Acanthopagrus taiwanensis , a new sparid fish (Perciformes), with comparisons to Acanthopagrus berda (Forsskål, 1775) and other nominal species of Acanthopagrus
Acanthopagrus taiwanensis , a new sparid fish (Perciformes), with comparisons to Acanthopagrus berda (Forsskål, 1775) and other nominal species of Acanthopagrus
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Acanthopagrus taiwanensis ，一种新的鲈形目鱼类（Perciformes），与 Acanthopagrus berda (Forsskål, 1775) 和其他标名种 Acanthopagrus 的比较
DOI：
10.11646/zootaxa.1202.1.1
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发表时间：
2006
期刊：
影响因子：
0.9
通讯作者：
K. Carpenter
中科院分区：
文献类型：
--
作者：
Y. Iwatsuki;K. Carpenter
本文根据六个曾被误认为台湾鲷A. berda（Forsskal，1775），采自台湾西南东港。台湾黄颡鱼（A. taiwanensis）和台湾黄颡鱼A. berda在整体外观上相似，都有很深的身体。然而，A. taiwanensis与后者的不同之处在于身体更圆，头部最前面的鳞片宽圆，前面有大约10个稍小的鳞片，3或4个颊鳞排，薄的上下嘴唇，年龄较大的个体在眼睛前面的背侧轮廓上有脊，头部的上轮廓均匀地凸起，头部和身体黑色，腹部有明显对比的白色区域，胸鳍上基部有黑点，臼齿扁平。与此相反，A.体深，头部前部具宽圆形鳞片，前部约有20片鳞片，颊鳞列5至6列，上下唇厚，个体较大，眼前有弱脊，吻部凹，头部及身体银灰色，胸鳍上基部无黑点，臼齿略尖。老的A. berda的前两条眶下肌的腹面边缘在上颌后部上方也有较强的内凹，而A.台湾的。我们讨论了与A. berda和contrast A.与相似的同源物。
A new sparid species, Acanthopagrus taiwanensis, is described on the basis of six specimens that were previously misidentified as A. berda (Forsskal, 1775), collected from Tung-kang, southwestern Taiwan. Acanthopagrus taiwanensis and A. berda are similar in overall appearance, both with deep bodies. However, A. taiwanensis differs from the latter in having a more rounded body, broadly rounded anteriormost head squamation with around 10 somewhat smaller scales anteriorly, 3 or 4 cheek scale rows, thin upper and lower lips, older individuals with a ridge on dorsal profile in front of eye and upper profile of head evenly convex, head and body black with sharply contrasting white area ventrally, a dark spot at upper base of pectoral fins, and flat molar teeth. In contrast, A. berda has a deeper body, broadly rounded anteriormost head squamation with around 20 small scales anteriorly, 5 or 6 cheek scale rows, thick upper and lower lips, larger individuals with a weak ridge in profile in front of eye and concave snout profile, head and body silvery gray, no black spot at upper base of pectoral fins and somewhat pointed molar teeth. Older individuals of A. berda also develop a strong concavity of the ventral edge of the first two infraorbitals above the posterior part of upper jaw, while the edge is relatively straight or weakly concave in A. taiwanensis. We discuss the nominal species that have been placed in synonymy with A. berda and contrast A. taiwanensis with similar congeners.