
Belongs within: Liotiidae.
Cyclostrema is a circum-tropical genus of marine gastropods with a depressed or lenticular shell ornamented by axial varices (Knight et al. 1960).
Cyclostrema Marryatt 1818BR05 [incl. Pseudoliotina Cossmann 1925KC60]
|--*C. cancellatum Marryat 1818KC60
|--C. baldridgae Bartsch 1911O27
|--C. basistriatum Jeffreys in Friele 1873 [=C. basistriata; incl. C. peterseni Friele 1876]N79
|--C. diegensis Bartsch 1907O27
|--C. helicoidesH86
|--C. miranda Bartsch 1911O27
|--C. nitensN79
|--‘Liotia’ sensuyi Vidal 1921 [=*Pseudoliotina sensuyi]KC60
|--C. serpuloidesN79
`--C. trochoides Jeffreys in Friele 1875N79
*Type species of generic name indicated
References
[BR05] Bouchet, P., & J.-P. Rocroi. 2005. Classification and nomenclator of gastropod families. Malacologia 47 (1–2): 1–397.
[H86] Hutton, F. W. 1886. The Mollusca of the Pareora and Oamaru systems of New Zealand. Proceedings of the Linnean Society of New South Wales, series 2, 1 (1): 205–237.
[KC60] Knight, J. B., L. R. Cox, A. M. Keen, R. L. Batten, E. L. Yochelson & R. Robertson. 1960. Gastropoda: systematic descriptions. In: Moore, R. C. (ed.) Treatise on Invertebrate Paleontology pt I. Mollusca 1: Mollusca—General Features, Scaphopoda, Amphineura, Monoplacophora, Gastropoda—General Features, Archaeogastropoda and some (mainly Paleozoic) Caenogastropoda and Opisthobranchia pp. I169–I331. Geological Society of America, and University of Kansas Press.
[N79] Norman, A. M. 1879. The Mollusca of the fiords near Bergen, Norway. Journal of Conchology 2: 8–77.
[O27] Oldroyd, I. S. 1927. The Marine Shells of the West Coast of North America vol. 2 pt 3. Stanford University Press: Stanford University (California).