Abstract Sigurdson (1991) erected the monospecific genus Murphydoris to include the species Murphydoris singaporensis. This species differed from the rest of the genera in Goniodorididae by the lack of lamellae on the rhinophores and gill branches around the anus. Since its original description, Murphydoris singaporensis has only been found in Singapore and Thailand. Recently, the paratypes of Murphydoris singaporensis were studied and compared with remaining type species of Goniodorididae, showing that the apomorphies of the genus were unclear and some undescribed species reported as Goniodoridella could belong to Murphydoris. In this study, we examined four undescribed species from the Indo-Pacific region. The internal anatomy was studied by dissections, and electron microscope photographs are included to show details of their radulae, labial cuticles and penises. One specimen was also studied under micro-computed tomography. In addition, mitochondrial and nuclear partial sequences of the species were obtained. As a result, we describe in detail four new species of Murphydoris: M. adusta sp. nov., M. cobbi sp. nov., M. maracabranchia sp. nov. and M. puncticulata sp. nov. We additionally present the first phylogenetic tree that includes sequences of Murphydoris.

中文翻译：

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重新发现被忽视的墨菲多利斯属（Nudibranchia: Goniodorididae）：第一个系统发育和四个新物种的添加

摘要 Sigurdson (1991) 建立了单特异性属 Murphydoris 以包括物种 Murphydoris singaporensis。该物种与 Goniodorididae 中其他属的不同之处在于在肛门周围的鼻孔和鳃分支上缺乏薄片。自最初的描述以来，新加坡墨菲多利斯只在新加坡和泰国被发现。最近，对新加坡墨菲龙的副型进行了研究，并与Goniodorididae的其余类型种进行了比较，表明该属的无形性尚不清楚，一些未描述的被报道为Goniodoridella的种可能属于墨菲多利斯。在这项研究中，我们检查了来自印度太平洋地区的四种未描述的物种。通过解剖研究内部解剖结构，包括电子显微镜照片，以显示它们的唇齿、阴唇角质层和阴茎的细节。还在微型计算机断层扫描下研究了一个样本。此外，还获得了该物种的线粒体和细胞核部分序列。因此，我们详细描述了墨菲多利斯的四种新物种：M. adusta sp。11 月，M. cobbi sp。十一月，M. maracabranchia sp。十一月 和 M. puncticulata sp。十一月 我们还提出了第一个包含墨菲多利斯序列的系统发育树。十一月 我们还提出了第一个包含墨菲多利斯序列的系统发育树。十一月 我们还提出了第一个包含墨菲多利斯序列的系统发育树。