Dorsal kineties

描述：

Gonostomum affine (Stein, 1859) Sterki, 1878. Dorsal kineties (green arrowheads) and caudal cirri (black arrowhead). Non-flooded Petri dish soil sample collected from flood-irrigated lawn in Boise, Idaho, June 2008. Protargol (Wilbert modification). Brightfield.