Vorst Oscar
Naturalis Biodiversity Center; PO Box 9517; 2300 RA Leiden; The Netherlands.
Zootaxa. 2024 Nov 11;5537(3):445-450. doi: 10.11646/zootaxa.5537.3.11.
A second species of the enigmatic hydrophilid genus Protistolophus Short, 2010 is described from the Cordillera Escalera in northwest Peru (Departamento de San Martín). Most specimens were collected in association with brooklets in primary forest at ca. 1300 m a.s.l. Some of the characters originally used to define the genus Protistolophus appear no longer valid after discovery of the new species. Most noteworthy is probably the absence of an apical emargination of the fifth visible ventrite, while present in P. spangleri Short, 2010, the only other know species of the genus.
2010年，肖特描述了神秘的水龟甲属（Protistolophus）的第二个物种，该物种发现于秘鲁西北部的埃斯卡莱拉山脉（圣马丁省）。大多数标本是在海拔约1300米的原始森林中的小溪流附近采集到的。在新物种被发现后，一些最初用于定义水龟甲属的特征似乎不再有效。最值得注意的可能是第五可见腹节没有顶端缺刻，而在该属唯一已知的另一个物种——2010年的斯氏水龟甲（P. spangleri）中存在这一特征。
