NPCs composing that spawngroup :

a_neriad_maiden (33%)

a_neriad_maiden (34%)

a_neriad_mistress (33%)

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

sirens_4, range=89 (-713,-646,-155)

sirens_5, range=94 (-587,-517,-209)

sirens_6, range=88 (-566,-647,-152)

sirens_48, range=99 (-640,-695,-152)

sirens_60, range=99 (-713,-662,-47)

sirens_82, range=90 (-550,-613,-72)

sirens_85, range=89 (-728,-597,-78)

sirens_101, range=75 (-594,-657,-68)

sirens_103, range=73 (-663,-665,-60)

a_siren_enchantress (50%)
a_siren_enticer (50%)

sirens_104, range=73 (-614,-665,-60)

sirens_105, range=52 (-661,-644,-62)

sirens_106, range=52 (-616,-643,-62)

sirens_142, range=73 (-682,-656,-68)

sirens_231229, range=97 (-712,-661,-47)

sirens_231269, range=2 (-639,-594,-164)

a_coldspine_seahorse (99%)
Fellspine (1%)

sirens_231274, range=51 (-615,-642,-62)

a_watery_servant (100%)
a_watery_servant (100%)

sirens_231275, range=51 (-660,-643,-61)

an_icy_servant (100%)
an_icy_servant (100%)

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

sirens_231286, range=73 (-614,-665,-60)