Actinopteri (ray-finned fishes) > Cichliformes
(Cichlids, convict blennies) > Cichlidae
(Cichlids) > Cichlasomatinae
Etymology: Thorichthys: Greek, thoros, ou = semen (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic; pH range: 6.5 - 7.5; dH range: ? - 10; non-migratory. Tropical; 26°C - 30°C (Ref. 7335); 22°N - 14°N, 95°W - 87°W
Central America: Atlantic slope, in the Usumacinta River drainage, the Belize River drainage, and near Progreso, in Mexico, Guatemala and Belize.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 17.0 cm TL male/unsexed; (Ref. 5723); common length : 6.1 cm TL male/unsexed; (Ref. 12193)
Prefers lower and middle sections of rivers in slow moving waters (Ref. 7335). Lives in mud-bottomed and sand-bottomed canals and rocky ponds (Ref. 5723). Stays close to the shoreline vegetation for protection (Ref. 44091). Omnivorous, but feeds mainly on algae (Ref. 6466). Used in behavioral studies (Ref. 4537). Aquarium keeping: minimum aquarium size 100 cm (Ref. 51539).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Deposits eggs on open substrate such as stones (Ref. 6466), a piece of submerged wood, or a shallow depression excavated in the substrate; from 100 to 500 eggs are deposited and guarded by both parents; newly hatched young are transferred to shallow pits and the parents continue guarding them (Ref. 44091).
Conkel, D., 1993. Cichlids of North and Central America. T.F.H. Publications, Inc., USA. (Ref. 7335)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
Fisheries: of no interest; aquarium: highly commercial
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5020 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02042 (0.00919 - 0.04539), b=3.12 (2.93 - 3.31), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 2.0 ±0.00 se; based on food items.
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (tm<1).
Vulnerability (Ref. 59153
): Low vulnerability (19 of 100) .