The lefteye flounder family Bothidae (Order Pleuronectiformes) of Taiwan
Author
Amaoka, Kunio
Author
Ho, Hsuan-Ching
text
Zootaxa
2019
2019-12-04
4702
1
155
215
journal article
24734
10.11646/zootaxa.4702.1.18
d2251320-5eef-450d-9703-2d2004e4962b
1175-5326
3562779
9108DB7D-3722-4F5C-BD76-F387E813BECB
Parabothus kiensis
(
Tanaka, 1918
)
Yellowspotted flounder;
ỳâfľ
Figures 8
D–E;
Table 11
Platophrys kiensis
Tanaka, 1918:225
(
Type
locality: Tanabe,
Wakayama Pref.
,
Japan
)
Parabothus kiensis
:
Okada & Matsubara, 1938:423
;
Shen & Wu, 2012:754
.
Parabothus chlorospilus
(not of Gilbert):
Shen, 1983:13
.
Specimens examined.
NMMB-P12622
(
1 male
,
1 female
, 153.0–168.7), Dong-gang,
25 Mar. 2011
;
NMMB- P18021 (
1 male
133.0), Dong-gang, date unknown
;
NMMB-P22239
(1, 164.6), Dong-gang,
21 Jan. 2015
;
NMMB- P22265 (
1 female
, 118.3), Dong-gang,
11 Feb. 2015
;
NMMB-P25744
(
1 female
, 120.1), Dong-gang,
22 Mar. 2017
;
NMMB-P28992
(
1 female
141.3),
18 Mar. 2018
;
NTUM 05402
(1, 126.3), Tungkong,
19 Nov. 1976
.
Diagnostic features.
D 100–114; A 84–89; P 12–13; C 2+13+2=17; LLs 78–83; GR 0+7–9=7–9; vert. 10+31– 32=41–42.
Body elliptical, deepest slightly anterior of middle of body (38.0–42.2% SL). Head rather small (25.9–27.6% SL); upper profile of head with slight concavity anterior to interorbital space. Snout round, longer than half of eye diameter. Eye diameter about equal to upper-jaw length. Interorbital space deeply concave, its width narrower than eye diameter, wider in males than in females and juveniles, 4.1–4.9% SL in males, 1.0–2.0% in females.
Mouth moderately large, upper-jaw length 8.1–10.1% SL; maxilla extending to slightly beyond anterior margin of lower eye. Prominent knob on mandibular symphysis in males, feeble or absent in females and juveniles. Teeth on both jaws small, uniserial, some pairs of anterior teeth enlarged; lateral teeth on lower jaw somewhat stronger than those on upper jaw. Gill rakers on lower limb moderate in size, not serrate; absent on upper limb.
Scales on ocular side ctenoid with long ctenii; scales on blind side cycloid. Pectoral fin on ocular side moderately large, not elongated (13.7–16.5% SL).
Coloration.
Ocular side of body grayish brown with indistinct dark spots and yellowish green blotches of irregular form; no distinct blotches on any fins; body on blind side milky white.
Size.
Reaching
132 mm
SL in
Taiwan
; up to
203 mm
SL in southern
Japan
(
Amaoka, 1969
).
Distribution.
Northeastern and southwestern
Taiwan
; widespread in Western Pacific Ocean off southern
Japan
to
Indonesia
, northern
Australia
and Coral Sea (
Hensley & Amaoka, 2001
).
Remarks.
This species resembles
Parabothus coarctatus
in body shape, but it differs from the latter in having larger eye (3.0–3.5 vs.
3.5–3.9 in
HL), fewer lateral-line scales (78–83 vs. 87–95), and lacking dark spots on lateral line and along upper margin of upper eye. The specimen identified by
Shen (1983)
as
Parabothus chlorospilus
is a female of
P. kiensis
.