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International Journal of Marine Science 2014, Vol.4, No.28, 253-258
http://ijms.biopublisher.ca
255
Figure 3
Trachinotus baillonii
: OMMSFC 1236, 360 mm TL,
Basrah, Iraq
Table 2 Morphometric and meristic data of
Trachinotus bailloni
collected from the Arabian Gulf coasts of Iraq (TL, total; HL,
head length; SL standard length; all measurements in
millimeters)
Morphometric/ meristic data
Total length
353
-
650
Fork length (% in TL)
267
-
490(75
-
75.3)
Standard length (% in TL)
239
-
440(67
-
67.9)
Head length (% in SL)
58
-
107(24
-
24.6)
Eye diameter (% in HL)
18
-
33(31
-
31.8)
Preorbital length (% in HL)
8
-
15(13
-
14)
Posorbital length (% in HL)
26
-
48(44
-
44.9)
Predorsal fin length (% in SL)
120
-
220(50
-
50.4)
Postdorsal fin length (% in SL)
133
-
243(55.5
-
55.9)
Prepectoral fin length (% in SL)
220
-
404(92
-
92.9)
Preanus length (% in SL)
129
-
237(54
-
54.9)
Preanal fin length (% in SL)
142
-
261(59
-
59.3)
Postanal fin length (% in SL)
223
-
409(93
-
94)
Maximum body depth (% in SL)
112
-
206(47
-
48)
Caudal peduncle depth (% in SL)
23
-
42(9
-
9.6)
Pectoral fin length (% in SL)
46
-
84(19
-
19.5)
pelvic fin length (% in SL)
52.5
-
94.5(21.9
-
22.0)
length of dorsal fin lobe (% in SL)
18.8
-
33.8(7.9
-
8.1)
length of anal fin lobe (% in SL)
19.5
-
35.1(8.3
-
8.8)
Meristic characters
Dorsal fin spines
7
Dorsal fin rays
19
Anal fin spines
3
Anal fin rays
17
Trachinotus bailloni
(Lacepède, 1801), Dor 1984:131
,
Smith-Vaniz 1986:658, Daget & Smith-Vaniz 1986:319,
Goren & Dor 1994:35, Randall 1995:188, Carpenter et
al. 1997:166, Smith-Vaniz 1999:2745 in Carpenter
and Niem 1999, Manilo & Bogorodsky 2003:S107,
Heemstra et al. 2004:3323, Heemstra & Heemstra
2004:315, Randall 2005:238, Springer & Smith-Vaniz
2008:31, Fricke et al. 2009:58.
Caesiomorus quadripunctatus
Rüppell, 1829: 95-141
(Red Sea)
Trachinotus oblongus
Cuvier, 1832: 1-470
Trachynotus cuvieri
Wakiya, 1924: 139-292, Pls. 15-38.
Materials examined
15 specimens, 350-650 mm TL, OMMSTC 1236,
Iraqi marine waters, 29 °47 ' 55.71 '' N 48°43' 32.9 ''
E, 20
th
Mar. 2012.
Description
The meristic count and morphometric measurements
of the 15 specimens of
T. baillonii
followed those of
Fisher and Bianchi (1984) (Table 2). The range of
total length was 350-650 mm which is higher than that
provided by Daget and Smith-Vaniz (1986).
T. baillonii
has an elongated to ovate compressed
body and a blunt snout. It has small villiform teeth on
both jaws and tongue without teeth; dorsal fin with
lobe; short pelvic fins; lateral line slightly irregular;
no scutes or caudal peduncle grooves; body
silvery-blue to grey above, silvery white below, sides
with 1 to 5 relatively small black spots with half of
them below lateral line, they are spots are absent on
specimens smaller than about 10-13 cm fork length
and the most important diagnostic character of the
colour patter is the size of the spots (typically equal to
or smaller than pupil diameter). Caudal, second dorsal
and anal fins grey to black with dark lobes usually
darkest.
Distribution
T. baillonii
has a wide range of distribution from the
Indo-Pacific, the Red Sea to the Line and
Mangaréva islands and to north and south of Japan
and to the south of Lord Howe and Rapa (Froese
and Pauly, 2013). Froese and Pauly (2013) based on
Smith-Vaniz (1984) stated that T. baillonii is present
in both the Iranian and Saudi Arabian coasts of the
Arabian Gulf. Checking Smith-Vaniz (1984) reference,
the north-most distribution of this species in the
area is the northern part of the Gulf of Oman. The
image given by Blegvad and Løppenthin (1944) for
this species represents a new record to the Arabian
Gulf, but not the Arabian side of the gulf. Therefore,
our record is the first to the waters of the Arabian
side of the gulf.