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| *mature larvae measures up to 3/4 inch in length *have 2 or 3 tails *tiny hairs growing on the inner of the front legs help to filter food into their mouth *have a slender antennae 
 | *measures up to 3/4 and inch in length *plate like gills are found on the abdominal section *colors range from dark brown to yellow, and you can find bands of yellow and brown on their legs *can be found clinging to rocks *eat algae and other organic material | *measures up to 1 inch in length *3 tails *curved tusks that protrude from the head *unnoticeable dorsal gills that are found on the abdominal segments *can be found burrowing in in sand rivers or ponds | 
|  | Water Penny |  |  |  |  |  |  |