首页> 美国卫生研究院文献>Journal of Nematology >New species of Rhabdochona Railliet 1916 (Nemata: Rhabdochonidae) fromRainbow Trout in California Streams
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New species of Rhabdochona Railliet 1916 (Nemata: Rhabdochonidae) fromRainbow Trout in California Streams

机译:新物种的Rhabdochona Railliet1916年(Nemata:Rhabdochonidae)来自加利福尼亚溪流中的虹鳟鱼

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摘要

Three new species of Rhabdochona Railliet, 1916 are described and illustrated from Salmo gairdneri Richardson (rainbow trout) in freshwater streams in California: Rhabdochona californiemis n. sp., R. paxmani n. sp., and R. satmonis n. sp. Rhabdochona californiensis n. sp. is characterized by 14 anteriorly directed teeth in the prostome, egg devoid of filaments or floats, male and female tail terminus with a single mucro, left (long) spicule slender with a moderate distended podoid terminal end, spicular ratio 1:3.8. Rhabdochona paxmani n. sp. is characterized by 10 teeth in the prostome, eggs with polar floats, left (long) spicule slender with podoid terminus distended and having a minute subterminal spine; right spicule with prominent gorgeret (barb), spicular ratio 1:4.3, male and female tail terminus with a cuticular conical rounded short projection. Rhabdochona salmoni, n. sp. is characterized by 10 teeth anteriorly directed in the prostome, eggs with polar floats, left spicule slender with a distended podoid terminus; right spicule with a sharply indented gorgeret, spicular ratio 1:4.3, male and female tail terminus with a conical or rounded tip.
机译:在加利福尼亚的淡水溪流中,从鲑鳟鱼(Salmo gairdneri Richardson)(虹鳟)中描述并举例说明了三种新物种的横滨鲑(Rhabdochona Railliet,1916年):横滨鲑。 sp。,R. paxmani n。 sp。和R. satmonis n。 sp。加州横纹藻sp。其特征是在前st上有14个前向齿,卵不带花丝或浮子,雄性和雌性尾部末端有单个粘膜,左(长)针状纤细,适度扩张的足突末端,网孔比为1:3.8。鼠李属sp。其特征是在前st上有10颗牙齿,卵具极地漂浮,左(长)针状纤细,足突末端扩张,并有微小的亚末端脊柱。右针具突出的突(倒钩),齿比为1:4.3,雌雄的尾巴末端具表皮圆锥形的短短突起。鲑红鲑sp。其特征是,其前部有10颗牙齿在前st中,卵具极性浮游物,左针状细长,具扩张的足突末端;右针尖具锯齿状的锯齿,锯齿比为1:4.3,雄性和雌性尾巴末端具圆锥形或圆形尖端。

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