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Three new species of frogs of the genus Pristimantis (Anura, Strabomantidae) with a redefinition of the P. lacrimosus species group
ZooKeys ( IF 1.3 ) Pub Date : 2020-11-16 , DOI: 10.3897/zookeys.993.53559
Santiago R. Ron , Julio Carrión , Marcel A. Caminer , Yerka Sagredo , María J. Navarrete , Jhael A. Ortega , Andrea Varela-Jaramillo , Gabriela A. Maldonado-Castro , Claudia Terán

A new phylogeny for the Pristimantis lacrimosus species group is presented, its species content reviewed, and three new species described from the eastern slopes of the Ecuadorian Andes. Our phylogeny includes, for the first time, samples of P. aureolineatus, P. bromeliaceus, and P. lacrimosus. The morphology of hyperdistal subarticular tubercles is also assessed among 21 species of Pristimantis. The P. lacrimosus species group is composed of 36 species distributed in the Chocó, Guiana, and Amazon regions of tropical South America with a single species reaching Central America. Ancestral area reconstruction indicates that, despite its high diversity in the Amazon region, the P. lacrimosus group originated in the Pacific basin, Chocó region of Ecuador and Colombia. Pristimantis amaguanaesp. nov. is most closely related to P. bromeliaceus. It differs from P. bromeliaceus by being smaller, having transversal dark bands in the hindlimbs (absent or faint in P. bromeliaceus) and the absence of discoidal fold (present in P. bromeliaceus). Pristimantis nankintssp. nov. and P. romeroaesp. nov. are part of a clade of predominantly light-green frogs that includes P. acuminatus, P. enigmaticus, P. limoncochensis, and P. omeviridis. Pristimantis nankintssp. nov. and P. romeroaesp. nov. can be distinguished from all of them by the presence of a dark dorsolateral stripe that borders a light green band on a green background. Hyperdistal tubercles are present in all examined species of the P. lacrimosus species group and its sister clade. Species with hyperdistal tubercles are characterized by having relatively long terminal phalanges and narrow T-shaped expansion at the end of the terminal phalange. We discuss the phylogenetic distribution of these characters and their potential diagnostic significance.

中文翻译:

重新定义了P. lacrimosus物种组的Pristimantis属(Anura,Strabomantidae)的三种新青蛙

提出了一种新的系统,用于Pristimantis lacrimosus物种组,审查了其物种含量,并从厄瓜多尔安第斯山脉的东坡描述了三个新物种。我们的系统发育首次包括金黄色葡萄球菌,菠萝蜜和泪球菌的样品。还对21种Pristimantis物种中的远侧关节下结节的形态进行了评估。P. lacrimosus物种组由分布在热带南美的乔科,圭亚那和亚马逊地区的36个物种组成,其中一个物种到达中美洲。祖先地区的重建表明,尽管亚马逊河地区的多样性很高,但拉克莫斯群仍起源于太平洋盆地,厄瓜多尔的乔科地区和哥伦比亚。Pristimantis amaguanaesp。十一月 与凤梨假单胞菌关系最密切。它与P. bromeliaceus的区别在于较小,后肢具有横向暗带(P. bromeliaceus中不存在或微弱),并且没有盘状褶皱(P. bromeliaceus中存在)。Pristimantis nankintssp。十一月 和罗氏沼虾 十一月 是主要为浅绿色青蛙进化枝的一部分,包括P. acuminatus,P。enigmaticus,P。limoncochensis和P. omeviridis。Pristimantis nankintssp。十一月 和罗氏沼虾 十一月 可以通过在绿色背景上与浅绿色带接壤的深色背侧条纹将它们与所有其他特征区分开。远侧结节存在于P. lacrimosus物种组及其姐妹进化枝的所有检查物种中。带有远侧结节的物种的特征是末端指骨相对较长,并且在末端指骨的末端具有狭窄的T形扩张。我们讨论了这些字符的系统发育分布及其潜在的诊断意义。
更新日期:2020-11-17
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