Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopteri (ray-finned fishes) > Siluriformes
(Catfish) > Loricariidae
(Armored catfishes) > Hypoptopomatinae
Etymology: Otothyris: Greek, ous, otis = ear + Greek, thyra, -as/thyris, -idos = a little door (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Freshwater; demersal. Tropical
South America: Atlantic coast of southeastern Brazil.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 3.2 cm SL male/unsexed; (Ref. 28152)
Morphology | Morphometrics
soft rays: 6. With 16-21 premaxillary and 13-18 dentary teeth on each jaw element; 2 or more series of ventrally downturned odontodes on anteroventral rostral margin; supraoccipital odontode crests short, low, orbit small, diameter less than infraorbital depth; abdomen with 2-3 paired lateral plates; pair of preanal platelets preceded by 2 or more additional platelets, with small naked areas between platelets; unbranched caudal-fin rays banded; large brown blotch on median caudal-fin rays, two dark brown oblique bars on caudal fin.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Garavello, J.C., H.A. Britski and S.A. Schaefer, 1998. Systematics of the genus Otothyris Myers 1927, with comments on geographic distribution (Siluriformes: Loricariidae: Hypoptopomatinae). Am. Mus. Novit. 3222:1-19. (Ref. 28152)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00617 (0.00264 - 0.01440), b=3.11 (2.91 - 3.31), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 2.4 ±0.1 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months ().
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .