A new genus and species of Hexabothriidae Price, 1942 is described from specimens infecting the gill of the numbfish Narcine entemedor Jordan and Starks from the Pacific coast of Mexico. In addition to the new taxon described here, species of 8 genera also display symmetrical haptors and have eggs with two polar filaments. However, they differ in the combination of the following features: distal portion of the male copulatory organ tubular, unarmed and proximally dilated confining an internal coiled duct, as well as dorsal origin of haptoral appendix. Based on molecular data derived from 3 loci, the mitochondrial Cytochrome C oxidase subunit 1 as well as the nuclear ribosomal 18S and 28S, the new species was found nested within Hexabothriidae together with the other 4 genera with representatives in GenBank. This is the first species of Hexabothriidae reported from a species of Narcinidae.

从感染麻木鱼Narcine tem的标本中描述了1942年Hexabothriidae Price的新属和种来自墨西哥太平洋海岸的约旦和斯塔克斯。除此处描述的新分类单元外，8个属的种还显示对称的，并带有带有两个极丝的卵。但是，它们在以下特征的组合方面有所不同：雄性交配器官的远端部分，无武装和近端扩张，限制了内部盘管，以及后附肢的背侧起源。根据来自3个基因座，线粒体细胞色素C氧化酶亚基1和核糖体18S和28S的分子数据，发现新物种与其他4个属一起嵌套在Hexabothriidae中，并在GenBank中有代表。这是一种自Narcinidae物种报道的Hexabothriidae物种。