NPCs composing that spawngroup :

an_enthralled_bulthar (50%)

an_enthralled_ulthork (50%)

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

sirens_an_enthralled_bulthar6, range=65 (-16,-40,3)

an_enthralled_bulthar (100%)

sirens_a_siren_seductress22, range=47 (36,-105,-80)

a_siren_seductress (100%)

sirens_a_siren_enticer8, range=67 (113,-44,-100)

sirens_a_servant_swordfish9, range=94 (-19,8,-13)

sirens_223842, range=13 (46,-46,5)

sirens_223844, range=32 (75,-42,-150)

sirens_223851, range=37 (84,-59,-149)

sirens_223857, range=24 (71,-61,-152)

a_servant_manatee (50%)
a_servant_walrus (50%)

sirens_223869, range=73 (24,11,-135)