Beakfruit
A population of flipfruit (D. anokatokarpus) adapted further, becoming more optimized for their locomotion strategy and diet. The beakfruit made 3 improvements--the movement of its upper tentacle to a spot lower and more forward, where it could be better utilized in locomotion; the development of a primitive chitinous beak, a cornified skin growth surrounding the mouth opening which allows it to crack seeds before processing them further with its radulae; and an inwardly depressed shape to its eyespot, turning it into a pigment cup which allows it to track motion by where light levels change within the eye and therefore more easily spot predators approaching so it can quickly retract into its shell. It ranges from 10 to 15 cm in length from the back of the shell to the tip of its facial limbs. Like its ancestor, it float-walks just above the seafloor feeling around and grabbing for food, and it uses its eyes to help it tell the time of day so it can sleep at night instead of risking encountering predators it cannot see.
Like its ancestor, the beakfruit eats seeds, detritus, carcasses, biofilm, and rotting organic matter. The polyph seeds it is known to eat include those of A. okeanus, M. aquatica, M. flotatortensis, and S. podius. It breeds in the winter and carries its eggs in an “egg pouch”, a tube attached around its body inside its shell which opens near the cloaca, which serves to help ensure it does not drop and lose any of its eggs from moving too much; the egg pouch's opening is entirely concealed when the beakfruit is in a relaxed position, only being exposed if it were to stretch outwards. Hatchlings feed mostly on detritus and biofilm until they are big enough for larger meals such as seeds and carcasses. It has to deal with the same predators as its ancestor within the zone where it evolved.
