The new taxon belongs to a clade also encompassing
the genera Schizolecis, Otothyris
and Pseudotothyris. Otothyropsis marapoama
is hypothesized to be the sister-group of Pseudotothyris
and Otothyris based mainly on the presence
of several derived characters of the swimbladder capsule
and associated bones. Several paedomorphic characters
shared by Pseudotothyris and Otothyris
and their significance for the phylogenetic position
of the new genus are discussed (Ribeiro, A.C et al).
Habitat: Otothyropsis marapoama,
a new genus and species, is described based on specimens
recently collected in a headwater stream of the middle
stretch of the rio Tietê, a river from the upper
rio Paraná basin in southeastern Brazil. Aquarium
Care: Treat as with all members of the Hypoptopomatinae
such as the Otocinclus/Parotocinclus genera
with a planted aquarium and an overall cooler temperature.
Diet: Omnivore: algae, tablet foods,
flake and small frozen foods. Remarks:
There are now 6 species in this relatevely new genera,
Otothyropsis alicula, O. biamnicus,
piribebuy,O. polyodon and O.
Rio Tietê basin in Brazil. Type Locality:
Brazil, São Paulo, rio Tietê basin, Município
de Marapoama, ribeirão Cubatão, road
between Marapoama and Elisiário (21º11'35"S,
C.J. Jr., 2007. Checklist of catfishes, recent
and fossil (Osteichthyes: Siluriformes), and catalogue
of siluriform primary types. Zootaxa 1418:1-628. Froese, R. and D. Pauly. Editors. 2017.
FishBase. World Wide Web electronic publication. www.fishbase.org,
( 02/2017 ). Ribeiro, A.C., M. Carvalho
and A.L.A. Melo,
2005. Description and relationships of Otothyropsis
marapoama, a new genus and species of Hypoptopomatine
catfish (Siluriformes: Loricariidae) from rio Tietê
basin, southeastern Brazil. Neotrop. Ichthyol. 3(4):489-498.