portrait

Description:

Goniomonas (go-knee-owe-moan-ass) is a small cryptomonad flagellate. Typically flattened, with two flagella (not visible here) emerging from a pocket located near one of the anterior corners of the cell. The refractile region is a band of extrusomes. Phase contrast. Material from Nymph Creek and Nymph Lake, thermal sites within Yellowstone National Park, photograph by Kathy Sheehan and David Patterson.