Fig. 79 in Mammals Of The Rio Juruá And The Evolutionary And Ecological Diversification Of Amazonia

Fig. 79. Histograms of means, with standard errors, of the length to width ratio of the interparietal for samples allocated by Hershkovitz (1944) to five named forms of water rats, Nectomys, from Amazonia, as well as from three 2n = 38–42 geographic samples (Río Cenepa, Amazonas, Peru´; Balta, Río Curanja, Ucayali, Peru´; and Rio Jurua´, Amazonas, Brazil). The presumptive association of each named form to diploid number class is indicated.