NPCs composing that spawngroup :

a_thought_leech_evoker (75%)

Chasm_Overseer (25%)

NPCs spawning around that spawngroup :
(Max range : 200)

thedeep1312246, range=125 (-71,-26,-61)

a_shrieker (34%)
a_shrieker (33%)
a_shrieker (33%)

thedeep1312146, range=197 (-52,291,-61)

a_thought_leech_evoker (50%)
a_thought_leech_evoker (50%)

thedeep1312144, range=187 (-170,268,-57)

a_thought_leech_evoker (50%)
a_thought_leech_evoker (50%)

thedeep1312143, range=179 (-146,269,-58)

thedeep1312142, range=157 (-187,223,-59)

a_thought_leech_evoker (50%)
a_thought_leech_evoker (50%)

thedeep1312141, range=102 (-179,153,-57)

a_young_thought_leech (100%)

thedeep1312140, range=79 (-144,158,-58)

a_thought_leech_evoker (50%)
a_thought_leech_evoker (50%)

thedeep1312139, range=17 (-106,87,-57)

a_thought_leech_evoker (50%)
a_thought_leech_spiriter (50%)

thedeep1312138, range=20 (-85,117,-61)

thedeep1312075, range=132 (-186,4,-57)

an_enthralled_outcast (100%)

thedeep1312062, range=129 (-82,-31,-60)

a_shrieker (100%)

thedeep1312061, range=97 (-88,1,-59)

a_shrieker (50%)
a_shrieker (50%)

thedeep1312060, range=191 (80,14,-61)

an_enthralled_outcast (100%)

thedeep1312017, range=145 (-213,18,-58)

a_thought_leech_evoc_1433248, range=157 (-153,243,-56)

a_thought_leech_evoker (100%)

The_Deep_Bosses, range=134 (0,0,0)

#The_Burrower_Beast (0%)
#Thought_Horror_Overfiend (0%)