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首页> 外文期刊>Journal of Parasitology >MORPHOLOGICAL AND MOLECULAR DESCRIPTION OF HAEMATOLOECHUS MERIDIONALIS N. SP. (DIGENEA: PLAGIORCHIOIDEA: HAEMATOLOECHIDAE) FROM RANA VAILLANTI BROCCHI OF GUANACASTE, COSTA RICA
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MORPHOLOGICAL AND MOLECULAR DESCRIPTION OF HAEMATOLOECHUS MERIDIONALIS N. SP. (DIGENEA: PLAGIORCHIOIDEA: HAEMATOLOECHIDAE) FROM RANA VAILLANTI BROCCHI OF GUANACASTE, COSTA RICA

机译：南美白对虾的形态学和分子描述（DIGENEA：PLAGIORCHIOIDEA：HAEMATOLOECHIDAE）来自哥斯达黎加瓜纳卡斯特的RANA VAILLANTI BROCCHI

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摘要

An undescribed species of Haematoloechus inhabits the lungs of Rana vaillanti in northwestern Costa Rica. The new species is most similar morphologically to H. medioplexus, having a very small, but well-developed, ventral sucker and lacking extracecal uterine loops, and apparently was mis-identified previously as H. medioplexus in Rana palmipes from Colombia. It differs from H. medioplexus, notably by (1) the shape of the oral sucker, which is elliptical in H. meridionalis and spherical in H. medioplexus; (2) the posterior extent of the vitelline fields, which terminate at the same level in H. medioplexus, but always at different levels in H. meridionalis; (3) the position of the testes, which are immediately posterior to the seminal receptacle and are close together in the new species and far from the seminal receptacle and separated from each other in H. medioplexus; and (4) the location of the genital pore, which is ventral to the cecal bifurcation in the new species and ventral to the pharynx in H. medioplexus. In addition, the new species is unique among members of Haematoloechus by having flaps of tissue on the interior margins of the ventral sucker. The new species shows almost 5% sequence divergence from H. medioplexus in the variable D1 region of the 28s rDNA, complementing the morphological differences.
机译：哥斯达黎加西北部的林蛙（Rana vaillanti）的肺部栖息着一种未描述的嗜血杆菌。新物种在形态学上与中脉嗜血杆菌最相似，具有非常小但发达的腹侧吸盘，并且缺乏盲肠子宫环，并且显然以前被哥伦比亚拉纳棕榈树误认为是中脉嗜血菌。它与中间神经节的区别在于（1）口腔吸盘的形状，它在子午线肌中是椭圆形的，而在中间肌中是球形的。 （2）卵黄体场的后部范围，在中脉中点终止于同一水平，而在子午线中始终终止于不同水平； （3）睾丸的位置，在新物种中紧靠精囊，并在新物种中紧靠在一起，并且远离精囊，在中叶双。中彼此分开； （4）生殖孔的位置，在新物种中位于盲肠分叉的腹侧，而在中叶H. medioplexus则位于咽部的腹侧。此外，该新物种在腹腔吸虫的成员中独一无二，因为其腹侧吸盘的内部边缘具有组织瓣。新物种在28s rDNA的可变D1区显示出与中脉嗜血杆菌近5％的序列差异，弥补了形态学差异。

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