Lago-Barcia Domingo, Silva Marcos Santos, Carbayo Fernando
Laboratório de Ecologia e Evolução, Escola de Artes, Ciências e Humanidades (EACH), Universidade de São Paulo (USP), Av. Arlindo Bettio, 1000, São Paulo, SP, 03828-000, Brazil.
Departamento de Zoologia, Instituto de Biociências, Universidade de São Paulo (USP), Rua do Matão, Tv. 14, 321, São Paulo, SP, 05508-090, Brazil.
Zookeys. 2021 Feb 11;1016:1-48. doi: 10.3897/zookeys.1016.59617. eCollection 2021.
Living representatives of the Neotropical genus Graff, 1896 (Geoplaninae, Tricladida, Platyhelminthes) are easily recognized by the typical shape of the head which is laterally expanded, rolled-up, and ventrally provided with two glandular cushions. In this study, the morphology and phylogeny (cytochrome C oxidase subunit I gene) of several species of land planarians are taxonomically investigated. Four of the six species studied are new to science, namely: Silva & Carbayo, , Lago-Barcia & Carbayo, , Lago-Barcia & Carbayo, , and Lago-Barcia & Carbayo, The species and deviate from the usual body shape pattern in that the head does not present lateral expansions nor glandular cushions, becoming indistinguishable from its sister genus . (Schultze & Müller, 1857) is also redescribed from a newly collected specimen and was discovered to be a member of . Graff (1899) also studied another specimen that was considered to be conspecific with ; however, in this new it is concluded that it is not conspecific but rather a new species. The name Lago-Barcia & Carbayo, is suggested for Graff's specimen.
新热带属Graff（1896年）（地理扁虫亚科，三肠目，扁形动物门）的现存代表很容易通过其典型的头部形状识别，头部横向扩展、卷曲，腹面有两个腺垫。在本研究中，对几种陆生扁虫的形态学和系统发育（细胞色素C氧化酶亚基I基因）进行了分类学研究。所研究的六个物种中有四个是科学上新发现的，即：Silva & Carbayo, 、Lago-Barcia & Carbayo, 、Lago-Barcia & Carbayo, 以及Lago-Barcia & Carbayo, 。物种 和 偏离了通常的体型模式，其头部没有横向扩展，也没有腺垫，变得与其姐妹属 难以区分。 （舒尔茨和米勒，1857年）也根据新采集的标本进行了重新描述，并被发现是 的一个成员。Graff（1899年）还研究了另一个被认为与 同种的标本；然而，在这项新研究中得出的结论是，它并非同种，而是一个新物种。建议将Graff标本命名为Lago-Barcia & Carbayo, 。
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