Selaginella and Desfontainia, are what kind of item?
Selaginella Selaginella is the sole genus of primitive vascular plants in the family Selaginellaceae, the spikemosses or lesser clubmosses.
Pelagic cod The pelagic cod ("Melanonus gracilis") is a small deepwater fish found in the Southern Ocean. It is one of only two species currently classified in the family Melanonidae, the other being the arrowtail, "Melanonus zugmayeri".