Figure 2 from: Torres MV, Collins PA, Giri F (2014) Morphological variation of freshwater crabs Zilchiopsis collastinensis and Trichodactylus borellianus (Decapoda, Trichodactylidae) among localities from the middle Paraná River basin during different hydrological periods. In: Wehrtmann IS, Bauer RT (Eds) Proceedings of the Summer Meeting of the Crustacean Society and the Latin American Association of Carcinology, Costa Rica, July 2013. ZooKeys 457: 171-186. https://doi.org/10.3897/zookeys.457.6726

Figure 2 - Different phases of the hydrological regime according to hydrological level. Paraná River (black line) and Salado River (gray line). The circles indicate the water level in which the crabs were collected from each river (falling and rising water).