Hemiancistrus is also
known in some literature as Ancistomus but
is also similar to the Peckoltia genera but
has a longer body and a naked ventral region. Habitat:
H. votouro is found in a 2-5 m wide stream,
with rocky and sandy bottom, small rapids separated
by pools and marginal vegetation moderately preserved.
Description: Dorsal spines (total): 2; Dorsal
soft rays (total): 7; Anal spines: 1; Anal soft rays:
4. Distinguished from all other species of Hemiancistrus
except H. chlorostictus, H.
meizospilos, H.
megacephalus and H. macrops by the presence
of light dots on all fins and the lateral and dorsal
portions of body. H. votouro differs from
H. chlorostictus by having more premaxillary
teeth (61-79 vs. 30-54), larger adipose-fin spine
(9.0-10.4% SL vs. 5.8-8.0% SL), deeper caudal peduncle
(11.0-11.8% SL vs. 9.6-10.4% SL), larger pectoral
fin (36.2-41.3% SL vs. 30.6-35.4% SL); larger exposed
portion of cleithrum (11.2-12.7% SL vs. 9.3-10.6%
SL), narrower body at dorsal-fin origin (17.9-19.8%
SL vs. 19.9-25.3% SL) and first anal-fin pterygiophore
not exposed (vs. exposed). H. votouro differs
from H. meizospilos by the smaller orbit
diameter (14.5-16.7% HL vs. 16.7-21.0% HL) and much
smaller light markings (one to three dots per plate
vs. one large dot occupying one to three plates and
skin between them). H. votouro is distinguished
from H. megacephalus and H. macrops
by the number of the light markings per body plate
(one to three small dots per plate vs. only one large
dot on each body plate). Aquarium Care:
Good aquarium habitants for a medium to large tank
and you can also house more than one species. They
like water movement in the aquarium. Diet:
Mainly a vegetarian diet but can also be fed tablet
foods and frozen and live foods such as mosquito larvae,
brine shrimp and shrimps. Etymology:
The specific name votouro: Named for the
Votouro Indian Reserve, situated on Benjamin Constant,
Rio Grande do Sul, Brazil, type locality. Remarks:
Hemiancistrus votouro is endemic to Brazil,
occurring in the upper portion of the Uruguay River
basin and in the Toropi River. The species is frequent
and abundant, and as no significant threats have been
detected that put its population at risk, Hemiancistrus
votouro has been categorised as Least Concern
(LC), (IUCN 2022).
Common
Name:
None
Synonyms:
None
Family:
Loricariidae
Distribution:
South America:
Passo Fundo system, Uruguay River basin, Brazil. Type
Locality: Brazil: Rio Grande do Sul: Benjamin
Constant: arroio Lageado Grande (tributary of the
rio Passo Fundo, Rio Uruguai basin), ca. 2.5 km NE
from Votouro Indian Reserve (27º26'50"S,
52º37'5"W).
Size:
14.0cm. (5½ins)
Temp:
24-28°c (75-83°f.)
p.H.
6.0-7.2.
Reference:
Cardoso, A.R. and J.F.P.
da Silva, 2004. Two new species of the genus
Hemiancistrus Bleeker (Teleostei: Siluriformes: Loricariidae)
from the upper rio Uruguai basin. Neotrop. Ichthyol.
2(1):1-8.
Ferraris, 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. 2024. FishBase.
World Wide Web electronic publication. www.fishbase.org,
( 02/2024 ).
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