中国大陆沿海鲆科新记录属——线鳍鲆属(Taeniopsetta)和新纪录种——眼斑线鳍鲆(Taeniopsetta ocellata)*
张少秋(1995—), 男, 山西省忻州市人, 硕士研究生, 研究方向为鱼类分类学。email: |
Copy editor: 姚衍桃
收稿日期: 2021-02-21
修回日期: 2021-04-17
网络出版日期: 2021-04-25
基金资助
国家自然科学基金项目(31872570)
南方海洋科学与工程广东省实验室(广州)人才团队引进重大专项(GML2019ZD0404)
A new record genus—Taeniopsetta and species—Taeniopsetta ocellata of Bothidae from the coastal waters of mainland China
Copy editor: YAO Yantao
Received date: 2021-02-21
Revised date: 2021-04-17
Online published: 2021-04-25
Supported by
National Natural Science Foundation of China(31872570)
Key Special Project for Introduced Talents Team of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)(GML2019ZD0404)
2016年10月采自北部湾海域的1尾鱼类标本经鉴定为线鳍鲆属Taeniopsetta Gilbert, 1905的眼斑线鳍鲆Taeniopsetta ocellata(Günther, 1880), 隶属于鲽形目Pleuronectiformes鲆科Bothidae, 这是该属和种首次在中国大陆海域的报道。线鳍鲆属的主要形态特征包括: 体长卵圆形; 双眼位于头左侧; 口小; 有眼侧和无眼侧均有1行小尖牙; 鳞细小, 仅体左侧有1条侧线; 雄鱼有1枚强吻棘和2或3枚眼棘, 雌鱼吻棘和眼棘很钝或无; 无眼侧腹鳍始于有眼侧第2根腹鳍鳍条基部右侧; 腹鳍基较短; 背鳍和臀鳍的部分鳍条延长成丝状。眼斑线鳍鲆的主要形态特征为: 两侧胸鳍不等长; 雄鱼背鳍的第13~17根鳍条及臀鳍的第1~6根鳍条延长成丝状; 体左侧背腹缘分别有2~4个不规则的“V”形或半圆形中空黑色斑块, 斑块内部具一黄色圆斑。
张少秋 , 孔晓瑜 . 中国大陆沿海鲆科新记录属——线鳍鲆属(Taeniopsetta)和新纪录种——眼斑线鳍鲆(Taeniopsetta ocellata)*[J]. 热带海洋学报, 2022 , 41(1) : 1 -6 . DOI: 10.11978/2021023
A specimen collected from the Beibu Gulf in October 2016 was identified as Taeniopsetta ocellata (Günther, 1880) belonging to genus Taeniopsetta (Pleuronectiformes: Bothidae). Such genus and species are reported for the first time from the coastal waters of mainland China. Characters of genus Taeniopsetta mainly include the following: body ovate; both eyes on the left side of body; mouth rather small; teeth uniserial on both sides; scales small, lateral line only on ocular side, absent on blind side; one strong rostral and two or three orbital spines present in males, feeble or absent in females; first ray of ventral fins on the blind side opposite to the second ray on the ocular side; base of ventral fins short; and some of the rays of the dorsal and anal fins prolonged into filaments. The diagnostic features of T. ocellata are as follows: pectoral fins unequal on both sides; the 13th to 17th dorsal-fin rays and six anterior rays of anal fins elongated and filamentous in males; 2~4 irregular V-shaped or semicircular hollow blotches within yellow spots on the upper and lower body on the ocular side.
表1 中国大陆鲆科鱼类中属的种类比较Tab. 1 Comparison of genera in Bothidae of mainland China |
序号 | 鲆科 | 李思忠等(1995) | 序号 | 鲆科 | 李思忠等(1995) |
---|---|---|---|---|---|
1 | Arnoglossus | √ | 11 | Laeops | √ |
2 | Asterorhombus | √ | 12 | Lophonectes | |
3 | Bothus | √ | 13 | Monolene | |
4 | Chascanopsetta | √ | 14 | Neolaeops | |
5 | Crossorhombus | √ | 15 | Parabothus | √ |
6 | Engyophrys | 16 | Psettina | √ | |
7 | Engyprosopon | √ | 17 | Perissias | |
8 | Grammatobothus | √ | 18 | Taeniopsetta | √* |
9 | Japonolaeops | 19 | Tosarhombus | ||
10 | Kamoharaia | 20 | Trichopsetta |
注: *表示本研究中的新记录属; √表示《中国动物志·硬骨鱼纲·鲽形目》(李思忠 等, 1995)中记载有该属 |
表2 基于COI序列计算的眼斑线鳍鲆和刮线鳍鲆的K2P遗传距离Tab. 2 K2P genetic distance of COI of T. ocellata and T. radula |
本研究 | KU945114 | MK617179 | MG865864 | DQ521028 | |
---|---|---|---|---|---|
本研究 | |||||
KU945114 | 0.0000 | ||||
MK617179 | 0.0036 | 0.0036 | |||
MG865864 | 0.0036 | 0.0036 | 0.0036 | ||
DQ521028 | 0.1607 | 0.1607 | 0.1582 | 0.1643 |
表3 本研究与Günther(1880)及Amaoka(1969)研究中眼斑线鳍鲆的形态特征比较Tab. 3 Morphological data of Taeniopsetta ocellata in this study compared to Günther (1880) and Amaoka (1969) |
形态特征 | Günther (1880) | Amaoka (1969) | 本研究 |
---|---|---|---|
SL | 139.7mm | 104.9~172.0mm | 135.5mm |
DFR | 88 | 85~97 | 88 |
AFR | 75~76 | 71~81 | 74 |
CFR | 17 | ||
PFRO | 12~16 | 15 | |
PFRB | 10~14 | 12 | |
VFR | 6 | ||
LLS | 95~113 | 105 | |
GR | 0+4~6 | 0+6 | |
SL/BD | 2 | 1.78~2.12 | 1.76 |
SL/HL | 4 | 3.72~4.34 | 3.72 |
SL/HW | 3.28 | ||
HL/SNL | 5.5~6.95 | 5.97 | |
HL/UED | 3 | 2.89~3.46 | 3.14 |
HL/LED | 2.83~3.59 | 3.28 | |
HL/IOW | 9.10 | ||
HL/UJLO | 3.11~3.52 | 3.31 | |
HL/UJLB | 2.88~3.41 | 3.08 | |
HL/LJLO | 2.27~2.50 | 3.79 | |
HL/LJLB | 2.05~2.29 | 3.67 | |
HL/DFL | 0.65 | ||
HL/PFLO | 1.5~1.98 | 1.76 | |
HL/PFLB | 2.35~3.26 | 2.91 | |
HL/VFLO | 2.11~3.26 | 2.78 | |
HL/VFLB | 1.95~2.74 | 2.68 | |
HL/BVFO | 4.42~6.87 | 6.07 | |
HL/BVFB | 5.12~6.95 | 6.74 | |
HL/AFL | 0.62 | ||
HL/CFL | 1.10 | ||
HL/CPD | 2.4~3.03 | 2.78 | |
背鳍条数延长范围 | 13~19 | 12~20 | 13~17 |
臀鳍条数延长范围 | 1~7 | 1~7 | 1~6 |
*感谢张魁为本研究提供的实验样品。
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