NPCs composing that spawngroup :

a_cauldron_hammerhead (90%)

a_ferocious_hammerhead (10%)

NPCs spawning around that spawngroup :
(Max range : 100)

kedge_a_stingtooth_piranha2, range=45 (-176,-49,85)

a_stingtooth_piranha (100%)

kedge_a_cerulean_sailfin3, range=65 (-90,8,-22)

kedge sailfins, range=70 (-64,-65,11)

kedge_a_stiletto_fang_piranha94, range=43 (-166,-18,85)

kedge_a_soothebrine_seahorse45, range=60 (-71,-46,21)

kedge_a_bull_shark9, range=62 (-113,-103,-50)

a_bull_shark (95%)
a_frenzied_bull_shark (5%)

kedge_222479, range=47 (-177,-31,95)

kedge Seahorse Patriarch, range=30 (-143,-71,13)

kedge piranha or sailfin, range=41 (-166,-66,13)