Dactylogyrids (Platyhelminthes: Monogenoidea) Infecting the Gill Lamellae of Flatheads (Scorpaeniformes: Platycephalidae), with Proposal of Platycephalotrema n. gen. and Descriptions of New Species from Australia and Japan
Dactylogyrids (Platyhelminthes: Monogenoidea) Infecting the Gill Lamellae of Flatheads (Scorpaeniformes: Platycephalidae), with Proposal of Platycephalotrema n. gen. and Descriptions of New Species from Australia and Japan
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DOI：
10.3390/d11080132
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发表时间：
2019-08
期刊：
影响因子：
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通讯作者：
D. C. Kritsky;Masato Nitta
中科院分区：
文献类型：
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作者：
D. C. Kritsky;Masato Nitta
Platycephalotrema n．将军(Dactylogyridae) 被提议为 4 个新物种和 5 个先前描述的寄生在鲽鱼鳃上的物种（蝎形目：Platycephalidae）如下： Platycephalotrema okawai n. sp。 （模式种）来自 Platycephalus sp。 1（类型宿主）和 Platycephalus sp. 2、Nakabo & Kai (2013)（当地分别称为“Yoshino-gochi”和“Ma-gochi”）（日本）； Platycephalotrema austrinum n． sp。来自 Platycephalus endrachtensis Quoy & Gaimard（模式宿主）和 Platycephalus sp。 （澳大利亚）; Platycephalotrema bassensis (休斯, 1928)梳子。来自Platycephalus bassensis Cuvier（澳大利亚）； Platycephalotrema koppa n． sp。来自Platycephalus fuscus Cuvier（澳大利亚）； Platycephalotrema macassarensis (Yamaguti, 1963) n.梳子。来自 Platycephalus indicus (Linnaeus)（中国，望加锡）； Platycephalotrema mastix n. 扁头兽sp。来自 P. fuscus 和 P. endrachtensis（澳大利亚）； Platycephalotrema platycephali (Yin & Sproston, 1948)梳子。来自 P. indicus（中国）和 P. fuscus（澳大利亚）； Platycephalotrema sinensis (Yamaguti, 1963) n.梳子。来自 Cociella punctata (Cuvier)（中国）； Platycephalotrema thysanophrydis (Yamaguti, 1937) n.梳子。来自 Inegocia japonica (Cuvier)、Inegocia ochiaii Imamura 和 Cociella crocodilus (Cuvier)（日本、中国）。其他需要进一步研究但可能属于扁头动物的物种包括 Ancyrocephalus vesiculosus Murray, 1931、Haliotrema indicum Tripathi, 1957、Haliotrema swatowensis Yao, Wang, Xia, & Chen, 1998 和 Haliotrema pteroisi Paperna, 1972。区分扁头动物的主要特征包括具有以下特征的物种： (1) 串联性腺（生殖后睾丸）； (2)两个前列腺储库，每个储库独立地排空到男性交配器官的基部； (3)右旋阴道孔和大阴道前庭； (4) 背侧和腹侧成对的形态相似的锚； (5) 具有匙形末端的腹杆； (6) 具有分叉末端的背杆，以及 (7) 没有附件。对新物种进行了描述，并根据新收集的博物馆标本重新描述了 P. thysanophrydis。
Platycephalotrema n. gen. (Dactylogyridae) is proposed for four new species and 5 previously described species parasitizing the gills of flatheads (Scorpaeniformes: Platycephalidae) as follows: Platycephalotrema ogawai n. sp. (type species) from Platycephalus sp. 1 (type host) and Platycephalus sp. 2, both of Nakabo & Kai (2013) (locally known as “Yoshino-gochi” and “Ma-gochi,” respectively) (Japan); Platycephalotrema austrinum n. sp. from Platycephalus endrachtensis Quoy & Gaimard (type host) and Platycephalus sp. (Australia); Platycephalotrema bassensis (Hughes, 1928) n. comb. from Platycephalus bassensis Cuvier (Australia); Platycephalotrema koppa n. sp. from Platycephalus fuscus Cuvier (Australia); Platycephalotrema macassarensis (Yamaguti, 1963) n. comb. from Platycephalus indicus (Linnaeus) (China, Macassar); Platycephalotrema mastix n. sp. from P. fuscus and P. endrachtensis (Australia); Platycephalotrema platycephali (Yin & Sproston, 1948) n. comb. from P. indicus (China) and P. fuscus (Australia); Platycephalotrema sinensis (Yamaguti, 1963) n. comb. from Cociella punctata (Cuvier) (China); Platycephalotrema thysanophrydis (Yamaguti, 1937) n. comb. from Inegocia japonica (Cuvier), Inegocia ochiaii Imamura, and Cociella crocodilus (Cuvier) (Japan, China). Other species requiring further study but potentially members of Platycephalotrema include Ancyrocephalus vesiculosus Murray, 1931, Haliotrema indicum Tripathi, 1957, Haliotrema swatowensis Yao, Wang, Xia, & Chen, 1998, and Haliotrema pteroisi Paperna, 1972. The primary features differentiating Platycephalotrema include species having: (1) tandem gonads (testis postgermarial); (2) two prostatic reservoirs, each emptying independently into the base of the male copulatory organ; (3) a dextral vaginal pore and large vaginal vestibule; (4) dorsal and ventral pairs of morphologically similar anchors; (5) a ventral bar with spatulate ends; (6) a dorsal bar with bifurcated ends, and (7) absence of an accessory piece. The new species are described, and P. thysanophrydis is redescribed based on newly collected and museum specimens.