Nereididae
is
among
the
most
familiar
of
marine
annelid
families,
common
and
well-studied
in
environments
but
paradoxically
no
recent
key
or
identification
guide
exists
to
world's
genera.Here
updated
generic
descriptions,
a
list
characters,
linear
genera,
minimal
diagnoses
that
distinguish
each
genus
from
all
others
family
are
provided.This
information
generated
Delta
database
186
morphological
characters
link
provided
downloadable
software
allowing
same
data
be
interrogated
using
open-source
program
Intkey
-a
nonlinear
multiple
entry
point
computerised
interactive
key.For
literature
also
summarised,
comments
on
taxonomic
status
provided,
published
keys
species
cited.Nexus
format
matrices
for
45
genera
158
species,
representing
scored
146
multistate
character
facilitate
future
phylogenetic
studies.
Invertebrate Systematics,
Journal Year:
2025,
Volume and Issue:
39(2)
Published: Feb. 20, 2025
Molecular
data
have
been
suggesting
the
existence
of
a
complex
cryptic
species
within
taxon
Perinereis
cultrifera
,
which
has
not
fully
explored
yet.
In
this
study,
we
performed
morphological
and
molecular
analysis
(mtCOI-5P
16S
rRNA
28SD2
)
specimens
from
intertidal
marine
brackish
European
localities,
mostly
focusing
on
Mediterranean
Sea
Canary
Islands.
Two
major
phylogenetic
clades
with
at
least
18
divergent
(COI
19.8;
6.4-28.5%)
completely
sorted
lineages
were
uncovered
based
original
data,
13
occurred
exclusively
in
Sea,
further
5
are
unique
to
Italian
waters.
An
additional
morphologically
similar
lineage,
corresponding
P.
oliveirae
coexisting
single
NE
Atlantic
lineage
complex,
was
also
retrieved
as
an
ingroup.
Careful
inspection,
combined
deep
divergence
between
two
perfect
match
each
clade
specific
paragnath
chaetal
types,
highlighted
distinct
groups
species:
Clade
A,
shows
features
matching
historical
descriptions
B
overlooked
morphotype
described
rullieri
.
Although
paragnaths
show
pattern
clades,
their
sizes
considerably
smaller
chaetae
characterised
by
coarse
serration
base
spiniger
blades
long
falciger
blades,
opposed
lightly
serrated
short
falcigers
Further
mainly
thickness,
direction
length
paragnaths,
well
expansion
posteriormost
dorsal
ligules
revealed
clade,
together
geographic
environmental
boundaries
allowed
for
differentiation
most
these
without
data.
Thirteen
new
here
formally
described,
eight
belonging
A:
caesarea
sp.
nov.,
faulwetterae
houbinae
maleniae
miquellai
muscoi
nieri
nov.
twobae
nov.;
five
B:
castellii
juno
jupiter
minerva
tibicena
The
combination
beaucoudrayi
is
proposed
Nereis
previously
considered
synonymous
only
occurring
Atlantic.
Lastly,
s.s.,
s.s
ingroup
redescribed
using
topotypical
material,
available
syntypes
lectotypes
assigned
former
two.
ZooBank:
urn:lsid:zoobank.org:pub:28C64123-DE82-411D-BC96-5E892FC692E3.
Systematics and Biodiversity,
Journal Year:
2022,
Volume and Issue:
20(1), P. 1 - 39
Published: Oct. 17, 2022
Past
molecular
studies
using
mtDNA
sequences
and
alloenzymes
signalled
the
existence
of
at
least
two
cryptic
species
within
Hediste
diversicolor
morphotype,
in
European
coasts.
However,
to
this
day,
no
new
descriptions
have
been
made.
In
study,
we
identified
five
completely
sorted
lineages
a
multi-locus
approach,
including
mitochondrial
DNA
cytochrome
oxidase
I
gene
(COI-5P)
nuclear
markers
ITS2
rRNA
28S
rRNA.
The
data
were
complemented
with
morphometric
measurements
examined
through
multivariate
statistical
analysis
incorporation
dissimilarities.
Apart
from
Baltic
Sea,
where
three
occur
sympatry,
comprises
four
deeply
divergent
allopatric
rest
Europe.
They
group
populations
NE
Atlantic
part
Western
Mediterranean
Sea;
Tyrrhenian
Adriatic
Ionian
and,
lastly,
Caspian,
Black
northern
Aegean
Seas.
lineage
Sea
revealed
low
genetic
distances
compared
one
lacked
enough
specimens
for
analysis,
preventing
further
conclusions
about
its
independent
status.
Three
clusters
mainly
based
on
worm
size,
distance
between
anterior
posterior
eyes,
parapodia
proportions
length
several
prostomial
appendages.
Two
sympatric
present
showed
evidence
possible
hybridization
significant
PCA
variation
them.
remaining
formally
described
as
species,
namely
pontii
sp.
nov.
(Adriatic
Sea)
astae
(northern
Aegean,
Caspian
Seas).
These
can
now
be
recognized
used
biomonitoring
or
other
relevant
ecological
studies.
Finally,
neotype
is
defined
H.
diversicolor,
whose
usage
restricted
lineage.
http://www.zoobank.org/urn:lsid:zoobank.org:pub:948C73FC-B07F-40A3-B8FA-03B60DE2089D
ZooKeys,
Journal Year:
2024,
Volume and Issue:
1196, P. 331 - 354
Published: April 1, 2024
Annelid
biodiversity
studies
in
the
Red
Sea
are
limited
and
integrative
taxonomy
is
needed
to
accurately
improve
reference
libraries
region.
