A new species of Aspidophryxus (Isopoda, Dajidae), ectoparasitic on Mysidella hoshinoi (Mysidae) in Japan.
A new species of Aspidophryxus (Isopoda, Dajidae), ectoparasitic on Mysidella hoshinoi (Mysidae) in Japan.
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DOI：
10.3897/zookeys.646.10701
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发表时间：
2017
期刊：
影响因子：
1.3
通讯作者：
Shimomura M
中科院分区：
文献类型：
--
作者：
Shimomura M
本文记述了一种新的达吉虫，即伊豆盾脉虫Aspidophryxus izuensis sp. n.描述了7只雌性和6只雄性，它们寄生在日本中部相模海伊豆大岛的Mysidella hoshinoi Shimomura，2016（Mysidae：Mysidellinae）标本的背甲上，与一种未识别的海葵（Haloclavidae）有关。伊豆盾蚤，新种与其同类的不同之处在于，雌性的体长约与宽一样长，前部最宽;雌性的头突前部细长，长度为宽的一半;雌性的头突前缘超过侧板前缘;雌性的不分节、蠕虫状、细长的pleon;雄性的尾足由原足和内外支组成。提供了该属全世界种检索表。
A new dajid, Aspidophryxus izuensis sp. n., is described from seven females and six males found infesting the dorsal carapaces of specimens of Mysidella hoshinoi Shimomura, 2016 (Mysidae: Mysidellinae) associated with an unidentified species of sea anemone (Haloclavidae) from Izu-Oshima Island, Sagami Sea, central Japan. Aspidophryxus izuensis sp. n. differs from its congeners in having a body length about as long as wide, widest at the anterior part in females; an elongate frontal part of the cephalon, half as long as wide in females; the frontal margin of the cephalon exceeding the anterior margins of lateral lamellae in females; an unsegmented, vermiform, elongate pleon in females; and a uropod composed of a protopod and an inner and outer ramus in males. A key to worldwide species in the genus is provided.