From the Latin obscurus,
meaning indistinct, in reference to the uniform brown
colour of the fish.
to the west; from the west.
Bearing eye-like spots.
filaments, or barbels.
Provided with an eye.
specific epithet is geographic referring to the Ogowe
(Ogôoué) River where the types originated.
Named for the Rio Oiapoque
in French Guiana were this Corydoras gets its
"olive-coloured" in Latin.
Named in honor of Claudio
de Oliveira, from the Universidade Estadual Paulista “Júlio
de Mesquita Filho”, campus Botucatu (SP), in recognition
of his extensive contribution to the knowledge of
Neotropical fish evolution.
catfish (Liosomadoras) named after the Jaguar
cat, Panthera onca, because of its markings.
ensis, suffix denoting
place: Municipio de Onzaga, Departamento de Santander,
Colombia, type locality (Astroblepis onzagaensis).
Behind, back, backward.
specifc epithet is an allusion to the coloration resembling
that of the orca whales (Orcinus orca). A noun
Dedicated to Dr.Gustavo
The new species is
named Chaetostoma orientale, from the Latin orient-,
oriens, orientalis, meaning eastern, from the east, of
or belonging to the east, in reference to its easternmost
distribution among species of the genus. An adjective
in neuter form in agreement with genus gender.
to the east; from the east (and east Africa).
From the Orinoco River,
specific name, orinocoense, refers to the Orinoco River,
Venezuela, the drainage in which this species is endemic.
very ornate or decorated, referring to its “striking”
colouration (translation), with many black spots on body
and dorsal fin and black bands on tail [replacement name
for Synodontis ornatus Boulenger 1920, preoccupied
by Synodontis ornatus Pappenheim 1914].
The specific name is
in reference to the distribution of the species in the
Orinoco basin and its relationship to the species Megalonema
the Greek orphnos = 'dark' or 'dusky' and pteron
= 'feather', 'wing' or 'fin', in reference to the black
spot on the dorsal fin.
After Hernn Ortega
Torres, curator of the fish Nacional Mayor de San Marcos.
the Greek osteon = 'bone' and kara =
'head' or 'top'.
The specific name 'otali'
is a Wayana Amerindian name meaning secret, in reference
to the colouration of the species, similar to its biotope,
making it difficult to observe. Wayana Amerindians live
on the sides of the Upper Maroni River basin where the
new species was found. A noun in apposition.
a spot on the tail.
The specific name of
oxyptera: oxy, sharp; ptera, fin, presumably
referring to the large, falcate pectoral fins (Paravendellia
From the Greek oxys
= 'sharp' or 'acute' and rhynchos = 'snout',
alluding to the long snout.