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Freshwater Isopods

Caecidotea sp.


Freshwater crustaceans ~3cm long. What I thought was the head is actually the rear end. The rear looks like it has antennae, as shown in photo 2. Watch a short video I took of them here:


Freshwater marsh (in a vernal pool) with lots of leaf debris in the water. Maple and white pine as well as several species of moss (including sphagnum moss) were common in this area.


Found in the same vernal pool as many copepods, fingernail clams, and snails.

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Machi 7 years ago

Thank you everyone for your nice comments!

Great series Machi,congrats on the well deserved SOTW and thanks for sharing

roemer1 7 years ago

WOW those photos are amazing! Especially considering their size! We have these guys in a creek in our backyard, and they're pretty tiny!

Oh and congrats on getting the spotting of the week. I'm kinda jealous.

CalebSteindel 7 years ago

Fascinating, congrats!

Machi 7 years ago

Wow, thank you! It is great that these little creatures can get some appreciation :)

Mark Ridgway
Mark Ridgway 7 years ago

Congrats Machi.

triggsturner 7 years ago

Congratulations Machi on your SOTW. Great images.

NateAndNature 7 years ago

D= What about my water louse? Lol Never mind, your Pictures are ten times better than mine.

AshleyT 7 years ago

Congrats Machi, this incredible close-up has been selected as Spotting of the Week!



Machi 7 years ago

Thank you for the nomination!

AshleyT 7 years ago

Your spotting has been nominated for the Spotting of the Week. The winner will be chosen by the Project Noah Rangers based on a combination of factors including: uniqueness of the shot, status of the organism (for example, rare or endangered), quality of the information provided in the habitat and description sections. There is a subjective element, of course; the spotting with the highest number of Ranger votes is chosen. Congratulations on being nominated!

Machi 7 years ago

Thank you Luis and Polilla!

LuisStevens 7 years ago

Great series and video Machi!

Spotted by

Maine, USA

Spotted on Apr 2, 2016
Submitted on Apr 11, 2016

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