Resources

Books

Balzer, I. "Symbiotic Association Between the Acoel

Convolutriloba longifissura and the Alga Tetraselmis sp." In Endocytobiology VII, edited by E. Wagner, J. Normann, H. Greppin, J. H. P. Hackstein, R. G. Hermann, K. V. Kowallik, H. E. A. Schenk, and J. Seckbach. Geneva: Geneva University Press, 1999.

Caira, Janine N., and D. Timothy J. Littlewood. "Worms, Platyhelminthes." In Encyclopedia of Biodiversity, vol. 5, edited by S. Levin. San Diego: Academic Press, 2001.

Littlewood, D. T. J., and R. A. Bray, eds. Interrelationships of the Platyhelminthes. London: Taylor and Francis, 2001.

Periodicals

Akesson, B., R. Gschwentner, J. Hendelberg, P. Ladurner, J. Müller, and R. Rieger. "Fission in Convolutriloba longifissura: Asexual Reproduction in Acoelous Turbellarians Revisited." Acta Zoologica 82, no. 3 (2001): 231-239.

Balzer, I. "Symbiotic Association Between the Plathelminth Convolutrilova longifissura and the Alga Tetraselmis sp." Nova Hedwigia 112 (1996): 461-475.

Bartolomäus, Thomas, and Ivonne Balzer. "Convolutriloba longifissura nov. spec. (Acoela)— The First Case of Longitudinal Fission in Plathelminthes." Microfauna Marina 11 (1997): 7-118.

Gschwentner, Robert, Sanja Baric, and Reinhard Rieger. "New Model for the Formation and Function of Sagittocysts: Symsagittifera corsicae n. sp. (Acoela)." Invertebrate Biology 121, no. 2 (1999): 95-103.

Gschwentner, Robert, Peter Ladurner, Willi Salvenmoser, Reinhard Rieger, and Seth Tyler. "Fine Structure and

Evolutionary Significance of Sagittocysts of Convolutriloba longifissura (Acoela, Platyhelminthes)." Invertebrate Biology 118, no. 4 (1999): 332-345.

Henry, J. Q., M. Q. Martindale, and B. C. Boyer. "The Unique Developmental Program of the Acoel Flatworm, Neochildia fusca." Developmental Biology 220 (2000): 285-295.

Janssen, Hans Heinrich, and Rolf Gradinger. "Turbellaria (Archoophora: Acoela) from Antarctic Sea Ice Endofauna— Examination of their Micromorphology." Polar Biology 21, no. 6 (1999): 410-416.

Raikova, Olga, M. Reuter, Elena Kotikova, and Margaretha K. S. Gustafsson. "A Commissural Brain! The Pattern of 5-HT Immunoreactivity in Acoela (Plathelminthes)." Zoomorphology 118, no. 2 (1998): 69-77.

Ruiz-Trillo, I., M. Riutort, T. J. Littlewood, E. A. Herniou, and J. Baguna. "Acoel Flatworms: Earliest Extant Bilaterian Metazoans, Not Members of Platyhelminthes." Science 283 (1999): 1919-1923.

Other

"Acoel Flatworms Misrepresented?" University of Maine, Department of Biological Sciences. 1999 (July 15, 2003). <www.umesci.maine.edu/Science/letter.htm>.

"Order Acoela." Alien Travel Guide (July 15, 2003).

<www.alientravelguide.com/science/biology/life/animals/plat yhel/turbella/acoela/>.

"Project: Morphology and Phylogeny of the Acoelomorpha (Platyhelminthes)." Göteborgs Universitets Marina Forskningscentrum. <www.gmf.gu.se/old_english_gmf/ Researchers/KennetLundin.html>.

Kevin F. Fitzgerald, BS

Phylum Platyhelminthes Class Turbellaria Number of families 102

Thumbnail description

Mostly free-living flatworms with a cellular epidermis that is usually ciliated; the mouth leads to a stomodeal pharynx and incomplete gut_

Photo: A flatworm (Pseudoceros bimarginatus) showing warning coloration. (Photo by ©A. Flowers & L. Newman/Photo Researchers, Inc. Reproduced by permission.)

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