目的:来自印度西南海岸垃圾鱼的Elthusa标本被描述为一种新的寄生囊体,Elthusanemosp.11月。,(甲壳类动物:Isoboda)。稍后,巴伦西亚的鳞茎鳞茎的分支腔,1837年被记录为其微观和宏观栖息地(宿主)。
方法:从Neendakara(08°30.0\'N76°53.30\'E)鱼类着陆中心获得的垃圾鱼类中,收集了未鉴定的细胞样的新鲜/活体标本,Kollam区,喀拉拉邦,印度西南海岸。经过长时间的寻找寄主物种,我们从深海鱼的分支腔中找到了等足动物,1837年(Callionmiformes:Callionymidae)。根据产卵雌性对新物种进行了描述和说明。
结果:Elthusanemosp.11月。,具有以下字符组合集:主体略微扭曲,细长的,背面光滑,几乎是最大宽度的两倍;翅膀短,~14%体长,宽度是pereon最大宽度的0.8倍;在pleonite2处最宽,在pleonite1处最窄;只有pleonite1,被pereonite7后外侧扩张和coxa7横向重叠;在胸足类2上存在阑尾男性;尾足的长度是pleotelson的0.8倍;在第4条上有两个羽状刚毛的天线。
结论:Elthusanemosp。11月。,是印度水域已知的第六种属。
OBJECTIVE: Specimens of Elthusa from trashfish of the Indian SW coast were described as a new parasitic cymothoid, Elthusa nemo sp. nov., (Crustacea: Isopoda). Later, the branchial cavity of the Blotchfin dragonet Callionymus filamentosus Valenciennes, 1837 were documented as its micro- and macro-habitat (host).
METHODS: Fresh/live specimens of unidentified cymothoid samples were collected from the trash fishes obtained from Neendakara (08°30.0\' N 76°53.30\' E) fish landing centre, Kollam district, Kerala state, southwest coast of India. After a long search for the host species, we recovered the isopod from the branchial cavity of the deep-sea fish Callionymus filamentosus Valenciennes, 1837 (Callionymiformes: Callionymidae). The new species is described and illustrated based on ovigerous females.
RESULTS: Elthusa nemo sp. nov., has the following sets of combinations of characters: body slightly twisted, elongated, dorsal surfaces smooth, nearly twice as long as greatest width; pleon short, ~ 14% body length, 0.8 times as wide as pereon maximum width; widest at pleonite 2 and narrowest at pleonite 1; only pleonite 1, laterally overlapped by pereonite 7 posterolateral expansion and coxa 7; presence of appendix masculina on pleopod 2; uropods 0.8 times as the length of pleotelson; antenna with two plumose setae on article 4.
CONCLUSIONS: Elthusa nemo sp. nov., is the sixth species of the genus known from Indian waters.