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Home » Guide » Arthropods (Arthropoda) » Crustaceans (Crustacea) » Malacostracans (Malacostraca) » Marsupial Crustaceans (Peracarida) » Isopods (Isopoda) » Scutocoxifera » Seapills and allies (Sphaeromatidea) » Seapills (Sphaeromatoidea) » Typical Seapills (Sphaeromatidae) » Sphaeroma
Photo#1924991
Isopod - Sphaeroma
Copyright © 2020 Joshua Coogler

Isopod - Sphaeroma
Jacksonville , Duval County, Florida, USA
March 4, 2020
So based on a paper I just read “ The body of Sphaeroma quadridentatum lacks tubercles, easily dis­ tinguishing it from S. terebrans” i believe this to be S. quadridentata. It also has serrated uropods which seem to be a defining feature as well.
Contributed by Joshua Coogler on 16 December, 2020 - 11:41pm
Last updated 27 February, 2021 - 11:35pm

Moved
Moved from Sphaeromatidea.
… Hisserdude, 27 February, 2021 - 11:35pm

Moved
Moved from Isopods.
… Hisserdude, 13 February, 2021 - 12:21pm

 
It should be fine to put at genus
No other genus in Florida has such strongly-serrated uropods like this
… Sequoia Wrens, 27 February, 2021 - 4:31pm

Looks good for Sphaeroma
I don't know the genus in Florida very well but I think both S. quadridentatum and S. serratum both have smooth telsons. S. quadridentatum is supposed to have a pointier telson like the central isopod here but I haven't really figured out how to tell them apart.

The serrated uropod exopods should definitely make these Sphaeroma though
… Sequoia Wrens, 29 January, 2021 - 4:19pm

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