NPCs composing that spawngroup :

a_cauldron_hammerhead (80%)

a_ferocious_hammerhead (20%)

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

kedge_41, range=89 (-164,-105,-53)

a_cerulean_sailfin (50%)
a_cobalt_sailfin (50%)

kedge_37, range=45 (-174,-33,17)

a_soothebrine_seahorse (50%)
a_spinereef_seahorse (50%)

kedge_32, range=95 (-259,-121,-123)

a_cobalt_sailfin (100%)

kedge_3, range=41 (-178,-32,95)

kedge_50, range=54 (-167,-19,95)

a_stiletto_fang_piranha (50%)
a_stiletto_tooth_piranha (50%)

kedge_51, range=43 (-176,-34,118)

a_stiletto_tooth_piranha (50%)
a_stiletto_tooth_piranha (50%)

kedge_65, range=90 (-164,-106,8)

an_emerald_sailfin (50%)
a_crimson_sailfin (50%)

kedge_64, range=44 (-177,-50,90)

an_emerald_sailfin (50%)
a_cerulean_sailfin (50%)

kedge_61, range=88 (-131,-37,99)

a_cobalt_sailfin (50%)
a_crimson_sailfin (50%)

kedge_59, range=87 (-133,-46,15)

a_squallsurge_seahorse (100%)

kedge_58, range=40 (-249,-61,-103)

kedge_54825, range=3 (-222,-33,5)