Siren's Call

Enemies

 * Jellyfish
 * Beetle
 * Alloy Vulture
 * Brass Contraption
 * Greater Wisp
 * Elder Lemurian
 * Wandering Vagrant
 * Magma Worm
 * Solus Control Unit
 * Solus Probe
 * Alloy Worship Unit
 * Solus Probe


 * Overloading Worm

Newt Altars
There are several location for newt altars to spawn in Siren's Call:
 * Top of the hanging crate
 * Spike/Stalagmite in cave (there are a few including one vertical one you can jump on to access it)
 * Potentially more to be discovered.