Uronychia clapsae sp. n. was discovered in an artificial channel that drains an endorheic area from the «sandy Pampa» into the upper basin of Salado River, Buenos Aires, Argentina. This euplotid measures 56-112 μm × 42-70 μm in vivo, is oval in shape and the buccal field is enormous, occupying ca. 80% of body length. It is characterized by ha…[Leer más]