• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Zoological Science >Reproductive Strategies, Karyology, Parasites, and Taxonomic Status of Dugesia Populations from Yemen (Platyhelminthes: Tricladida: Dugesiidae)
【24h】

Reproductive Strategies, Karyology, Parasites, and Taxonomic Status of Dugesia Populations from Yemen (Platyhelminthes: Tricladida: Dugesiidae)

机译：也门Dugesia种群的繁殖策略，分类学，寄生虫和分类学地位（蠕虫：Tricladida：Dugesiidae）

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

We present new data on the distribution, reproductive strategies, karyology, and taxonomic status of populations of freshwater planarians from Yemen. Nine populations were sampled and significant differences in their reproductive strategies and karyology are reported. The present study presents the first fully documented record of a naturally sexual, diploid (2n = 18) population of a Dugesia-species in the eastern part of the Afrotropical region. Morphological characters combined with karyological data suggest that these Dugesia populations from Yemen represent a new species, which is herein described as Dugesia arabica Harrath and Sluys, sp. nov. This new species is mainly distinguishable from other Dugesia species that are distributed exclusively in the Mediterranean basin and in the eastern part of the Afrotropical region by the presence of the following features: well-developed and cone-shaped penis papilla, housing an ejaculatory duct that runs ventrally and has a subterminal and ventral opening; a considerably expanded and folded section of the bursal canal at the level of the oviducal openings; absence of a layer of longitudinal muscles on the copulatory bursa and the bursal canal. Specimens from two populations from Yemen were infested with a gregarine protozoon.
机译：我们提出了来自也门的淡水刨鱼种群的分布，生殖策略，分类学和分类状况的新数据。对九个种群进行了抽样，并报告了它们的繁殖策略和染色体学上的显着差异。本研究提出了第一个完整记录的记录，该记录是在非洲地区东部的Dugesia种的自然有性二倍体（2n = 18）种群。形态特征与人体运动学数据相结合表明，来自也门的这些Dugesia种群代表了一个新物种，在本文中被称为Dugsia arabica Harrath和Sluys，sp.。十一月这种新物种主要区别于仅分布在地中海盆地和非热带地区东部的其他杜氏物种，它们具有以下特征：发达的圆锥形阴茎乳头，具有射精管，腹侧运行，并有近端和腹侧开口;在输卵管开口处，法管的扩张和折叠部分明显增加;交接滑囊和法管上没有一层纵向肌肉。来自也门的两个种群的标本中充满了人造黄油原生动物。

著录项

相似文献

  • 外文文献
  • 中文文献
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号