of this species were collected and the species is primarily distributed (Ref. 103388).

Environment: milieu / climate zone / depth range / distribution range Ecology

Freshwater; demersal.   Tropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Africa: Ruzizi River drainage (Ref. 103388) and northeastern tributaries of Lake Tanganyika in Burundi (Ref. 103388).

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 12.1 cm SL male/unsexed; (Ref. 103388)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 7; Anal spines: 0; Anal soft rays: 7 - 10. Diagnosis: Amphilius ruziziensis is diagnosed from A. pedunculus, A. frieli, and A. crassus by its more slender caudal peduncle, caudal peduncle depth 8.6-9.5% of standard length vs. 9.7-12.3%, and from A. jacksonii, A. pedunculus, A. crassus, and A. lujani by its narrower interorbital width, 23.4-25.1% of head length vs. 26.7-35.8% (Ref. 103388). It is further diagnosed from A. frieli, A. crassus, and A. lujani by its more slender body, body depth at anus 11.1-12.9% of standard length vs. 13.5-17.4% (Ref. 103388). Amphilius ruziziensis is further diagnosed from A. frieli by having fewer branchiostegal rays, 6-7 vs. 8-9, fewer total gill rakers on the first gill arch, 6-8, rarely 5 or 9 vs. 10-11, rarely 9 or 12, and a longer caudal peduncle, caydal peduncle length 18.7-20.3% of standard length vs. 14.4-16.4%; it is further diagnosed from A. crassus by a longer caudal peduncle, caudal peduncle length 18.7-20.3% of standard length vs. 13.3-15.5%, and shorter dorsal-fin insertion to adipose-fin insertion length, 38.2-41.5% of standard length vs. 42.2-44.6%; it is further diagnosed from A. jacksonii by its deeper caudal peduncle, caudal peduncle depth 8.6-9.5% of standard length vs. 4.8-7.9% (Ref. 103388).

Biology     Glossary (e.g. epibenthic)

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

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. 130435)


CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

FAO(Publication : search) | FishSource |

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