NPCs composing that spawngroup :

a_siren_enchantress (100%)

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

sirens_3, range=75 (-773,-617,-155)

a_coldspine_seahorse (50%)
a_neriad_maiden (50%)

sirens_4, range=15 (-713,-646,-155)

sirens_7, range=97 (-639,-596,-176)

sirens_48, range=79 (-640,-695,-152)

sirens_60, range=1 (-713,-662,-47)

sirens_85, range=65 (-728,-597,-78)

a_siren_enchantress (50%)
a_siren_enticer (50%)

sirens_97, range=39 (-691,-695,-46)

sirens_98, range=83 (-668,-732,-58)

sirens_102, range=83 (-639,-701,-58)

sirens_103, range=49 (-663,-665,-60)

a_siren_enchantress (50%)
a_siren_enticer (50%)

sirens_104, range=98 (-614,-665,-60)

sirens_105, range=53 (-661,-644,-62)

sirens_106, range=97 (-616,-643,-62)

sirens_142, range=30 (-682,-656,-68)

sirens_143, range=93 (-727,-753,-68)

a_siren_enchantress (50%)
a_siren_priestess (50%)

sirens_231269, range=99 (-639,-594,-164)

a_coldspine_seahorse (99%)
Fellspine (1%)

sirens_231274, range=98 (-615,-642,-62)

a_watery_servant (100%)
a_watery_servant (100%)

sirens_231275, range=55 (-660,-643,-61)

an_icy_servant (100%)

sirens_231277, range=68 (-644,-664,-60)

sirens_231286, range=98 (-614,-665,-60)