NPCs composing that spawngroup :

a_siren_beguiler (25%)

a_siren_myrmidon (25%)

a_siren_myrmidon (25%)

a_siren_templar (25%)

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

sirens_19, range=83 (46,-47,5)

sirens_23, range=96 (47,-60,5)

sirens_24, range=33 (74,20,3)

sirens_25, range=32 (77,33,3)

an_enthralled_molkor (100%)

sirens_27, range=95 (102,-40,-135)

sirens_36, range=62 (34,-26,-135)

sirens_37, range=32 (24,11,-135)

sirens_44, range=87 (100,104,2)

sirens_47, range=29 (19,20,-20)

a_coldspine_seahorse (50%)
a_swordfish (50%)

sirens_73, range=82 (65,-44,-148)

sirens_123, range=55 (100,28,-54)

a_siren_beguiler (50%)
a_siren_myrmidon (50%)

sirens_124, range=99 (143,18,-54)

sirens_125, range=9 (44,27,-54)

sirens_128, range=48 (4,62,-135)

sirens_129, range=80 (-34,53,-125)

sirens_130, range=88 (-43,32,-117)

a_siren_myrmidon (50%)
a_siren_templar (50%)

a_coldspine_sea_hors_190201, range=83 (75,-42,-149)

a_coldspine_seahorse (50%)
a_swordfish (50%)

a_servant_swordfish_190209, range=17 (53,20,-16)

a_swordfish (100%)

a_servant_swordfish_190210, range=51 (54,-15,-19)

a_swordfish (100%)

sirens_112963, range=91 (29,-54,-135)

#Faleniel_of_Darkwater (100%)

sirens_231256, range=69 (-19,8,-13)

sirens_231263, range=83 (75,-42,-150)

sirens_231264, range=95 (47,-59,5)

sirens_231277, range=61 (34,-25,-135)

sirens_231278, range=48 (4,62,-135)

a_siren_seductress (100%)