Scientific name : Pterapogon kauderni
Family : Apogonidae
Size : Up to 7 cm
Distribution : Indonesia sea between Banggai island and Sulawesi island
Biology : During reproduction, it is the female that courts the male by swimming around him. The male fertilises the egg and then holds the eggs in his mouth for 25 days. During the incubation period, the male stops feeding.
To protect itself, it lives between the long spines of sea urchins.