The conoidean family Drilliidae Olsson, 1964 is a species-rich lineage of marine gastropods, showing a high degree of diversification in comparison to other families of Conoidea. Despite intensive molecular phylogenetic studies during the last decade that have led to notable rearrangements of conoidean systematics, the genus- and species-level taxonomy of Drilliidae has not thus far been affected and remains entirely based on shell features. In the current study we revisit species delimitation in a morphological cluster of species from the Indo-Pacific referred to as the Clavus canalicularis complex, using an integrative taxonomy approach. The species in the complex possess robust thick-walled shells typically over 15 mm in height with sculpture of prominent rounded nodules located at the whorl’s shoulder, sometimes sharp and squamiform, or producing long spines. We find that in addition to five known species, the complex comprises four new species. These are described as Clavus brianmayi n. sp. (New Caledonia), Clavus davidgilmouri n. sp. (the Philippines), Clavus andreolbrichi n. sp. (Vanuatu and New Ireland) and Clavus kirkhammetti n. sp. (Madagascar). Clavus exasperatus (Reeve, 1843), which was previously considered widely distributed in Indo-Pacific, is shown to be confined to the western Indian Ocean.

锥虫科Drilliidae Olsson（1964年）是海洋腹足纲动物的一个物种丰富的世系，与康尼纲的其他科目相比，显示出高度的多样化。尽管在过去的十年中进行了深入的分子系统发育研究，导致圆锥体系统发生了显着的重排，但到目前为止，Drilliidae属的属和种的分类没有受到影响，并且仍然完全基于壳的特征。在当前的研究中，我们重新审视了来自印度太平洋的被称为Clavus canalicularis的物种的形态学簇中的物种划界。复杂，使用综合分类法。复杂的物种具有坚固的厚壁壳，通常高度超过15毫米，在轮肩处有突出的圆形结节雕塑，有时是尖锐的鳞状，或长出长刺。我们发现，除了五个已知物种外，该复合体还包含四个新物种。这些被描述为Clavus brianmayi n。sp。（新喀里多尼亚），克拉维斯（Clavus davidgilmouri）。sp。（菲律宾），奇伟士andreolbrichi ñ。sp。（瓦努阿图和新爱尔兰）和克劳斯（Clavus kirkhammetti）。sp。（马达加斯加）。牛lav 里弗（1843年，里夫）以前被认为广泛分布在印度太平洋地区，但据显示只限于印度洋西部。