ABSTRACT

Species in the family Capulidae (Littorinimorpha: Capuloidea) display a wide range of shell morphologies. Several species are known to live in association with other benthic invertebrates—mostly bivalves and sabellid worms, but also other gastropods—and are believed to be kleptoparasitic filter feeders that take advantage of the water current produced by the host. This peculiar trophic ecology, implying a sedentary lifestyle, has resulted in highly convergent shell forms. This is particularly true for the genus Hyalorisia Dall, 1889, which occurs in deep water in the Caribbean and Indo-West Pacific provinces, with two nominal species recognized so far. Combining morphological, ecological and molecular data, we assessed the diversity of the genus, its phylogenetic position inside the family and its association with its bivalve host, the genus Propeamussium de Gregorio, 1884 (Pectinoidea), resulting in the description of nine new cryptic species. When sympatric, species of Hyalorisia are associated with different host species, but the same species of Propeamussium may be the host of several allopatric species of Hyalorisia.

中文翻译：

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kleptoparasitic属Hyalorisia Dall，1889年（Littorinimorpha：Capulidae）的高度隐秘多样性，描述了来自印度西太平洋的9个新物种

摘要

Capulidae（Littorinimorpha：Capuloidea）科中的物种显示出多种壳形态。已知有几种物种与其他底栖无脊椎动物（主要是双壳类和sa类蠕虫，但也有其他腹足类）生活在一起，并且被认为是利用宿主产生的水流的潜伏寄生滤食性动物。这种特殊的营养生态，意味着久坐的生活方式，导致了高度融合的贝壳形式。透明质酸属尤其如此达尔（Dall），1889年，产于加勒比海和印度洋-西太平洋省的深水区，迄今已识别出两个标称物种。结合形态，生态和分子数据，我们评估了该属的多样性，其在家庭内部的系统发育位置及其与双壳类寄主，Propeamussium de Gregorio属，1884（Pectinoidea）的联系，从而描述了9个新的隐性物种。当同域，种Hyalorisia与不同宿主物种有关，但同一品种Propeamussium可以是若干种异域的主机Hyalorisia。