Studies in Speciation

Kahla Ulno is studying the creatures in the Caves. She has asked for your help in obtaining a number of samples to further study. However, Kahla is curiously unspecific in her request for species. She asks you to gather:
#Four cave spider bodies
#Four cave serpent bodies
#Four cave bat bodies
Any spider in the zone will satisfy her request (white spiderlings at the entry bells, white spiders on the first level underneath the forge and armorer gnolls, and albino arachnids on the upper level).
Similarly, either type of bat found in the caves will work (shale bats on the first floor near the dustpaw tent, or terra bats on the upper level near the gnoll tents.
However, when Kahla says cave serpents, she really means cave serpents found on the first and second levels. Snakes like the pale adders and albino pythons may be considered "serpents" by some, but not by Kahla, and they do not work.
With all twelve specimens collected, return to Kahla Ulno for your reward.
== Rewards ==
*At least 
*One of the Following:
**torn backpack
**a wooden pet cage