There are now 6 species (2019)
in this relatevely new genera, Otothyropsis alicula,
O. biamnicus, O.
marapoama, O. piribebuy,O. polyodon and O.
dialeukos.Description:
Dorsal spines (total): 2; Dorsal soft rays (total):
7; Anal soft rays: 6; Vertebrae: 26 - 27. Distinguished
from other species of the genus by having the following
characters: middle series of lateral plates truncated
two plates before the caudal fin; inner margin of
the pectoral-fin spine smooth, with no serrae; distal
margin of the accessory flange of the first ceratobranchial
pointed; mid-dorsal lateral series with 17-18 plates
and continuous; abdomen usually with unplated areas
anteriorly in adults; and males with preanal length
63.0-66.8% HL and 19-20 middle lateral plates.
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. Etymology:
The specific name piriebuy: After the river
of the same name, a tributary to the Rio Manduvira,
Rio Paraguay basin.
Common
Name:
Black Oto, LG2
Synonyms:
None
Family:
Loricariidae
Distribution:
South America:Río Piribebuy and Río Aguaray,
Rio Paraguay basin in Paraguay.
Size:
3.0cm (1¼)
Temp:
21-25°c (69-77°f.)
p.H.
6.0-7.5.
IUCN
Red List
This
is a common species in small streams in rural regions.
It has a relatively wide distribution. Therefore, it
is assessed as Least Concern
(LC), (IUCN 2023).
Reference:
Calegari,
B.B., P. Lehmann A. and R.E. Reis,
2011. A new species of Otothyropsis (Siluriformes: Loricariidae)
from the rio Paraguay basin, Paraguay. Neotrop. Ichthyol.
9(2):253-260. Froese, R. and D. Pauly. Editors. 2017.
FishBase. World Wide Web electronic publication. www.fishbase.org,
( 02/2017 ). Vera-Alcaraz, H.S. 2023. Otothyropsis
piribebuy. The IUCN Red List of Threatened Species
2023.
If you would like to contribute to the monthly
factsheets with an article, information or photos, please e-mail
me. You will of course be credited for your work.
If you would like to donate any denomination
of monies to the site just click the above link button. All proceeds
will go to running the site and hopefully to keep it going for a few
years yet.