DesDescriptioncription
Redescription of Nothobranchius lucius and description of a new
species from Mafia Island, eastern Tanzania (Cyprinodontiformes,
Aplocheilidae). Zoosystematics and Evolution, 93 (1): 35–44.
Abstract
Examination
of
specimens
listed
in
the
original
description
of
Nothobranchius
lucius
revealed
that
they
belong
to
two
species.
Nothobranchius
lucius
is
redescribed
based
on
the
type
series
and
other
specimens
collected
in
the
type
locality
area,
the
Kibasira
Swamp
area,
Rufiji
River
basin,
Tanzania,
at
elevations
between
250
and
300
m.
Nothobranchius
insularis
sp.
n.
is
described
on
the
basis
of
specimens
collected
in
the
north
part
of
Mafia
Island,
Tanzania,
at
about
10–15
m
elevation.
Nothobranchius
lucius
and
N.
insularis
are
considered
closely
related
species
based
on
the
shared
presence
of
long
jaws;
caudal
fin,
in
males,
with
a
broad
dark
grey
to
black
band
on
its
posterior
margin;
black
dots
over
the
whole
flank,
in
females;
metapterygoid
curved,
with
its
middle
and
dorsal
portions
separated
from
the
sympletic
by
a
broad
interspace;
and
posterior
process
of
the
quadrate
shorter
than
the
ventral
length
of
the
quadrate
without
process.
Characters
useful
to
distinguish
them
include
premaxillary
dentition,
caudal
fin
shape,
colour
pattern
of
flank
and
unpaired
fins
in
females,
fin
length,
and
number
of
neuromasts
of
the
posterior
section
of
the
anterior
supraorbital
series.
Both
species
are
members
of
a
group
that
also
includes
N.
elongatus
,
N.
hengstleri
,
N.
interruptus
,
N.
jubbi
,
N.
krammeri
,
and
N.
melanospilus
,
which
are
all
diagnosed
by
the
presence
of
two
neuromasts in the anterior section of th
anterior supraorbital series
Clasification
Genus: Nothobranchius
Subgenus: Adiniops
Group: melanospilus
Geographical Distribution
Maps
Tanzania
IMafia Island, 3 km S. Kirongwe, ’S ’E, about 15 m asl , Tanz. * [7.826 S :
39.815 E] Watters et al., 2002 | Costa, 2017b
Locations/codes
Type locality:approximately 3 km south of Kirongwe, 15 m altitude, Mafia
Island, {eastern} Tanzania.
-Mafia Island TZN 08-5
-Mafia Island TAN 02-4
-Mafia Island TAN 02-5
Notes
Status specie: Not unanimously confirmed
Bibliography
Related:
Wildekamp, R. H., K. M. Shidlovskiy & B. R. Watters. 2009. Systematics of the
Nothobranchius melanospilus species group (Cyprinodontiformes:
Nothobranchiidae) with description of two new species from Tanzania and
Mozambique. Ichthyological Exploration of Freshwaters, 20 (3): 237–254.
[taxonomy as Nothobranchius lucius]