In zoology|lang=en terms the difference between sphaeriid and sphaeritid
is that sphaeriid is (zoology) any member of the sphaeriidae while sphaeritid is (zoology) any member of the sphaeritidae.
As nouns the difference between sphaeriid and sphaeritid
is that sphaeriid is (zoology) any member of the sphaeriidae while sphaeritid is (zoology) any member of the sphaeritidae.