Geographic range extension of Anorthoneis dulcis Hein in Oases of Baja California Peninsula, Mexico

Abstract

We provide the first record of Anorthoneis dulcis Hein in Mexico in two Oases of the southern Baja California Peninsula, thus extending the geographic distribution of this species in North America from East (Florida) to West (Baja California Sur). The pH values observed at one of the Oases (7.1-8.9) show that A. dulcis may thrive in a wider range of pH variation than previously cited. We propose that, although records of A. dulcis are scarce it has a wide distribution, from East to West in North America, to South America as far as the Patagonia.