NPCs composing that spawngroup :

##_a_coldspine_seahorse (70%)

##_a_swordfish (30%)

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

sirens_1, range=0 (-335,-303,-174)

sirens_3, range=95 (-404,-369,-176)

a_coldspine_seahorse (50%)
a_neriad_maiden (50%)

sirens_77, range=92 (-311,-214,-167)

a_neriad_mistress (50%)
a_neriad_mistress (50%)

sirens_79, range=75 (-380,-243,-170)

sirens_288195, range=95 (-404,-369,-176)

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

sirens_288198, range=75 (-380,-243,-170)

##_a_coldspine_seahorse (100%)

sirens_288200, range=92 (-311,-214,-167)

##_a_neriad_mistress (60%)
##_a_neriad_weaver (40%)