NPCs composing that spawngroup :

##_#a_siren_seductress (100%)

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

sirens_4, range=97 (-713,-646,-155)

sirens_48, range=46 (-640,-695,-152)

#a_rampaging_ulthork (50%)
an_enthralled_bulthar (50%)

sirens_60, range=83 (-713,-662,-47)

sirens_97, range=43 (-691,-695,-46)

sirens_98, range=0 (-668,-732,-58)

#a_siren_seductress (50%)
a_siren_enchantress (50%)

sirens_99, range=94 (-581,-695,-46)

sirens_100, range=58 (-610,-733,-58)

sirens_102, range=42 (-639,-701,-58)

sirens_103, range=67 (-663,-665,-60)

sirens_104, range=86 (-614,-665,-60)

#a_siren_temptress (50%)
a_siren_enchantress (50%)

sirens_105, range=88 (-661,-644,-62)

sirens_118, range=30 (-640,-743,-164)

an_enthralled_bulthar (50%)
an_enthralled_bulthar (50%)

sirens_142, range=77 (-682,-656,-68)

sirens_143, range=62 (-727,-753,-68)

a_siren_enchantress (50%)
a_siren_priestess (50%)

sirens_145, range=30 (-638,-738,-25)

#Mistress_Latazura (80%)
#The_Fabled_Mistress_Latazura (20%)

sirens_288186, range=30 (-640,-743,-164)

##_an_enthralled_bulthar (100%)

sirens_288187, range=46 (-640,-695,-152)

##_an_enthralled_bulthar (50%)
##_an_enthralled_molkor (50%)

sirens_288195, range=97 (-713,-646,-155)

##_a_coldspine_seahorse (50%)
##_a_neriad_maiden (50%)

sirens_288206, range=77 (-682,-656,-68)

sirens_288214, range=43 (-638,-700,-55)

##_#Mistress_Latazura (100%)

sirens_288219, range=43 (-691,-695,-46)

sirens_288220, range=86 (-614,-665,-60)

##_#a_siren_temptress (50%)
##_a_siren_enchantress (50%)