CW173 has now been described
et al.) in 2022.
Found in the same waters as Corydoras
thanatos(CW146). Colouration: Similar
to colour pattern of preserved specimens, but with
light ground colour of body and slightly more evident
stripe from anteroventral portion of eye to upper
lip lateral area. Body covered by greenish yellow
iridescent colouration. Aquarium specimens were observed
to present dorsal and lateral surface of head plus
lateral surface of cleithrum with irregular, rounded
or vermiculated, conspicuous dark brown or black blotches,
and conspicuous blotches on body. Some specimens with
ground color of body greyish yellow. 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: This is akin to most of this
genus, very peaceful, and would be best housed with
small to medium sized tankmates such as Tetras, Rasboras
and Danios or in a species tank for breeding purposes.
Best to purchase 6 individuals or more as they will
be happier in a group. Diet: Readily
accepts a mixed and varied diet which includes granular
foods, tablet food, frozen bloodworm and a good quality
flake. Etymology: The specific epithet
“hypnos” refers to Hypnos (from the Greek
?p???, Ýpnos, which means “sleep”),
the Greek god or personification of sleep, and the
twin brother of Thanatos, the god/personification
of death. The name makes an allusion to the fact that
even though both C. hypnos and C. thanatos
may present some similarities (in colour pattern),
they are completely different in other aspects (general
morphological pattern). A noun in apposition.
Known from the Rio Jamanxim and one of its tributaries,
with unknown name, Rio Tapajós basin, Novo
Progresso Municipality, Pará State, Brazil
Male: 4.5cm (1¾ins)
Female: 5.5cm (2¼ins)
& Taylor, Martin. (2011). Evolution,
ecology and taxonomy of the Corydoradinae revisited. Tencatt LFC, Ohara WM, Sousa LM, Britto MR.
Science and hobby joining forces for the discovery
of three new Corydoras (Siluriformes: Callichthyidae)
from the rio Tapajós basin, Brazil, with comments
on Corydoras sp. CW111. Neotrop Ichthyol. 2022 www.corydorasworld.com