Abstract:
Species in the parasitic isopod family Cabiropidae are known to utilise various isopods as hosts but there are currently no records of members parasitising anthuroid hosts. We describe Anthuroniscus gen. nov. for three new cabiropid species, Anthuroniscus shimomurai sp. nov. , Anthuroniscus dentatus sp. nov. and Anthuroniscus latus sp. nov. , all of which are parasitic on anthuroid isopods. Anthuroniscus gen. nov. differs from the other 14 cabiropid genera and 10 genera treated as family incertae sedis in females having an elongate, dorsally compressed, posteriorly tapering body with six pairs of lateral bulges; and cryptoniscus larvae in the following combination of characters: (1) eyes lacking, (2) antennular article 1 with eight teeth on the posterior margin, (3) uropodal exopod and endopod rectangular rather than tapering, and endopod longer than exopod, and (4) pleotelson trapezoidal, 2× as wide as long. Anthuroniscus shimomurai sp. nov. was parasitic on Mesanthura sp. from Kaichu Doro, Uruma, Okinawa, south-western Japan; A. dentatus sp. nov. on Accalathura sp. from Irabu Island, Miyako Islands, Okinawa; and A. latus sp. nov. on Colanthura nigra from Kanagawa, central Japan. In pairwise comparisons, the three new species showed p -distances of 0.6-1.3% for the 18S rRNA gene (1440 positions); and A. shimomurai sp. nov. and A. latus sp. nov. showed a p -distance of 36.2% for the 16S rRNA gene (412 positions). In an 18S -based maximum-likelihood tree, an Anthuroniscus gen. nov. clade was the sister group to Cryptoniscoidea sp., parasitic on an ostracod species. This is the first study reporting Cabiropidae from Japan and anthuroids as hosts for Cryptoniscoidea. ZooBank: urn:lsid:zoobank.org:pub:2EE042E2-AE48-4B87-B495-8436462146B9.
摘要:
已知寄生等足类科Cabiropidae中的物种利用各种等足类作为宿主,但目前尚无寄生类食宿主的成员的记录。我们描述了红豆杉。11月。对于三个新的cabiropid物种,石头花。11月。,斑马。11月。和石竹.11月。,所有这些都寄生在类体等足类动物上。石竹根.11月。与其他14个Cabiropid属和10个属不同,在女性中被视为家族incertaesedis,背侧受压,身体向后逐渐变细,有六对侧向凸起;隐窝幼虫具有以下特征:(1)眼睛缺乏,(2)后缘有八颗牙齿的触角物品1,(3)内足腹外足动物和内足动物呈矩形而不是锥形,内脚架比外脚架长,和(4)pleotelson梯形,2倍一样宽。石头花。11月。寄生于Mesanthurasp.来自KaichuDoro,Uruma,冲绳,日本西南部;A.dentatussp.11月。关于Accalathurasp.来自伊拉布岛,宫古群岛,冲绳;和A.latussp.11月。神奈川县的黑草,日本中部。在成对比较中,这三个新物种的18SrRNA基因(1440个位置)的p距离为0.6-1.3%;和A.shimomuraisp.11月。和A.latussp.11月。显示16SrRNA基因的p距离为36.2%(412个位置)。在基于18S的最大似然树中,一株花竹.11月。Clade是Cryptoniscoideasp.的姐妹组织。,寄生在一个ostracod物种上。这是第一项研究报告了日本的Cabiropidae和天体科作为隐球菌的宿主。ZooBank:urn:lsid:zoobank.org:pub:2EE042E2-AE48-4B87-B495-8436462146B9。