NPCs composing that spawngroup :

a_siren_templar (50%)

a_siren_templar (50%)

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

sirens_1, range=66 (83,-60,-146)

sirens_19, range=59 (46,-47,5)

sirens_23, range=47 (47,-60,5)

sirens_27, range=93 (102,-40,-135)

a_siren_myrmidon (50%)
a_siren_myrmidon (50%)

sirens_28, range=96 (104,-175,-135)

sirens_35, range=25 (33,-81,-135)

sirens_36, range=80 (34,-26,-135)

sirens_38, range=23 (28,-129,-135)

a_siren_beguiler (100%)

sirens_44, range=99 (-63,-100,3)

sirens_57, range=93 (128,-88,-149)

a_neriad_mistress (100%)

sirens_70, range=94 (-54,-78,-133)

sirens_71, range=87 (119,-78,-153)

a_neriad_mistress (50%)
a_neriad_mistress (50%)

sirens_73, range=68 (65,-44,-148)

sirens_74, range=81 (-27,-54,-157)

a_neriad_mistress (100%)
a_neriad_mistress (100%)

sirens_109, range=96 (115,-52,-100)

sirens_110, range=88 (115,-67,-100)

sirens_118, range=96 (132,-97,3)

an_enthralled_bulthar (50%)
an_enthralled_bulthar (50%)

sirens_119, range=74 (102,-71,-135)

sirens_120, range=91 (120,-141,-54)

a_siren_myrmidon (50%)
a_siren_templar (50%)

sirens_122, range=61 (87,-140,-54)

sirens_127, range=92 (-49,-143,-117)

sirens_136, range=95 (-58,-121,-110)

sirens_137, range=74 (7,-175,-135)

a_servant_sea_elepha_190188, range=57 (71,-61,-148)

a_coldspine_sea_hors_190201, range=74 (75,-42,-149)

a_coldspine_seahorse (50%)
a_swordfish (50%)

a_servant_swordfish_190210, range=92 (54,-15,-19)

a_swordfish (100%)

sirens_112963, range=52 (29,-54,-135)

#Faleniel_of_Darkwater (100%)

sirens_231252, range=57 (71,-61,-152)

a_servant_manatee (100%)

sirens_231256, range=92 (54,-15,-19)

a_servant_swordfish (100%)

sirens_231263, range=74 (75,-42,-150)

sirens_231264, range=48 (47,-59,5)

sirens_231269, range=93 (128,-88,-148)

a_coldspine_seahorse (99%)
Fellspine (1%)

sirens_231277, range=81 (34,-25,-135)

sirens_231278, range=1 (36,-105,-80)

a_siren_seductress (100%)

sirens_231279, range=93 (-53,-77,-133)

#shimmering_sea_spirit (10%)
an_icy_servant (90%)