Very little is known about Cooper’s black caecilian. This species reaches a total length of 230 mm and is limbless with very small eyes. It is similar in appearance to an earthworm and is only found in a range of 20 km sq. (an area a third the size of Manhattan Island), spending most of its life in underground burrows. It is not common, and nothing is known of its population trend in the wild. The main threat is habitat degradation, due to fire and invasive species. It may also be inherently at risk because of its small range, rendering it vulnerable to factors such as ecological disasters and climate change.