In Lake Tanganyika the bagrid catfish Phyllonemus typus is a biparental mou
thbrooder, the first such record among catfishes. Eggs and yolk-sac larvae
are mouthbrooded by either or both parents, and following yolk-sac absorpti
on, young are released temporarily from the mouth to feed beneath rocks whi
ch bring guarded by both parents. (C) 2000 The Fisheries Society of the Bri
tish Isles.