AquaticRepublic.com - Otothyropsis polyodon (Loricariidae) All Fishes

All Fishes Data Sheet
Scientific Name	**Otothyropsis polyodon** Calegari, Lehmann A. & Reis, 2013
Common Name
Type Locality	Água Clara, ribeirão Tamanduá, tributary to rio Verde, near São Domingos Hydroeletric Plant, upper rio Paraná basin, 20°04’03"S, 53°11’21"W, Mato Grosso dul Sul, Brazil.
Type Locality Notes	A typographical error in the type locality lists the latitude as 20°04’03"N. It should be 20°04’03"S.
Etymology	Otothyropsis: The first part of the name is from Greek (otos = ear and thyris = window) and is in reference to the Hypoptopomatinae genus Otothyris, to which the new taxon is closely related. The second part is from the Greek (opsis = relating to sight and appearance); hence, resembling a hypoptopomatine fish. The species polyodon from the Greek polys, meaning many, and odon, meaning tooth, in allusion to its higher number of teeth compared to the other species.
Species Information
Size	37mm or 1.5" SL. Find near, nearer or same sized spp.
Identification	Otothyropsis polyodon differs from all congeners by having a greater number of premaxillary teeth (19–31 vs. 10–20), greater number of dentary teeth (18–27 vs. 11–19), lower caudal peduncle 6.2–7.6% (vs. 7.6–11.5% SL), dorsal-fin spinelet rectangular in shape (vs. triangular or quadrangular), suture in the posteromesial portion of the paired basipterygium long—same size of the basipterygium medial cartilage (vs. suture smaller—one to two third of the basipterygium medial cartilage).
Sexing	Male hypoptopomins posses a urogenital papilla located immediately posterior to the anus. It is absent in females.
Habitat Information
Distribution	Found in tributaries to the rio Verde a tributary to the upper rio Paraná basin in Mato Grosso do Sul, Brazil. La Plata, Paraná, Upper Paraná, Grande (Paraná), Verde (Paraná) (click on these areas to find other species found there) Login to view the map.
IUCN Red List Category	Least Concern , range map and more is available on the IUCN species page. Last assessed 2022.
Husbandry Information
Breeding	Unreported in the aquarium.
Breeding Reports	There is no breeding report.
Further Information
Reference	Zootaxa 3619 (no. 2), pp 133, Figs. 3A-B, 4.
Registered Keepers	There is no registered keeper.
Wishlists	Love this species? Click the heart to add it to your wish list. There is no wish to keep this species.
Spotters	Spotted this species somewhere? Click the binoculars! There is no record of this fish being seen.
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	Look up O. polyodon on PlanetCatfish.com
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	Look up O. polyodon on Encyclopedia of Life
	Look up O. polyodon on Global Biodiversity Information Facility
	LFS label creator ARN ref:1.4.615.4612
Last Update	2025 Jan 01 12:14 (species record created: 2013 Feb 27 01:25)