Synchrotron Microtomographic Osteology of the Chinese Subterranean Catfish: Description and Systematic Analysis
Yan He,
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John G. Lundberg,
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Jingwen Yang
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et al.
Journal of Ichthyology,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 31, 2025
Language: Английский
A taxonomic review of the vampire catfish genus Paracanthopoma Giltay, 1935 (Siluriformes, Trichomycteridae), with descriptions of nine new species and a revised diagnosis of the genus
Papéis Avulsos de Zoologia,
Journal Year:
2022,
Volume and Issue:
62, P. e202262072 - e202262072
Published: Nov. 4, 2022
A
taxonomic
revision
is
presented
of
the
genus
Paracanthopoma,
probably
least-known
vandelliine
at
present.
The
work
based
on
most
material
available
in
museums
worldwide
and
includes
a
major
expansion
knowledge
about
genus.
Paracanthopoma
circumscribed
as
monophyletic
group
basis
nine
putatively
synapomorphic
characters.
Evidence
provided
for
Paravandellia
sister
groups
two
genera
are
comparatively
diagnosed.
total
13
species
recognized
which
new
one
transferred
from
Paravandellia:
Pc.
ahriman,
species,
alleynei
(Henschel
et
al.,
2021),
carrapata,
cangussu
Henschel
2021,
capeta,
daemon,
irritans,
malevola,
parva
Giltay,
1935,
saci
Dagosta
&
de
Pinna,
satanica,
truculenta,
vampyra,
species.
Different
display
high
degree
phenotypic
divergence
diagnosed
traditional
well
morphological
characters
both
external
internal
anatomy.
Geographical
distributions
mapped
each
an
identification
key
provided.
Preliminary
evidence
suggests
existence
four
main
subclades
within
Paracanthopoma.
first
cangussu,
irritans.
second
subclade
comprises
parva,
truculenta.
third
clade
malevola
satanica
fourth
vampyra.
last
lacks
some
putative
synapomorphies
all
other
members
seems
to
be
rest
Relationships
capeta
not
clear,
but
exists
former
being
related
latter
subclade.
Language: Английский
High Endemism in an Endangered Biodiversity Hotspot: Phylogeny, Taxonomy and Distribution Patterns of Catfishes of the Psammocambeva Alpha-Clade (Siluriformes: Trichomycteridae) from the Rio Doce Basin, Brazil
Fishes,
Journal Year:
2023,
Volume and Issue:
8(10), P. 474 - 474
Published: Sept. 22, 2023
The
Rio
Doce
basin
is
situated
in
a
biodiversity
hotspot,
with
some
fish
groups
still
superficially
known.
intense
process
of
habitat
loss
and
water
contamination
justifies
efforts
to
speed
up
the
pace
describing
species
diversity.
Herein,
we
focus
on
clade
trichomycterine
catfishes,
subgenus
Psammocambeva,
genus
Trichomycterus,
performing
multigene
phylogenetic
analysis,
which
integrated
comparative
morphological
analysis
corroborates
monophyly
relationships
four
complexes.
Five
new
are
recognised
described.
Species
distribution
patterns
support
recognition
five
areas
endemism
for
trichomycterines,
most
well-known
centres:
Serra
do
Espinhaço,
Brigadeiro,
Caparaó,
Castelo,
upper-middle
Doce.
Trichomycterine
diversity
basin,
16
species,
15
belong
lower
than
smaller
neighbouring
Paraíba
Sul
21
subgenera.
Data
suggest
that
diversification
former
relatively
younger,
following
initial
Psammocambeva
Miocene,
whereas
latter
has
been
estimated
have
occurred
during
Oligocene.
This
study
reinforces
importance
naming
taxa
delimitating
as
primary
tools
conservation
strategies.
Language: Английский
A Poorly Known Catfish Clade in an Endangered Neotropical Biodiversity Hotspot: Relationships and Distribution Patterns of the Cambeva variegata Group (Siluriformes: Trichomycteridae)
Fishes,
Journal Year:
2024,
Volume and Issue:
9(4), P. 116 - 116
Published: March 24, 2024
The
Cambeva
variegata
group
(CVG)
is
endemic
to
a
region
situated
in
the
intersection
of
two
endangered
biodiversity
hotspots,
Cerrado
and
Atlantic
Forest,
drained
by
important
South
American
river
basins,
upper
Rio
Paraná
São
Francisco
basins.
Presently,
CVG
comprises
nominal
species,
besides
some
still
undescribed.
