A comparative analysis of the spatangoid echinoid genera Brissopsis and Metalia : a new genus and species of spatangoid (Echinodermata: Echinoidea: Brissopsidae) from the Philippines and the reassignment of Brissopsis persica to Metalia
A comparative analysis of the spatangoid echinoid genera Brissopsis and Metalia : a new genus and species of spatangoid (Echinodermata: Echinoidea: Brissopsidae) from the Philippines and the reassignment of Brissopsis persica to Metalia
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Spatangoid echinoid属Brissopsis和Metalia的比较分析：来自菲律宾的spatangoid（棘皮动物：Echinoidea：Brissopsidae）的新属和种以及Brissopsis persica到Metalia的重新分配
DOI：
10.11646/zootaxa.1760.1.1
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发表时间：
2008
期刊：
影响因子：
--
通讯作者：
S. Coppard
中科院分区：
文献类型：
--
作者：
S. Coppard
凡诺登布氏布氏虫（Brissalius vannoordenburgi gen. nov., sp. nov.）产于菲律宾锡基霍岛（Siquijor Island）附近200米深处，是典型的布氏布氏虫科（briissalius Brissalius），在用于建造漏斗的边缘系膜内的ambulacra III上有专门的输卵管足。它与布利桑属和金属属的不同之处在于有一个盾形的肛下筋膜，并有汇合的后花瓣。这个物种有特别多样化的高度局部化的马蒂，有三种不同形式的球形马蒂（单瘘管状，有齿的瘘管状和有齿的开叶），三种形式的直叶三叉（窄瓣，匙形和端齿）以及典型的蝶形头状，蛇头状和三叶状马蒂。颖花是属中唯一具有盾形肛下筋膜的种。然而，本种有发散的后花瓣，单（无裂片）前离口管足，沿前足部增大的结节，无肛门腱束，并且缺乏球形和蛇头的马蒂。这些结果表明，这种布氏体不属于布氏体属，而应归入梅属。
Brissalius vannoordenburgi gen. nov., sp. nov. occurs at depths of 200 meters off Siquijor Island in the Philippines and is typical of the family Brissopsidae in having specialised aboral tube feet in ambulacra III within the peripetalous fasciole used for funnel building. It is distinct from species of Brissopsis and Metalia in having a shield-shaped subanal fasciole in conjunction with confluent posterior petals. This species has a particularly diverse array of highly localised pedicellariae, with three distinct forms of globiferous pedicellaria (simple fistulate, fanged fistulate and fanged open-bladed), three forms of straight bladed tridentate (narrow-valved, spatulate and terminal-toothed) as well as typical spatangoid rostrate, ophicephalous and triphyllous pedicellariae. Brissopsis persica is the only species in the genus that has a shield-shaped subanal fasciole. However, this species has divergent posterior petals, simple (non-lobed) anterior aboral tube feet, enlarged tubercles along the anterior ambulacrum, no anal fasciole, and lacks both globiferous and ophicephalous pedicellariae. These findings demonstrate that this Brissopsis persica does not belong in Brissopsis but should be placed in Metalia.