Ryukyua globosa n. gen., n. sp., and R. circularis n. comb., Parasitic in the Opercular Chambers of Pacific and Indian Ocean Clupeid Fishes

Ryukyua globosa n. gen., n. sp., and R. circularis n. comb., Parasitic in the Opercular Chambers of Pacific and Indian Ocean Clupeid Fishes
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琉球球

DOI：
10.1577/1548-8667(1994)006
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发表时间：
1994
期刊：
影响因子：
--
通讯作者：
L. Bunkley
L. Bunkley
中科院分区：
--
文献类型：
--
作者：
E. Williams;L. Bunkley

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琉球龙的特征是：体紧凑、弓状，头埋于腹层，眼大，基节短于腹层，触角近等长，基部分离，下颚须第三条短，怀孕雌虫的上颚足不扩张，腹层逐渐变长，腹层窄于腹层并深埋于腹层，腹层均匀，尾足不达腹层后缘。琉球sp.与Ryukyua circularis n.（pro Livoneca circularis Pillai）的特征，即具矩形而不是三角形的pleotelson，触角1基部之间的头叶，触角不伸到头的后边缘而不伸到头的后边缘。globosa宽长于长，这种不寻常的形状尚未在R.环状的两种沙丁鱼Amblygastersirm和Amblygasterleiogaster均寄生有红腹小沙丁鱼R. globosa和R.印度和泰国的圆叶藓。双重男女组合...
Abstract Ryukyua is characterized by a compact and hunched body, head immersed in pleon, large eyes, coxae shorter than pleonites, subequal antennae with separated bases and a short third article of mandibular palp, a maxilliped that is not expanded in gravid females, pereopods gradually increasing in length, pleon narrower than and deeply immersed in pereon, uniform pleopods, and uropods not reaching posterior margin of pleotelson. Ryukyua globosa n. sp. differs from Ryukyua circularis n. comb. (pro Livoneca circularis Pillai) by having a rectangular instead of triangular pleotelson, a lobe of the head between bases of antennae 1, and antennae not reaching the posterior border of the head instead of extending beyond it. Mature females of R. globosa are wider than long; this unusual shape has not been confirmed in R. circularis. Two sardinellas, Amblygaster sirm and Amblygaster leiogaster, are parasitized by R. globosa in Japan and by R. circularis in India and Thailand. The duplex male-female arrangement...