Habitat: This
species is common in the Guayas River drainage.
Description: Hemiancistrus landoni
differs from other loricariids by the following characters:
Interopercle with eight large stiff spines and twenty
to thirty smaller spines; six bony plates between
dorsal and adipose fins, fifteen lateral body plates
along the side; mouth inferior, with a single row
of numerous fine depressible moveable teeth in each
jaw (Glodek, 1978). 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 landoni: In honour of American
businessman and philanthropist Hugh McKennan Landon
(1867–1947), who helped finance expedition during
which holotype was collected. Remarks:
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.
Common
Name:
None
Synonyms:
None
Family:
Loricariidae
Distribution:
South America:
Guayas River basin, Ecuador. Type Locality:
Naranjito, Ecuador.
Size:
25.0cm. (10ins)
Temp:
24-28°c (75-83°f.)
p.H.
6.0-7.2.
IUCN
Red List
Hemiancistrus
landoni is distributed throughout the Guayas, Arenillas,
Puyango and Zaracay rivers on the Pacific slope of Ecuador.
Extent of Occurrence (EOO) is estimated to be 19,532-32,211
km2. Total population size and population trend are
unknown. A number of threats in Western Ecuador are
producing inferred continuous declines in habitat quality.
However, their direct impact on H. landoni
are largely unknown. Uncertainty regarding the scope
of existing threats and limited ichthyological survey
in western Ecuador prevent an accurate estimation of
the number of threat-based locations where this species
occurs. Given a relatively broad range and no indication
of major range-wide population decline, H. landoni
is assessed as Least Concern
(IUCN 2021).
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