coming from a different location. Habitat:
Most inhabit lotic environment in the rio Arinos and
its tributaries. The rio Arinos is characterized by
a muddy-brown colour and a soft bottom of clay and
sand. Collected mostly in small forest streams of
black or clear water, or in marginal ponds.
Description: Dorsal spines (total): 2; Dorsal
soft rays (total): 8; Anal soft rays: 8. Corydoras
apiaka can be diagnosed from its spotted congeners
by having smaller dorsal-fin spine than the three
anterior branched dorsal-fin rays (vs. dorsal-fin
spine smaller than just two anterior dorsal-fin rays,
or equal in size). It differs from its congeners,
with the exception of C. albolineatus, C.
araguaiaensis, C. haraldschultzi, C.
julii, C. polystictus, C. multimaculatus
and C. xinguensis, by having numerous dark-brown
spots over the head and body (vs. absence of spots).
It can be distinguished from C. albolineatus,
C. araguaiaensis and C. haraldschultzi
by having several spots scattered all over the head
and trunk in a somewhat random pattern (vs. spots
more concentrated and with a single pale horizontal
stripe in the middle of the body in C. albolineatus;
or spots arranged in three or more stripes along the
trunk in C. araguaiaensis and C. haraldschultzi);
pectoral, pelvic and anal fins hyaline (vs. several
series of small blotches over fin rays), and adipose
fin hyaline or bearing one spot (vs. two or more spots).
Corydoras apiaka further differs from C.
multimaculatus and C. xinguensis by
the absence of blotches on interradial membrane of
dorsal fin (vs. presence); adipose fin hyaline or
with a single spot (vs. two or three well defined
spots); spots not reaching over the anal fin base
(vs. spots extending to anal-fin base). It is distinguished
from C. xinguensis by the absence of spots
onanal fin (vs. presence); body spots with diffuse
border (vs. spots with well delimited edge). It can
be further separated from all other spotted species,
except C. multimaculatus, by the naked ventral
region (vs. belly with small platelets). Lineage:
Placed in Lineage 9, the "short-snouted"
species with the designated type species: C. punctatus.
A revision in the future would constitute the resurrection
of the genus name Hoplosopma (Agassiz, 1846).
Aquarium Care: Will do well in a
community setup with smaller tank mates such as Rasboras
and Tetra's. Do not house with aggressive species
or large Cichlids. Diet: Adults can
be fed the usual good quality flake food, frozen bloodworm,
tablet foods, white and grindal worms. Etymology:
Named for the indigenous tribe Apiaká, meaning
'people' in Tupi language, which originally occupied
the middle and lower rio Arinos, lower rio Juruena,
but is nowadays restricted to the lower rio Juruena.
The tribe is known for facial tattoos and bravery
in battles, as well as by anthropophagic rites after
fights. A noun in apposition.
Tributaries of Rio Arinos, Rio Teles Pires and Rio
Preto of the Rio Tapajós basin in Brazil. Type
locality: Brazil. Mato Grosso, Ribeirão
Oito de Julho, a tributary of the right margin of
Rio Arinos, Rio Tapajós Basin, at road MTâ€‘338
between Tapurah- Nova Paraná, Porto dos Gaúchos,
Markos & Taylor, Martin. (2011). Evolution,
ecology and taxonomy of the Corydoradinae revisited. Espíndola, V.C., M.R.S. Spencer, L.R.
Rocha and M.R. Britto, 2014. A new species
of Corydoras Lacépède (Siluriformes:
Callichthyidae) from the Rio Tapajós basin
and its phylogenetic implications. Papéis Avulsos
de Zoologia 54(3):25-32. Froese, R. and D. Pauly. Editors.
2021. FishBase. World Wide Web electronic publication.
www.fishbase.org, ( 08/2021 ). www.corydorasworld.com www.iNaturalist.org