Review of the genus Cobitis in the Middle East, with the description of eight new species (Teleostei: Cobitidae)
Author
Freyhof, Jörg
Author
Bayçelebi, Esra
Author
Geiger, Matthias
text
Zootaxa
2018
2018-12-21
4535
1
1
75
journal article
27727
10.11646/zootaxa.4535.1.1
a047bcd9-ab65-4e3f-b07a-c830c7af1072
1175-5326
2615773
ABE9DB1F-7378-4571-90C4-A3FDB66527F3
Cobitis levantina
Krupp & Moubayed, 1992
(
Fig. 16–17
)
Cobitis levantina
Krupp & Moubayed, 1992
: 14
, figs. 1–2 (
type
locality:
Syria
: outflow of Buhairat
Hims
near Qattina, 34.666 36.616).
Material examined.
FSJF 2747, 6,
45–82 mm
SL;
Syria
: Nahr al Barid at Nahr al Barid, 35.302 36.345.
Material used in molecular genetic analysis.
FSJF DNA-1214;
Syria
: River Orontes at Al Ghassaniyya, 34.594 36.530. (GenBank accession numbers:
KJ553104
,
KJ553147
).
Diagnosis.
Cobiti
s
levantina
is distinguished from other
Cobitis
species in the Asian Mediterranean Sea basin by a combination of characters, none of them unique. It is distinguished from
C.
evreni
by having a black spot at the upper caudal-fin base (vs. lacking) and Z4 usually formed by a series of distinct blotches (vs. a dark-brown stripe reaching from above pectoral-fin base until anus or beyond). Some individuals of
C. levantina
have the blotches along Z4 partly of completely fused into a stripe.
It is distinguished from
C. battalgilae
by having a single row of blotches in Z4, blotches roundish, horizontally elongate or squarish anterior to the dorsal-fin origin, fused into a stripe in few individuals, not dissociated into a band of small spots or small blotches (vs. blotches in Z4 usually vertically elongate or squarish, often dissociated into a band of small irregularly-shaped blotches and spots) and no axially pelvic lobe or pad (vs. present at least in some individuals). In many
C. battalgilae
,
the pigmentation in Z4 is not dissociated.
Cobiti
s
levantina
is distinguished from these individuals of
C. battalgilae
by having relatively large, irregularly-shaped blotches in Z3, often forming one marbled pattern with pigmentation in Z1 and Z2 (vs. a sand-like pattern of very fine spots and minute blotches in Z3, well distinguished from pigmentation in Z1 and Z2).
Cobitis levantina
is distinguished from
C. bilseli
from the Lake Beyşehir basin by having two laminae circularis in the male (vs. one).
Cobitis levantina
is distinguished from
C. elazigensis
by lacking a pelvic axillary lobe (vs. present) and by the pigmentation in Z3 present at least until the vertical of the dorsal-fin base (vs. Z3 unpigmented or pigmentation reaching from vertical of nape to vertical of pectoral-fin tip).
Distribution.
Cobitis levantina
is found in the upper Orontes River drainage in
Syria
and in the Litani River drainage in
Lebanon
(
Krupp & Moubayed 1992
).
Remarks.
Figure 16
(Orontes in
Syria
, close to the type locality) and
Fig. 17
(Litani in
Lebanon
) show fishes with a quite different colour pattern. Already
Krupp & Moubayed (1992)
examined both populations and show a drawing of a
Cobitis
from the Litani, which agrees well with the one shown on
Figure 17
. We cannot exclude that two species are involved, but we had no materials to test whether the
Cobitis
from the Litani in
Lebanon
is indeed conspecific with
C. levantina
. The description by
Krupp & Moubayed (1992)
include a drawing from a picture of the
holotype
showing an individual lacking the pigmentation in Z3. In all our materials of
C. levantina
, the pigmentation in Z3 is only absent in few juvenile, while the
holotype
of
C. levantina
is adult (
74 mm
SL). Individuals lacking the pigmentation in Z3 occur also in other
Cobitis
species and we might just have not examined enough specimens to find such individuals.
Molecular data (
Fig. 1
) place
Cobitis levantina
in the
C. linea
species group (
C. linea
,
C. aliyeae
,
C. anabelae
,
C. elazigensis
,
and
C. erkakanae
). Based on DNA barcoding it is well separated from all other included
Cobitis
and by a minimum K2P distance of 5.3% to
C. elazigensis
, also supported as two PTP entities.
See below for details to distinguish
C. levantina
from other species in the
C. linea
species group and from other
Cobitis
species found in the Asian Mediterranean Sea basin.