Nappo Andrea, Rey Xabier, Pellegrini Daniel, Bonomolo Giuseppe, Crocetta Fabio
Via S'Arrulloni, 25, I-09045 Quartu Sant'Elena, Italy.
Zootaxa. 2018 Mar 11;4392(3):567-587. doi: 10.11646/zootaxa.4392.3.7.
The family Drilliidae includes approximately 30 genera and 500 recent species. Among them, the genus Conopleura includes three recent species and shows a disjunct distribution in the central Indo-Pacific and the temperate northern Atlantic (Mediterranean Sea). Here, we review the genus, redescribe it, and investigate the validity of its accepted taxa by shell morphology and geometric morphometry. Conopleura striata and C. latiaxisa are considered as valid species. Their distribution has been enlarged to Taiwan and India for C. striata, and to Japan for C. latiaxisa. On the contrary, some discrepancies highlighted in the generic and familiar attribution of the Mediterranean species C. aliena suggested that it was established on abnormal shells of Tritia lima, a taxon of which C. aliena is considered a junior subjective synonym. This confutes the disjunct distribution of Conopleura. Based on a wide literature and material search on abnormalities in gastropods, we highlight the occurrence of a recurring aberration (here defined "Conopleura-like") in gastropod shells that already led to the incorrect establishment of new taxa since early scientific observations.
钻螺科包含约30个属和500个现存物种。其中，锥螺属包含三个现存物种，在印度-太平洋中部和温带北大西洋（地中海）呈间断分布。在此，我们对该属进行综述，重新描述它，并通过壳形态和几何形态测量学研究其公认分类单元的有效性。细纹锥螺和宽轴锥螺被视为有效物种。细纹锥螺的分布范围已扩大到台湾和印度，宽轴锥螺的分布范围已扩大到日本。相反，地中海物种异形锥螺在属和种的归属上存在一些差异，这表明它是基于利马三齿螺的异常壳建立的，异形锥螺被认为是该分类单元的次主观同物异名。这驳斥了锥螺属的间断分布。基于对腹足纲异常情况的广泛文献和材料搜索，我们强调了腹足纲贝壳中反复出现的一种畸变（这里定义为“类锥螺型”）的出现，自早期科学观察以来，这种畸变已导致新分类单元的错误建立。
