123671
An extinction claimed to have occurred after the flooding is that of the Lake Pedder planarian ( " Romankenkius pedderensis " ) , an endemic flatworm .
 Lake Pedder planarian, flatworm
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 Lake Pedder planarian, flatworm