Caudofoveata

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Caudofoveata
Falcidens.png
Anterior 1.4 mm of a fixed and stained specimen of Falcidens sp.
Scientific classification e
Kingdom: Animalia
Phylum: Mollusca
Class: Aplacophora
Subclass: Caudofoveata
Families (and genera)

Caudofoveata is a small class within the phylum Mollusca, also known as Chaetodermomorpha. The class is often combined with Solenogastres and termed Aplacophora, but some studies have cast doubt on the monophyly of this group.[1]

Anatomy[edit]

Caudofoveata are small (1-30 mm), mainly deep sea molluscs. They are worm-like, lacking shells or distinct muscular feet; they instead have scales and calcareous spines called sclerites, for movement.

Ecology[edit]

Caudofoveates live by burrowing through soft sediment, and feed by lying vertically in the sediment with just the mouthparts exposed and taking in passing organic detritus. During sexual reproduction, the female produces eggs which are fertilized and brooded, and then the larvae swim freely.

Diet[edit]

Caudofoveates feed on foramanifera.[2]

Taxonomy[edit]

Caudofoveata comprises the following families and genera:

There are 15 genera, with about 150 known species.

References[edit]

  1. ^ Giribet, G.; Okusu, A, A.; Lindgren, A.R., A. R.; Huff, S.W., S. W.; Schrödl, M, M.; Nishiguchi, M.K., M. K. (May 2006). "Evidence for a clade composed of molluscs with serially repeated structures: monoplacophorans are related to chitons" (Free full text). Proceedings of the National Academy of Sciences of the United States of America 103 (20): 7723–7728. Bibcode:2006PNAS..103.7723G. doi:10.1073/pnas.0602578103. PMC 1472512. PMID 16675549.  edit
  2. ^ Guralnick, R.; Smith, K. (1999). "Historical and biomechanical analysis of integration and dissociation in molluscan feeding, with special emphasis on the true limpets (Patellogastropoda: Gastropoda)". Journal of Morphology 241 (2): 175–195. doi:10.1002/(SICI)1097-4687(199908)241:2<175::AID-JMOR7>3.0.CO;2-0. PMID 10420163.