Mendes Cecili B, Delaney Paul, Turbeville James M, Hiebert Terra, Maslakova Svetlana
Laboratório de Diversidade Genômica, Departamento de Genética e Biologia Evolutiva, Instituto de Biociências, Universidade de São Paulo, SP, Brazil University of Oregon Charleston United States of America.
Oregon Institute of Marine Biology, University of Oregon, Charleston, OR, USA Universidade de São Paulo São Paulo Brazil.
Zookeys. 2021 Apr 14;1031:1-17. doi: 10.3897/zookeys.1031.59361. eCollection 2021.
Stimpson, 1857, a barnacle predator, is one of the most common and conspicuous intertidal nemerteans found along the West Coast of North America from Alaska to California, but it is currently referred to by the wrong name. Briefly described without designation of type material or illustrations, the species was synonymized with the Atlantic look-alike, (Johnston, 1837) by Coe. Here we present morphological and molecular evidence that is distinct from . The two species exhibit differences in color of live specimens and egg size and are clearly differentiated with species delimitation analyses based on sequences of the partial regions of the 16S rRNA and cytochrome oxidase subunit I genes. In order to improve nomenclatural stability, we re-describe based on specimens from the southern coast of Oregon and discuss which species should be the type species of the genus. was one of the two species originally included in the genus Stimpson, 1857, but subsequent synonymization of with resulted in acceptance of the Atlantic species, , as the type species of the genus. We resurrect Stimpson, 1857 and following Corrêa's designation, this should be the type species of the genus .
1857年的斯廷普森（一种藤壶捕食者）是在北美洲西海岸从阿拉斯加至加利福尼亚发现的最常见且最引人注目的潮间带纽虫之一，但它目前被错误命名。该物种在未指定模式标本或附图的情况下被简要描述，随后被科伊认定为与大西洋类似物种（约翰斯顿，1837年）同义。在此，我们提供形态学和分子证据表明斯廷普森与该大西洋类似物种不同。这两个物种在活体标本颜色和卵大小方面存在差异，并且通过基于16S rRNA和细胞色素氧化酶亚基I基因部分区域序列的物种界定分析可明显区分。为提高命名稳定性，我们基于俄勒冈州南部海岸的标本重新描述斯廷普森，并讨论哪个物种应作为该属的模式种。斯廷普森是1857年最初归入该属的两个物种之一，但随后斯廷普森与该大西洋类似物种的同义认定导致接受大西洋物种作为该属的模式种。我们恢复使用1857年的斯廷普森，按照科雷亚的指定，这应是该属的模式种。
