The naval shipworm, Teredo navalis, is not a worm at all. It is a highly specialized bivalve mollusc adapted for boring into and living in submerged wood. The genus Teredo is one of several genera of wood-boring bivalve shipworms. Bankia and Lyrodus are two other genera of shipworm that can be found in the U.S. south Atlantic. Though it now exhibits a cosmopolitan distribution, T. navalis is a cryptogenic species in Florida and is believed to be non-native to North America (Carlton and Ruckelshaus 1997).The body of Teredo navalis is long and wormlike and reddish pale in color. Unlike most bivalves that rely on their shell for protection, T. navalis has a small (up to 2 cm long), helmet-like shell that encloses only a small portion of the animal. The shell modified for burrowing into wood. Fine ridges on the tri-lobed valves of the shell are used to rasp away wood. Instead of relying on the shell for protection, T. navalis protects its soft elongate body by residing in a secreted calcareous tube lining the excavated burrow. The tube is capped near the mouth of the burrow by a calcareous septum. An incurrent and excurrent siphon located at the anterior of the animal protrude through a small hole in the septum and into the water to facilitate feeding, respiration and excretion/egestion. The siphons can be rapidly contracted and protected underneath a pair of 0.5 cm long calcareous paddle-shaped pallets (NIMPIS 2002, Did?iulis 2007).
- B?nsch R., and F. Gosselck 1994. Untersuchungen zum Befall der Buhnen durch Teredo navalis Linnaeus 1758 (Molusca: Bivalvia) an der Ostseek?ste Mecklenburg-Vorpommerns. Gutachten im Auftrag des Staatlichen Amtes Rostock, S. 1-16
- Carlton J.T., and M.H. Ruckelshaus. 1997. Nonindigenous marine invertebrates and algae. Pp 187-201 in: Simberloff D., Schmitz D.C., and T.C. Brown (eds). Strangers in Paradise. Island Press, Washington, D.C. 467 p.
- Coe W.R. 1941. Sexual phases in wood-boring mollusks. Biological Bulletin 81:168-176.
- Cohen A.N. 2004. Invasions in the Sea. National Park Service ParkScience Magazine 22:37-41.
- Cohen A.N., and J.T. Carlton. 1995. Nonindigenous aquatic species in a United States estuary: a case study of the biological Invasions of the San Francisco Bay and Delta. A Report for the United States Fish and Wildlife Service, Washington D.C. and the National Sea Grant College Program, Connecticut Sea Grant.
- Costello D.P., and C. Henley 1971. Methods for obtaining and handling marine eggs and embryos. Marine Biological Laboratory, Woods Hole, MA (Second Edition).
- Did?iulis V. 2007. NOBANIS Invasive Alien Species Fact Sheet - Teredo navalis In: Online Database of the North European and Baltic Network on Invasive Alien Species. Available online.
- Distel D.L., Beaudoin D., and W. Morrill. 2002. Coexistence of multiple proteobacterial endosymbionts in the gills of the wood-boring bivalve Lyrodus pedicellatus (Bivalvia: Teredinidae). Applied Environmental Microbiology 68:6292-6299.
- Distel D.L., DeLong, E.F., and J.B. Waterbury. 1991. Phylogenetic characterization and in situ localization of the bacterial symbiont of shipworms (Teredinidae: Bivalvia) by using 16S rRNA sequence analysis and oligodeoxynucleotide probe hybridization. Applied Environmental Microbiology 57:2376-2382.
- Forbes E., and R.A.C. Godwin-Austen. 1959. The Natural History of the European Seas. 1977 reprint, Arno Press, NY. 306 p.
- Gallager S.M., Turner, R.D., and C.J. Berg. 1981. Physiological aspects of wood consumption, growth, and reproduction in the shipworm Lyrodus pedicellatus Quatrefages. Journal of Experimental Marine Biology and Ecology 52:63-77.
- Grave B.H. 1928. Natural history of shipworm, Teredo navalis, at Woods Hole, Massachusetts, Biological Bulletin 55:260-282.
- Grave B.H. 1942. The sexual cycle of the shipworm, Teredo navalis. Biological Bulletin 82:438-445.
- Lane C.E. 1959. Some aspects of the general biology of Teredo. pp. 137-144 in: Ray D.L. (Ed.) Marine Boring and Fouling Organisms. University of Washington Press, Seatle, WA. 534 p.
- Mann R., and S.M. Gallager. 1985. Growth, morphometry and biochemical composition of the wood boring molluscs Teredo navalis L., Bankia gouldi (Bartsch), and Nototeredo knoxi (Bartsch) (Bivalvia: Teredinidae). Journal of Experimental Marine Biology and Ecology 85:229-251.
- NIMPIS. 2002. Teredo navalis species summary. CSIRO National Introduced Marine Pest Information System (Hewitt C.L., Martin R.B., Sliwa C., McEnnulty, F.R., Murphy, N.E., Jones T. and S. Cooper Eds). Available online.
- Popham J.D., and M.R. Dikson. 1973. Bacterial associations in the teredo Bankia australis (Lamellibranchia: Molusca). Marine Biology 19:338-340.
- Reise K., Gollasch S., and W.J. Wolff. 1999. Introduced marine species of the North Sea coasts., Helgol?nder Meeresuntersuchungen 52:219-234.
- Richards B.R., R.E. Hillman, and N.J. Maciolek. 1984. Shipworms, Pp. 201-225 in: Kennish M.J., and R.A. Lutz (Eds.). Lecture Notes on Coastal and Estuarine Studies - Ecology of Barnegat Bay, New Jersey. Springer-Verlag. New York. 396 p.
- Rowley S.J., 2005. Teredo navalis. Great shipworm. Marine Life Information Network: Biology and Sensitivity Key Information Sub-programme. Plymouth: Marine Biological Association of the United Kingdom. Available online.
- Scheltema R.S., and R.V. Truitt. 1954. Ecological factors related to the distribution of Bankia gouldi Bartsch in Chesapeake Bay, Chesapeake Biological Laboratory Publication 100:1-31.
- Tuente U., Piepenburg D., and M. Spindler. 2002. Occurrence and settlement of the common shipworm Teredo navalis (Bivalvia: Teredinidae) in Bremerhaven harbours, northern Germany. Helgoland Marine Research. Vol. 56:87-94.
- Turner R.D. 1966. A survey and illustrated catalogue of the Teredinidae (Mollusca: Bivalvia). The Museum of Comparative Zoology, Harvard University, Cambridge. 265 p.
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