As
part
of
bioblitz
effort
Saudi
Arabia
assess
invertebrate
northern
Gulf
Aqaba,
Perinereis
specimens
from
intertidal
marine
lagoon-like
rocky
environments
were
selected
for
an
independent
assessment,
given
known
taxonomic
ambiguities
this
genus.
This
study
used
approach,
combining
molecular
with
morphological
geographic
data.
Our
results
demonstrate
that
found
mainly
Aqaba
not
only
morphologically
different
other
five
similar
Group
I
species
reported
region,
but
phylogenetic
analysis
using
available
COI
sequences
GenBank
revealed
operational
units,
suggesting
undescribed
species,
P.
kaustiana
sp.
nov.
The
new
genetically
close
shares
a
paragnath
pattern
Indo-Pacific
distributed
helleri
,
particular
Area
III
Areas
VII–VIII.
Therefore,
we
suggest
it
may
belong
same
complex.
However,
differs
latter
shorter
length
postero-dorsal
tentacular
cirri,
median
parapodia
much
longer
dorsal
Tentacular
posteriormost
wider
greatly
expanded
ligules.
Additionally,
two
records
Neom
area
belonging
damietta
suezensis
previously
described
Egyptian
coast
(Suez
Canal)
sympatrically
apparently
sympatric
each
other.
ZooKeys,
Journal Year:
2023,
Volume and Issue:
1182, P. 35 - 134
Published: Oct. 11, 2023
Nereididae
is
among
the
most
familiar
of
marine
annelid
families,
common
and
well-studied
in
environments
but
paradoxically
no
recent
key
or
identification
guide
exists
to
world’s
genera.
Here
updated
generic
descriptions,
a
list
characters,
linear
genera,
minimal
diagnoses
that
distinguish
each
genus
from
all
others
family
are
provided.
This
information
generated
Delta
database
186
morphological
characters
link
provided
downloadable
software
allowing
same
data
be
interrogated
using
open-source
program
Intkey
–
nonlinear
multiple
entry
point
computerised
interactive
key.
For
literature
also
summarised,
comments
on
taxonomic
status
provided,
published
keys
species
cited.
Nexus
format
matrices
for
45
genera
158
species,
representing
scored
146
multistate
character
facilitate
future
phylogenetic
studies.
Invertebrate Systematics,
Journal Year:
2022,
Volume and Issue:
36(11), P. 1017 - 1061
Published: Nov. 16, 2022
Morphologically
similar
species
are
often
overlooked
but
molecular
techniques
have
been
effective
in
signalling
potential
hidden
diversity,
boosting
the
documentation
of
unique
evolutionary
lineages
and
ecological
diversity.
Platynereis
dumerilii
massiliensis
part
a
recognised
complex,
where
differences
reproductive
biology
mainly
highlighted
to
date.
Analyses
DNA
sequence
data
(COI,
16S
rDNA
D2
region
28S
rDNA)
populations
apparent
morphotype
P.
obtained
from
broader
sampling
area
along
European
marine
waters,
including
Azores
Webbnesia
islands
(Madeira
Canaries),
provided
compelling
evidence
for
existence
at
least
10
divergent
lineages.
Complementing
genetic
data,
morphological
observations
better
represented
revealed
two
major
groups
with
distinctive
paragnath
patterns.
Two
new
were
erected:
nunezi
sp.
nov.,
widespread
islands,
jourdei
restricted
western
Mediterranean.
The
combination
agilis
is
also
proposed
Nereis
agilis,
previously
unaccepted
one
present
both
Northeast
Atlantic
redescribed
based
on
topotypic
material.
However,
uncertainty
identity
due
original
brief
description
absence
type
material
prevents
unequivocal
assignment
lineage
assumed
this
previous
studies.
remaining
five
by
only
few
small
specimens
features
poorly
preserved
therefore
not
described
study.
ZooBank:
urn:lsid:zoobank.org:pub:50079615-85E5-447E-BDD7-21E81C2A6F4D
Zoological Journal of the Linnean Society,
Journal Year:
2021,
Volume and Issue:
196(1), P. 169 - 197
Published: Oct. 16, 2021
Abstract
Eumida
sanguinea
is
a
recognized
polychaete
species
complex
which,
in
previous
studies,
has
been
reported
to
have
additional
undescribed
diversity.
We
detected
nine
lineages
by
analysing
DNA
sequence
data
(mitochondrial:
COI,
16S
rRNA
and
nuclear
loci:
ITS
region
28S
rRNA)
of
E.
morphotype
populations
from
broader
sampling
effort
European
marine
waters.
Traditional
morphological
features
failed
provide
consistent
differences
or
unique
characters
that
could
be
used
distinguish
these
species.
However,
complementing
with
morphometrics,
geographic
range,
colour
pigmentation
patterns,
we
revealed
five
new
Two
derived
the
previously
signalled
S21
GB22,
which
are
here
named
as
schanderi
sp.
nov.
fenwicki
nov.,
respectively.
Three
other
based
on
newly
discovered
lineages,
namely
fauchaldi
langenecki
pleijeli
From
six
remaining,
three
represented
fewer
than
two
well-preserved
specimens,
prevented
further
comprehensive
analysis.
The
last
were
only
distinct
when
using
mitochondrial
markers.
Integrative
taxonomy
essential
elucidate
evolutionary
phenomena
eventually
allow
informed
use
complexes
exhibiting
stasis
biomonitoring
ecological
studies.