Structure and chemical composition of the cuticle ofCirolaua fluviatilis, Sphaeroma walked andSphaeroma terebrans
A comparative study has been made of the articular organisation of isopod wood borerSphaeroma terebrans, a foulerSphaeroma walkeri and a free living isopodCiroiana fluviatilis. The cuticle ofS. terebrans shows both structural and chemical peculiarities. InS. walkeri, the epicutiele contains ftiehsiuophilic protein and gives evidence of primary tanning. InC. fluviatilis the epicutiele is similar to that of other isopods.