We
first
performed
molecular
phylogenetic
analysis
(total
3368
bp)
for
five
species
30
outgroups,
which
supported
monophyly
its
inclusion
Cambeva.
Most
morphological
character
states
distinguishing
from
congeners
are
also
present
Scleronema,
possibly
consisting
plesiomorphic
features.
time-calibrated
phylogeny
group,
possible
relationships
between
geographical
distribution
patterns
palaeogeographical
events.
estimated
time
origin
Middle
Miocene
nearly
contemporaneous
past
hydrographical
configuration
when
part
basin
was
connected
basin.
lineage
split
occurring
end
corresponds
major
break
that
palaeo
Species
diversification
Pliocene
early
Pleistocene
compatible
with
final
drainage
rearrangement.
This
study
highlights
urgent
need
more
detailed
studies
on
diversity
poorly
known
organisms
this
highly
diverse
threatened
region.
Language: Английский
Skeletal ontogeny of the Plainfin Midshipman, Porichthys notatus (Percomorphacea: Batrachoidiformes)
Journal of Anatomy,
Journal Year:
2022,
Volume and Issue:
242(3), P. 447 - 494
Published: Dec. 16, 2022
Abstract
Batrachoidiformes
are
benthic
fishes
that
utilize
the
undersides
of
rocks
as
spawning
nests.
Their
larvae
attached
to
nest
and
nourished
by
a
large
yolk
sac.
The
evolutionary
shift
from
feeding,
free‐swimming
sedentary
reliant
on
their
sac
for
nutrition
can
lead
changes
in
skeletal
development.
also
have
many
morphological
specializations,
such
five
pectoral‐fin
radials
(versus
four
other
acanthomorphs)
uncertain
homology,
determination
which
may
phylogenetic
implications.
A
larval
series
Porichthys
notatus
was
collected
its
ontogeny
is
described.
In
P.
ossification
pharyngeal
toothplates
occurs
relatively
later
than
percomorphs
with
larvae.
posterior
basibranchial
copula
cartilage
(=
fourth
basibranchial)
has
unique
development
among
fishes:
it
initially
develops
paired
element
at
6.8–7.1
mm
NL
before
fusing
posteriorly
forming
single
median
7.4
SL.
Cartilages
hypobranchial
transitory,
being
observed
two
specimens
6.8
7.3
ceratobranchial
four.
previously
identified
dorsalmost
pectoral
radial
bone
formed
hypertrophied
propterygium
ossifies
earliest
stages
three
dorsal
spines,
but
during
late
development,
growth
third
spine
interrupted.
compared
discussed
context
acanthomorph.
Language: Английский
Morphological Characteristics of the Nonindigenous Brown Bullhead Ameiurus nebulosus (Le Sueur, 1819) in Lakes of the Karelian Isthmus (Northwestern Europe)
Contemporary Problems of Ecology,
Journal Year:
2024,
Volume and Issue:
17(2), P. 201 - 207
Published: April 1, 2024
Language: Английский
Monophyly or Homoplasy? The Relationships of a Rare New Species of Cambeva (Siluriformes: Trichomycteridae) from the Brazilian Atlantic Forest with a Bicolored Caudal Pattern
Taxonomy,
Journal Year:
2024,
Volume and Issue:
4(2), P. 341 - 353
Published: May 23, 2024
The
Brazilian
Atlantic
Forest,
one
the
five
main
biodiversity
hotspots
in
world,
still
houses
many
organisms
that
are
rare
and
unknown
to
science,
mostly
concentrated
mountain
ranges.
Herein,
we
describe
a
new
species
of
Cambeva
from
Rio
Tietê
drainage
at
Serra
da
Mantiqueira,
exhibiting
caudal
fin
color
pattern
comprising
light-yellowish–white
bar
posteriorly
edged
by
black
pigmented
area.
A
similar
was
described
for
C.
castroi,
diabola,
melanoptera,
also
endemic
Paraná
basin,
considered
evidence
close
relationships
among
these
three
species.
However,
other
morphological
characteristics
highly
suggest
is
not
closely
related
melanoptera).
perform
molecular
phylogenetic
analysis
using
two
mitochondrial
genes
nuclear
gene,
including
all
with
bicolored
pattern.
strongly
supports
as
member
alpha-clade,
therefore
distantly
those
belonging
beta-clade,
indicating
this
has
homoplastically
arisen
Cambeva.
data
reported
here
reinforce
urgent
need
field
studies
better
understand
different
evolutionary
patterns
found
genus,
since
an
intense
process
environmental
degradation
course.
