Actinopterygii (ray-finned fishes) >
Perciformes (Perch-likes) >
Cichlidae (Cichlids) > Pseudocrenilabrinae
Etymology: Perissodus: Greek, perissos = uneven + Greek, odous = teeth (Ref. 45335). More on author: Boulenger.
Environment / Climate / Range
Ecology
Freshwater; demersal. Tropical; 24°C - 28°C (Ref. 2059), preferred ?; 3°S - 9°S
Africa: Endemic to Lake Tanganyika.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 11.0 cm TL male/unsexed; (Ref. 5678)
Scale-eating. Prefers fish that feed from the algal layer or fish which are inattentive, the usual prey being Tropheus and Pseudosimochromis (Ref. 7343).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Maréchal, C. and M. Poll, 1991. Perissodus. p. 367-368. In J. Daget, J.-P. Gosse, G.G. Teugels and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ISNB, Brussels; MRAC, Tervuren; and ORSTOM, Paris. Vol. 4. (Ref. 5678)
IUCN Red List Status (Ref. 115185)
CITES (Ref. 94142)
Not Evaluated
Threat to humans
Harmless
Human uses
Aquarium: commercial
More information
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Estimates of some properties based on models
Phylogenetic diversity index (Ref.
82805): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01514 (0.00709 - 0.03231), b=2.97 (2.80 - 3.14), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic Level (Ref.
69278): 4.2 ±0.86 se; Based on food items.
Resilience (Ref.
69278): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref.
59153): Low vulnerability (13 of 100) .