Macoma

White-sand macoma Macoma secta, photographed by Jan Delsing.

Belongs within: Tellinoidea.

Macoma is a cosmopolitan genus of bivalves with an inaequilateral, mostly thin shell with a deciduous periostracum and a slightly twisted posterior end.

<==Macoma Leach 1819 [Macominae] F26
    |--M. balthica T95
    |    |--M. b. balthica TW07
    |    `--M. b. rubra (da Costa 1778) TW07
    |--M. calcarea CS77
    |--M. candida (Lamarck 1818) [=Psammotoea candida] H09
    |--M. edentula [=Tellina edentula] C64
    |--M. edgari [=Tellina edgari] F26
    |--M. eugonia [=Tellina eugonia] F26
    |--M. expansa C64
    |--M. fusca C64
    |--M. gaimardi [=Tellina gaimardi] F26
    |--M. huttoni [=Tellina huttoni; incl. T. huttoni var. sterrha] F26
    |--M. incongrua XZ10
    |--M. indentata Carpenter 1864 C64
    |--M. inequivalvis (Sowerby 1867) [=Tellina inequivalvis] H09
    |--M. inquinata (Deshayes 1854) R78
    |--M. lata [incl. M. sordida, M. suensoni] C64
    |--M. lipara Dall 1916 R78
    |--M. mazatlanica C64
    |--M. moretonensis (Deshayes 1855) [=Tellina moretonensis] H09
    |--M. nasuta (Conrad 1837) TW07 [incl. Tellina tersa C64]
    |--M. perfrigida PP64
    |--M. proxima C64
    |--M. robini (Finlay 1924) [=Tellina robini] F26
    |--M. scarlatia [incl. M. orientalis] GAS03
    |--M. secta (Conrad 1837) R78 [incl. M. edulis C64, Tellina japonica C64, T. ligamentina Desh. 1843 C64]
    |--M. solidula C64
    |--M. spenceri [=Tellina spenceri] F26
    |--M. tenuis M62
    |--M. truncata F66
    `--M. yoldiformis Carpenter 1864 C64

*Type species of generic name indicated

REFERENCES

[C64] Carpenter, P. P. 1864. Supplementary report on the present state of our knowledge with regard to the Mollusca of the west coast of North America. Report of the British Association for the Advancement of Science 33: 517–686.

[CS77] Cramp, S., & K. E. L. Simmons (eds) 1977. Handbook of the Birds of Europe, the Middle East and North Africa: The Birds of the Western Palaearctic vol. 1. Ostrich to Ducks. Oxford University Press: Oxford.

[F26] Finlay, H. J. 1926. A further commentary on New Zealand molluscan systematics. Transactions and Proceedings of the New Zealand Institute 57: 320–485.

[F66] Fraser, L. 1866. Communication of a list of mollusks collected by R. Swinhoe, Esq., in Formosa. Proceedings of the Zoological Society of London 1866: 146.

[GAS03] Gulbin, V. V., I. S. Arzamastsev & V. M. Shulkin. 2003. Ecological monitoring of the water area of Port Vostochnyi (Wrangel Bay) in the Sea of Japan (1995–2002). Russian Journal of Marine Biology 29 (5): 284–295.

[H09] Hedley, C. 1909. The Marine Fauna of Queensland: Address by the President of Section D. Australasian Association for the Advancement of Science: Brisbane.

[M62] Monniot, F. 1962. Recherches sur les graviers a Amphioxus de la région de Banyuls-sur-Mer. Vie et Milieu 13: 231–322.

[PP64] Peres, J. M., & J. Picard. 1964. Nouveau manuel de bionomie benthique de la mer Mediterranee. Recueil des Travaux de la Station Marine d'Endoume, Bulletin 31 (27): 5–137.

[R78] Reid, R. G. B. 1978. The systematic, adaptive and physiological significance of proteolytic enzyme distribution in bivalves. Veliger 20 (3): 260–265.

[TW07] Taylor, J. D., S. T. Williams, E. A. Glover & P. Dyal. 2007. A molecular phylogeny of heterodont bivalves (Mollusca: Bivalvia: Heterodonta): new analyses of 18S and 28S rRNA genes. Zoologica Scripta 36 (6): 587–606.

[T95] Tilot, V. 1995. An ecologically important type of biological activity in a deep-sea ferro-manganese nodule environment of the tropical north east Pacific. Mésogée 54: 101–120.

[XZ10] Xu, F., & J. Zhang. 2010. Study on the bivalve faunal composition of the Yellow Sea and Bohai Sea. In: China-Russia Bilateral Symposium: Proceedings of the China-Russia Bilateral Symposium of "Comparison on Marine Biodiversity in the Northwest Pacific Ocean", 10–11 October 2010, Qingdao (China) pp. 7–12. Institute of Oceanology, Chinese Academy of Sciences; A. V. Zhirmunsky Institute of Marine Biology, Far East Branch of the Russian Academy of Sciences.