A new species of Schindleria (Teleostei: Gobiiformes: Gobiidae) from the Red Sea (Saudi Arabia) with a specialized caudal-fin complex
Vertebrate Zoology,
Journal Year:
2023,
Volume and Issue:
73, P. 313 - 323
Published: April 6, 2023
Species
of
the
gobiid
genus
Schindleria
are
among
smallest
and
fastest
reproducing
vertebrates
oceans.
We
describe
a
new
species,
qizma
,
from
Red
Sea,
Saudi
Arabia.
It
is
an
extreme
example
progenesis,
within
already
paedomorphic
genus,
with
morphological
traits
clearly
differentiating
it
its
congeners.
has
unique,
unflexed
notochord
straight
urostyle
which
tip
inserted
into
hypural
cartilage,
rather
than
typical
flexed
upturned
other
species
.
belongs
to
short
dorsal-fin
type
further
characterized
by
elongated
but
relatively
deep
body;
dorsal
fin
originating
just
slightly
anterior
anal
(predorsal-fin
length
59.4%
SL
vs.
preanal-fin
60.2%
SL);
head
continuously
increasing
in
depth
posteriorly
profile;
snout
(18.6%
length);
large
eyes
(34.4%
pectoral-radial
plate
(6.3%
13
rays;
11
anal-fin
0–2
procurrent
rays
(where
last
ray
short,
if
present);
first
situated
opposite
second
ray;
toothless
oral
jaws;
females
few
(10–11,
total)
very
(4.6%
SL)
eggs
conspicuous
urogenital
papilla
wide
opening
flanked
two
long,
bilobed
projections;
dorsally
pigmented
swim-bladder;
blackish,
iridescent
eyes,
capped
silvery
layer
irregular
rows
black
dots
or
blotches;
no
additional
external
pigmentation
on
body,
at
least
preserved
specimens.
Language: Английский
Schindleria nana, a new extremely progenetic gobiid fish species (Teleostei: Gobiiformes: Gobiidae) from Lizard Island, Great Barrier Reef, Australia
Journal of Vertebrate Biology,
Journal Year:
2024,
Volume and Issue:
73(23112)
Published: April 10, 2024
Here,
we
describe
a
new
species
of
Schindleria,
Schindleria
nana,
from
Lizard
Island,
Great
Barrier
Reef,
Australia.
The
belongs
to
the
long
dorsal-fin
type
(LDF)
and
is
first
very
small
('dwarf')
LDF
(<
13
mm
TL)
be
described.
It
characterized
by
an
elongate
narrow
body;
dorsal
fin
longer
than
anal
(predorsal-fin
length
63.3%
SL:
preanal-fin
72.1%
SL);
long,
relatively
head
(head
width
46.2%
length)
with
straight
profile;
round
eyes
(24.9%
length);
large
postorbital
distance
(52%
narrow,
slender
pectoral
radial
plate
(width
at
origin
46.4%,
maximum
57.0%
16
rays;
11-12
anal-fin
ray
ventral
sixth
ray;
six
procurrent
rays
gradually
increasing
in
length,
last
elongated,
twice
penultimate
premaxilla
tiny,
conical,
densely
set
teeth;
dentary
zero
teeth
holotype
two
on
left
five
right
adult
paratype;
females
few
(approx.
4-7)
but
eggs
(3.4-3.9%
urogenital
papilla
inconspicuous,
de
facto
just
opening;
swim
bladder
not
pigmented;
black
eyes;
no
other
external
pigmentation
body.
Language: Английский