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Diplosoma listerianum(Milne-Edwards, 1841)Diplosoma listerianum

Found both on mangrove roots and dead coral in Bocas del Toro. Also found in artificial substrates.

Widely distributed in all oceans.

Natural History Notes
This is probably an introduced species in Bocas del Toro.
The body contains organic extracts possibly to deter predation.

1.0 m
The encrusting colony is very thin, covering large areas of the substrate. The colony is grayish because the zooids have a dark abdomen, visible through the very delicate tunic. Larvae bud precociously and have 2 zooids.

Other Literature
Pisut, D. P., Pawlik, J. R. (2002) Anti-predatory chemical defenses of ascidians: Secondary metabolites or inorganic acids? Journal of Experimental Marine Biology and Ecology. 270(2), 203-214.

Kott, P. (2001) The australian Ascidiacea Part 4, Aplousobranchia (3), Didemnidae Memoirs of the Queensland Museum 47(1): 1-407.

Rocha, R. M. & Moreno, T. R. 2000. Ascidians associated with Eudistoma carolinense Van Mame, 1945. With description of a new species of Polycarpa. Ophelia 52 (1): 9-16.

Van Name, W.G. (1945) The North and South American ascidians Bull. Amer. Mus. Nat. Hist., 84: 1-476.

In Bocas Del Toro
Reported ByRocha, R. M., Faria, S. B., and Moreno, T. R.; Marine Invertebrate Taxonomy Workshop I, Bocas del Toro, August 2003

NSF-PASI: Advanced Tunicate Biology course, 2011

LocalityMarina Isla Colon.

Diplosoma listerianum
Diplosoma listerianum
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Collin, R., Diaz, M. C., Norenburg, J., Rocha, R. M., Sanchez, J. A., Schulze, A., Schartz, M. and Valdes, A. (2005) Photographic Identification guide to some Common Marine Invertebrates of Bocas Del Toro, Panama. Caribbean Journal of Science 41(3), 638 - 707.

Rocha R.M., et al. Ascidians from Bocas del Toro, Panama. I. Biodiversity. Caribbean Journal of Science, Vol.41, No. 3, 600-612, 2005.

Field Guide to Common Sea-Squirts (Tunicata, Chordata) of Bocas del Toro area elaborated by students of the NSF-PASI: Advanced Tunicate Biology course, 2011
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