Dorsal spines (total): 2; Dorsal soft rays (total):
7; Anal soft rays: 5. Hypostomus basilisko
is distinguished from all congeners, except those
belonging to the H. cochliodon group, by
having the following unique combination of characters:
absence of notch between metapterygoid and hyomandibula
(vs. presence of notch); and strongly angled dentaries,
less than 80° (vs. shallow angle between dentaries,
generally more than 80°). It differs the other
members of H.
except H. pagei and H.
soniae, by the absence of spots on
body and fins (vs. presence of spots). It is distinguished
from H. pagei by having highly developed
keels on lateral series of plates (vs. keels weak,
almost absent); from H. soniae for having
teeth with a large spoon-shaped mesial cusp and a
lateral cusp, if present, almost imperceptible (vs.
teeth with mesial cusp conspicuously enlarged and
rounded but not spoon shaped; distinct lateral cusp)
and massive odontodes covering the dorsal region of
head and trunk, forming well-developed keels (vs.
less developed odontodes on head and trunk, keels
absent or weakly-developed). It can be distinguished
from H. soniae by the possession of many
well-developed papilla on the internal surface of
anterior and posterior jaws (vs. few papillae on the
internal surface of anterior and posterior jaws);
from H. cochliodon and H. khimaeraby
having 27 vertebrae (29 and 28, respectively); from
hondae (Regan) and H.
plecostomoides (Eigenmann) by the
absence of platelets in the skin around dorsal-fin
base (vs. presence); from H. levis by the
presence of an adipose fin (vs. absence); from H.
taphorni by having both caudal-fin lobes evenly
coloured (vs. bicoloured caudal fin with ventral lobe
darker). Habitat: Occurs in clear-water
streams and rivers. Larger fish remain during the
day lying on soft-bottom patches (mainly on sand,
sometimes on leaf litter) at deeper sites and forage
mainly during the night at shallower areas with rocky
bottom. Grazing during the day were occasionally observed.
Small fish forage during the day and night, always
in shallower areas. Individuals feed mainly on periphyton
from rocky substrates, but also explore from submerged
logs and branches. Aquarium Care:
One of the smallest in this genera and would make
a good aquarium habitant in a large aquarium. As this
genus in the main are messy eaters, good water quality
and filtration would need to be adhered to. A lower
water temperature is advised for this species. Diet:
Will eat all manner of foods in the aquarium, vegetable,
tablet, pellet foods and a good quality flake.
Rio Salobra basin, Rio Paraguay basin. Bodoquena Plateau
in Mato Grosso do Sul, Brazil.
Froese, R. and D. Pauly.
Editors. 2014. FishBase. World Wide Web electronic
publication. www.fishbase.org, ( 11/2014 ). Petersen P.amazonas.dk/ Tencatt, L.F.C., C.H.
Zawadzki and O. Froehlich,
2014. Two new species of the Hypostomus cochliodon
group (Siluriformes: Loricariidae) from the rio Paraguay
basin, with a redescription of Hypostomus cochliodon
Kner, 1854. Neotrop. Ichthyol. 12(3):585-602.