Eschmeyer nexus
Eschmeyer nexus is a species of fish known only from the Pacific Ocean from near Fiji where it is found at depths of from. It is a very small fish, growing to a length of SL. This species is the only known member of its family, the Eschmeyeridae, also termed cofishes, which was established by Mandritsa in 2001.
A recent study placed the waspfishes into an expanded stonefish clade because all of these fish have a lachrymal saber that can project a switch-blade-like mechanism out from underneath their eye.