Language: Английский
A new rare catfish species from southeastern Brazil provides insights into the origins of similar colour patterns in syntopic, distantly related mountain trichomycterines (Siluriformes, Trichomycteridae)
Zoosystematics and Evolution,
Journal Year:
2024,
Volume and Issue:
100(2), P. 755 - 767
Published: June 11, 2024
Colour
patterns
are
diverse
in
trichomycterine
catfishes
and
often
used
to
diagnose
species.
Here,
we
analyse
the
first
case
of
adults
two
syntopic
species
Trichomycterus
sharing
nearly
identical
colour
patterns:
a
rare
new
subgenus
Paracambeva
maculosus
,
distantly
related
Trichomycterus.
Both
endemic
upper
Rio
Paraíba
do
Sul
basin
(RPSB),
which
had
different
course
until
Tertiary
period
is
situated
within
Southeastern
Brazilian
Continental
Rift,
mostly
active
Eocene-Oligocene.
A
time-calibrated
multigene
analysis,
3144
bp,
supported
as
sister
itatiayae
both
comprising
lineage
with
Middle
Miocene
age,
when
that
pattern
would
have
arisen.
The
diagnosed
by
characters
from
latero-sensory
system
bone
morphology.
Our
results,
combined
available
biogeographical
data,
indicated
T.
arising
Late
Pliocene,
following
dispersal
its
group
RPSB
after
river
changing.
Two
hypotheses
for
independent
origin
same
discussed.
First,
evolutionary
convergence
adaptation
live
on
similarly
coloured
gravel
substrate,
giving
some
cryptic
advantage
against
predators.
Second,
mimetic
association
through
anti-predation
features.
In
latter
case,
although
trichomycterids
lack
fin
spines
inoculate
venom
other
catfishes,
here
studied
supposed
axillary
gland
above
pectoral
fin,
just
posterior
opercular
odontodes,
but
properties
functions
still
unknown.
Language: Английский
Top mountain areas of subtropical southern Brazil sheltering four new small-ranged catfishes (Siluriformes, Trichomycteridae): relationships and taxonomy
Evolutionary Systematics,
Journal Year:
2024,
Volume and Issue:
8(2), P. 199 - 218
Published: Sept. 11, 2024
Mountainous
regions
typically
host
a
great
diversity
of
small-ranged
species,
often
contributing
for
delineating
world
biodiversity
hotspots.
Species
trichomycterine
catfishes
have
been
recorded
several
high-altitude
areas
tropical
South
America,
but
field
inventories
in
top
mountains
southern
Brazil
are
still
rare.
Here
we
report
four
new
species
collected
streams
the
Rio
Iguaçu
at
Serra
do
Espigão
(RISE)
altitudes
between
about
970
and
1020
m
asl,
one
eastern
portion
RISE
three
western
portion.
A
molecular
phylogenetic
analysis
indicated
that
these
belong
to
Cambeva
beta-clade,
which
comprises
all
endemic
drainage,
together
not
forming
monophyletic
group.
The
also
high
variably
related
from
lower
altitudes.
only
appears
basal
position
well-supported
clade
(
beta1-clade),
with
appearing
subclade
beta1-clade
occurring
vast
area
Brazil.
New
diagnosed
by
combinations
morphological
character
states,
including
meristic,
colouration,
latero-sensory
system,
osteological
data.
Language: Английский
Ontogeny and phylogeny in Trichomycteridae (Teleostei, Siluriformes): patterns in the development of morphological complexes
Published: July 18, 2023
Smaller
than
my
dreams,
I
shall
not
be
(Lindolf
Bell),
that
was
the
phrase
guided
me
throughout
PhD.It
a
long
journey
passed
in
blink
of
an
eye
within
dense
and
severe
storm,
yet
still
unable
to
hide
calmness
at
end
horizon.Well...
but
what
would
become
this
document
present
you
today
if
it
weren't
for
biological
chosen
families?My
strengths
scattered
across
planet,
never
allowing
oar
slip
from
hand,
helped
hold
sails
steady,
when
tired,
they
always
towards
safe
shores.A
simple
thank
may
enough,
first,
like
express
deep
gratitude
family,
especially
mother
Hérica
Mária
father
José
do
Carmo,
being
foundation,
haven,
no
matter
where
was.Whenever
felt
afraid,
were
right
Language: Английский