121748
The atyid shrimp " Caridina malawensis " is endemic to the lake , but it is poorly known and has historically been confused with " C. nilotica " , which is not found in the lake .
 C. nilotica
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:
 C. nilotica