Cyclostrema

Cyclostrema cancellatum, copyright Bailey-Matthews National Shell Museum.

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 1818 BR05 [incl. Pseudoliotina Cossmann 1925 KC60]
    |  i. s.: C. baldridgae Bartsch 1911 O27
    |         C. basistriatum Jeffreys in Friele 1873 [=C. basistriata; incl. C. peterseni Friele 1876] N79
    |         C. diegensis Bartsch 1907 O27
    |         C. helicoides H86
    |         C. miranda Bartsch 1911 O27
    |         C. nitens N79
    |         ‘Liotia’ sensuyi Vidal 1921 [=*Pseudoliotina sensuyi] KC60
    |         C. serpuloides N79
    |         C. trochoides Jeffreys in Friele 1875 N79
    |–*C. (Cyclostrema) cancellatum Marryat 1818 KC60
    `–C. (Munditia Finlay 1927) P61
         |–C. (*M.) tryphenensis (Powell 1925) [=Liotina tryphenensis] P61
         |–C. (M.) anomala Powell 1940 P61
         |–C. (M.) aupouria Powell 1937 P61
         |–‘Munditia’ australis [=Liotia australis] F27
         |–C. (M.) delicatula Powell 1940 P61
         |–C. (M.) echinata Powell 1937 P61
         |–C. (M.) manawatawhia Powell 1937 P61
         |–C. (M.) owengaensis Powell 1933 P61
         |–C. (M.) serrata (Suter 1908) P61 [=Liotia serrata F27, Angaria serrata F27]
         |–‘Munditia’ subquadrata [=Liotia subquadrata] F27
         |–C. (M.) suteri (Mestayer 1919) P61 [=Liotia suteri F27]
         `–‘Munditia’ tasmanica [=Liotia tasmanica] F27

*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.

[F27] Finlay, H. J. 1927. A further commentary on New Zealand molluscan systematics. Transactions and Proceedings of the New Zealand Institute 57: 320–485.

[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.

[J64] Jeffreys, J. G. 1864. The Upper Tertiary fossils at Uddevalla, in Sweden. Report of the British Association for the Advancement of Science 33 (Notices and Abstracts): 73–79.

[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).

[P61] Powell, A. W. B. 1961. Shells of New Zealand: An illustrated handbook 4th ed. Whitcombe and Tombs Limited: Christchurch.

Leave a comment

Your email address will not be published. Required fields are marked *