NPCs composing that spawngroup :

a_coldspine_sea_horse (34%)

a_neriad_maiden (33%)

a_siren_seductress (33%)

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

sirens_15, range=99 (-865,-604,-175)

sirens_16, range=1 (-888,-508,-176)

sirens_78, range=84 (-887,-591,-179)

sirens_89, range=33 (-855,-516,-180)

a_swordfish (50%)
a_swordfish (50%)

sirens_90, range=89 (-865,-420,-181)

sirens_223839_takp_import_v0, range=98 (-864,-603,-175)

an_enthralled_molkor (50%)
a_servant_swordfish (50%)

sirens_223840_takp_import_v0, range=83 (-886,-590,-180)

sirens_223863_takp_import_v0, range=86 (-890,-421,-179)

sirens_223845_takp_import_v0, range=90 (-864,-419,-182)