Platycephalids Ambiserrula jugosa (McCulloch 1914) and Inegocia harrisii (McCulloch 1914) were described as new species based on 10 and 2 specimens, respectively, collected from the coast of Queensland, Australia by the F.I.S. Endeavour in 1910. McCulloch (1914) listed additional specimens at the end of the description, which he did not exclude from the type series. Previous authors considered the specimens, which McCulloch stated the species to have been described from, to be types of the two species, it was revealed that all 43 and 9 specimens included in these species by McCulloch are type specimens, according to the fourth edition of International Code of Zoological Nomenclature, stating “type series of a nominal taxon consists of all the specimens included by the author in the new nominal taxon” in Article 72.4.1. In I. harrisii, it was assumed that a specimen later designated as the lectotype was figured with the original description. Because its plate legend includes the words “sp. nov. Type”, the specimen is regarded to be the holotype of the species and the designation of the lectotype was unnecessary. This study newly recognizes additional 12 paratypes of A. jugosa and 5 paratypes of I. harrisii, and gives taxonomic accounts of the two species to show range extensions of intraspecific variation and distribution newly found. Also comments are given about the type status of other species taken by the Endeavour described by McCulloch in a series of five papers.

扁头动物Ambiserrula jugosa (McCulloch 1914) 和Inegocia harrisii(McCulloch 1914) 分别根据 FIS Endeavor 于 1910 年从澳大利亚昆士兰海岸采集的 10 个和 2 个标本被描述为新物种。McCulloch (1914) 在描述末尾列出了其他标本，他这样做了不排除在类型系列之外。先前的作者认为这些标本（麦卡洛克称其为描述物种的来源）是这两个物种的类型，根据第四版，麦卡洛克在这些物种中包含的所有 43 个和 9 个标本都是模式标本。 《国际动物命名法》第 72.4.1 条规定“名义分类单元的类型系列由作者在新的名义分类单元中包含的所有标本组成”。在I. harrisii中，假设后来指定为选型的标本是根据原始描述绘制的。因为它的车牌图例中包含“sp”字样。十一月 类型”，标本被视为该物种的正模，无需指定选型。这项研究新识别了A. jugosa的另外 12 个副型和I. harrisii的 5 个副型，并给出了这两个物种的分类学解释，以显示新发现的种内变异和分布的范围扩展。麦卡洛克在五篇系列论文中描述了奋进号捕获的其他物种的类型状态，还给出了评论。