Litorincolus acrilluda
This species looks similar to its ancestor, Oculolophus caecus, but contains a few differences. It has specialized itself for life on the shorelines of Zone 31, where it is always moist and where water is always available, without competition. It feeds on visible polyph matter here, such as any Aruraherba caesicoles growing near the water and large clumps of Stratunato virenparvus (Carpefloat) and Primophytorus ovalus (Ovalgae) that wash up on shore.
The crest and echolocation system are raised by a stiff protrusion of muscle and skin, which helps to keep higher-splashing water from getting into and jamming up the system. Oculolophus acrilluda is slightly larger than its ancestor at twenty-five centimeters (25 cm) in length to travel across sediment more easily. It is a rather poor swimmer, which is why it sticks to beaches and shores. Although the diffusion in its skin does allow for oxygen to go through, Oculolophus acrilluda cannot control which direction it is carried and may wash up somewhere else.
Oculolophus acrilluda is fully mature six (6) weeks after leaving the egg. Both sexes are nearly identical exept for their internal gonad structure, and casually forage without fear of predators. Any mature individuals will attempt to mate with other individuals they come across in hope that reproduction is successful. Once fertilized, females will lay their eggs in the nearest uneroded dirt, which shows that water does not often reach there. Twenty-five (25) eggs are laid in total for each fertilization, but young can be swept away in river currents and they are left to fend for themselves with no apparent social structure.