Chlamys islandicus, copyright Acélan.

Belongs within: Pectinidae.

Chlamys is a genus of scallops that first appeared in the Triassic. Members of the genus generally live in fissures attached to the substrate by a byssus. In members of the type subgenus, the cardinal teeth of the hinge are weak or nearly obsolete. The Late Cretaceous subgenus Lyriochlamys is characterised by an interlocking rib pattern and small gibbous shell (Stilwell 1998).

Chlamys Röding 1798 S98
    |--*C. (Chlamys) islandicus (Müller 1776) S98 [=Pecten islandicus S98; incl. P. fabricii C64]
    |--C. (Lyriochlamys Sobetski 1977) S98
    |    |--C. (*L.) fissicosta (Etheridge 1881) [=Pecten fissicosta] S98
    |    `--C. (L.) propesalebrosa Darragh & Kendrick 1991 [=C. (Microchlamys) propesalebrosa] S98
    |--C. (*Microchlamys) pulchella (Nilsson 1827) [=Pecten pulchellus] S98
    `--C. (Zygochlamys Ihering 1907) P61
         |--C. (*Z.) geminata [=Pecten geminata] P61
         `--C. (Z.) delicatula (Hutton 1873) [incl. C. campbellicus Odhner 1924, C. subantarctica Hedley 1916] P61

Chlamys incertae sedis:
  C. anguineus Finlay 1927 [=Pecten undulatus Sowerby 1842 non Nilsson 1827] F27b
  C. antiaustralis F27a
  C. bruei PP64
  C. challengeri (Smith 1891) MG-H11
  C. clavata PP64
  C. commutata PP64
  C. convexus F27a
  C. cookei Dall, Bartsch & Rehder 1938 BW09
  C. coruscans (Hinds 1854) W84
  C. cracenticostata Darragh & Kendrick 1991 S98
  C. crassicostatus (Sowerby 1842) [=Pecten crassicostatus] H09
  C. cretosus Defr. 1822 [incl. Pecten undulatus Nilsson 1827] F27b
  C. crouchi Smith 1892 H09
  C. cruentatus (Reeve 1853) [=Pecten cruentatus] H09
  C. cuneatus (Reeve 1853) [=Pecten cuneatus] H09
  C. distorta T-Q84
  C. dringi (Reeve 1853) [=Pecten dringi] H09
  C. flabellatus (Lamarck 1819) [=Pecten flabellatus] H09
  C. flexuosa PP64
  C. fricatus (Reeve 1853) [=Pecten fricatus] H09
  C. funebris (Reeve 1853) BW09 [=Pecten funebris H09]
  C. hastata GW02
  C. hericius (Gould 1850) R78
  C. imparicostatus [=C. imparvicostatus (l. c.)] F27a
  C. kaiparaensis Finlay 1924 [=Pecten subconvexus Marshall 1918 (preoc.)] F27b
  C. kotakiensis Takai & Hayami 1957 SB93
  C. lemniscatus (Reeve 1853) [=Pecten lemniscatus] H09
  C. lentiginosus (Reeve 1853) [=Pecten lentiginosus] H09
  C. limatula (Reeve 1853) [=Pecten limatula] H09
  C. lowei (Hertlein 1935) PP78
  C. madreporarum (Sowerby 1847) [=Pecten madreporarum] H09
  C. maldivensis Smith 1904 H09
  C. moretonicus Finlay 1927 [=Pecten pulchellus Reeve 1853 non Nilsson 1827] F27b
  C. multistriata PP64
  C. opercularis T-Q84
  C. pacifica Broderip 1835 BW09
  C. pallium (Linnaeus 1758) [=Ostrea pallium] H09
  C. pasca (Dall 1908) W84
  C. patagonicus F27a
  C. pesfelis PP64
  C. pseudolima (Sowerby 1842) [=Pecten pseudolima] H09
  C. ruoergaiensis TE01
  C. senatoria (Gmelin 1791) W84, H09 [=Ostrea senatoria H09]
    |--C. s. senatoria W84
    `--C. s. nobilis (Reeve 1852) W84
  C. septemradiata P75
  C. serratus H08
  C. singaporinus (Sowerby 1842) [=Pecten singaporinus] H09
  C. squamata (Gmelin 1791) W84
  C. strangei (Reeve 1852) [=Pecten strangei] H09
  C. tigrina PP64
  C. townsendi (Sowerby 1895) ES88
  C. varia GW02

*Type species of generic name indicated


[BW09] Bryce, C. & C. Whisson. 2009. The macromolluscs of Mermaid (Rowley Shoals), Scott and Seringapatam Reefs, Western Australia. Records of the Western Australian Museum Supplement 77: 177–208.

[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.

[ES88] Emerson, W. K., & W. E. Sage, III. 1988. A new species of Vasum (Gastropoda: Turbinellidae) from off Somalia. Nautilus 102 (1): 36–39.

[F27a] Finlay, H. J. 1927a. A further commentary on New Zealand molluscan systematics. Transactions and Proceedings of the New Zealand Institute 57: 320–485.

[F27b] Finlay, H. J. 1927b. New specific names for austral Mollusca. Transactions and Proceedings of the New Zealand Institute 57: 488–533.

[GW02] Giribet, G., & W. Wheeler. 2002. On bivalve phylogeny: a high-level analysis of the Bivalvia (Mollusca) based on combined morphology and DNA sequence data. Invertebrate Biology 121 (4): 271–324.

[H08] Hedley, C. 1908. Studies on Australian Mollusca. Part X. Proceedings of the Linnean Society of New South Wales 33: 456–489, pls 7–10.

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

[MG-H11] McEnnulty, F. R., K. L. Gowlett-Holmes, A. Williams, F. Althaus, J. Fromont, G. C. B. Poore, T. D. O’Hara, L. Marsh, P. Kott, S. Slack-Smith, P. Alderslade & M. V. Kitahara. 2011. The deepwater megabenthic invertebrates on the western continental margin of Australia (100–1100 m depths): composition, distribution and novelty. Records of the Western Australian Museum Supplement 80: 1–191.

[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.

[PP78] Poorman, F. L., & L. H. Poorman. 1978. Additional molluscan records from Bahía de Los Angeles, Baja California Norte. Veliger 20 (4): 369–374.

[P75] Por, F. D. 1975. Pleistocene pulsation and preadaptation of biotas in Mediterranean seas: consequences for Lessepsian migration. Systematic Zoology 24 (1): 72–78.

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

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

[SB93] Skelton, P. W., & M. J. Benton. 1993. Mollusca: Rostroconchia, Scaphopoda and Bivalvia. In: Benton, M. J. (ed.) The Fossil Record 2 pp. 237–263. Chapman & Hall: London.

[S98] Stilwell, J. D. 1998. Late Cretaceous Mollusca from the Chatham Islands, New Zealand. Alcheringa 22 (1): 29–85.

[T-Q84] Thiriot-Quiévreux, C. 1984. Les caryotypes de quelques Ostreidae et Mytilidae. Malacologia 25 (2): 465–476.

[TE01] Tong, J., & D. H. Erwin. 2001. Triassic gastropods of the southern Qinling Mountains, China. Smithsonian Contributions to Paleobiology 92: 1–47.

[W84] Waller, T. R. 1984. The ctenolium of scallop shells: functional morphology and evolution of a key family-level character in the Pectinacea (Mollusca: Bivalvia). Malacologia 25 (1): 203–219.

Last updated: 6 November 2021.

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