Sabellida

Peacock worms Sabella pavonina, copyright Sue Daly.

Belongs within: Annelida.
Contains: Pogonophora, Serpulidae, Sabellidae.

The Sabellida are a group of marine annelids characterised by fusion of the peristomium to the prostomium, together with the usual presence of numerous head appendages such as feeding tentacles. Molecular phylogenetic analyses have indicated that this group includes the Pogonophora, beard worms, whose derived morphology had previously lead to them being treated as a distinct phylum from annelids. Pogonophorans lack a mouth or digestive tract, instead absorbing nutrients directly through the outer cuticle or from endosymbiotic bacteria contained in the rear part of the body.

<==Sabellida
    |--+--PogonophoraSS07
    |  `--Sabellariidae [Hermellidae]SS07
    |       |  i. s.: Lygdamis [incl. Monorchos Treadwell 1926]H56
    |       |           |--L. asteriformis (Augener 1906) [incl. Hermella varians Treadwell 1910]H56
    |       |           |--L. giardiPG98
    |       |           `--L. philippinensis (Treadwell 1926) [=Monorchos philippinensis]H56
    |       |         PhalacrostemmaH56
    |       |           |--P. cidariophilumBK77
    |       |           `--P. setosa (Treadwell 1906) [=Sabellaria setosa]H56
    |       |--Gunnarea capensis Schmarda 1861RP07
    |       |--IdanthyrsusRP07
    |       |    |--I. armatus Kinberg 1867HG14
    |       |    |--I. australiensis (Haswell 1883)HG14
    |       |    `--I. pennatus (Peters 1855)RP07
    |       `--+--PhragmatopomaRP07
    |          |    |--P. lapidosa Kinberg 1867 [incl. Centrocorone spinifera Treadwell 1939]H56
    |          |    `--P. virginii Kinberg 1867GO78
    |          `--Sabellaria Lamarck 1818PE16, H62 [incl. Hermella Savigny 1822H62]
    |               |--*S. alveolata (Linné 1767) [=Sabella alveolata]H62
    |               |--S. cementarium Moore 1906SS07
    |               |--S. kaiparaensisPG98
    |               `--S. spinulosaB79
    `--SerpulimorphaW93
         |--SerpulidaePE16
         `--SabellidaeSS07

*Type species of generic name indicated

References

[BK77] Barel, C. D. N., & P. G. N. Kramers. 1977. A survey of the echinoderm associates of the north-east Atlantic area. Zoologische Verhandelingen 156: 1–159.

[B79] Buss, L. W. 1979. Habitat selection, directional growth and spatial refuges: why colonial animals have more hiding places. In: Larwood, G., & B. R. Rosen (eds) Biology and Systematics of Colonial Organisms pp. 459–497. Academic Press: London.

[GO78] Gallardo S., C., & C. Osorio R. 1978. Hiatella solida (Sowerby, 1834) (Mollusca: Hiatellidae) on Concholepas concholepas (Bruguière, 1789) and other substrates. Veliger 20 (3): 274–278.

[H56] Hartman, O. 1956. Polychaetous annelids erected by Treadwell, 1891 to 1948, together with a brief chronology. Bulletin of the American Museum of Natural History 109 (2): 239–310.

[H62] Howell, B. F. 1962. Worms. In: Moore, R. C. (ed.) Treatise on Invertebrate Paleontology pt W. Miscellanea: Conodonts, Conoidal Shells of Uncertain Affinities, Worms, Trace Fossils and Problematica pp. W144–W177. Geological Society of America, and University of Kansas Press.

[HG14] Hutchings, P., C. Glasby, M. Capa & A. Sampey. 2014. Kimberley marine biota. Historical data: polychaetes (Annelida). Records of the Western Australian Museum Supplement 84: 133–159.

[PE16] Parry, L. A., G. D. Edgecombe, D. Eibye-Jacobsen & J. Vinther. 2016. The impact of fossil data on annelid phylogeny inferred from discrete morphological characters. Proceedings of the Royal Society of London Series B—Biological Sciences 283: 20161378.

[PG98] Probert, P. K., & S. L. Grove. 1998. Macrobenthic assemblages of the continental shelf and upper slope off the west coast of South Island, New Zealand. Journal of the Royal Society of New Zealand 28: 259–280.

[RP07] Rousset, V., F. Pleijel, G. W. Rouse, C. Erséus & M. E. Siddall. 2007. A molecular phylogeny of annelids. Cladistics 23: 41–63.

[SS07] Struck, T. H., N. Schutt, T. Kusen, E. Hickman, C. Bleidorn, D. McHugh & K. M. Halanych. 2007. Annelid phylogeny and the status of Sipuncula and Echiura. BMC Evolutionary Biology 7: 57.

[W93] Wills, M. A. 1993. Annelida. In: Benton, M. J. (ed.) The Fossil Record 2 pp. 271–278. Chapman & Hall: London.

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