NPCs composing that spawngroup :

a_coldspine_seahorse (50%)

a_swordfish (50%)

NPCs spawning around that spawngroup :
(Max range : 200)

sirens_2, range=192 (-365,-407,-174)

sirens_4, range=189 (-499,-438,-210)

sirens_5, range=15 (-390,-583,-174)

sirens_6, range=177 (-566,-647,-152)

sirens_19, range=56 (-390,-541,-142)

sirens_63, range=150 (-402,-447,-116)

sirens_66, range=191 (-544,-476,-41)

an_enthralled_bulthar (50%)
an_enthralled_molkor (50%)

sirens_75, range=106 (-501,-613,-155)

a_neriad_maiden (50%)
a_neriad_maiden (50%)

sirens_82, range=154 (-550,-613,-72)

sirens_85, range=182 (-566,-662,-47)

a_siren_enchantress (50%)
a_siren_enticer (50%)

sirens_88, range=17 (-379,-597,-171)

a_neriad_maiden (50%)
a_swordfish (50%)

sirens_118, range=128 (-406,-469,-117)

an_enthralled_bulthar (50%)
an_enthralled_bulthar (50%)

sirens_223847_takp_import_v0, range=191 (-543,-475,-41)

sirens_223877_takp_import_v0, range=16 (-389,-582,-175)

sirens_223866_takp_import_v0, range=0 (-396,-597,-177)

sirens_223860_takp_import_v0, range=18 (-378,-596,-171)

sirens_223855_takp_import_v0, range=79 (-403,-676,-177)

sirens_223861_takp_import_v0, range=189 (-498,-437,-210)

a_coldspine_sea_horse (50%)
a_servant_swordfish (50%)

sirens_223869_takp_import_v0, range=193 (-364,-406,-175)

a_siren_enticer (50%)
a_siren_seductress (50%)

sirens_a_siren_priestess94_takp_import_v0, range=180 (-565,-661,-47)

a_siren_priestess (100%)