Cestode Larvae from Scyphomedusae of the Gulf of Mexico
Abstract:Two types of plerocercoid are known to infect Scyphomedusae of the Gulf of Mexico. A single tetraphyllidean-like plerocercoid was found in a lappet of a deep-water coronate medusa (Periphylla periphylla). A second type of cestode larva commonly infects the cabbagehead rhizostome jellyfish Stomolophus meleagris in coastal waters of Texas, Louisiana, and Mississippi. The parasite of Stomolophus has an inverted scolex, which is often everted and used in grasping host tissues when burrowing. The inverted scolex is covered with short spinous projections 21µ-41µ high. Similar larvae are known to infect two rhizostome species from the Indo-Pacific and are also known to be found encysted in the gastric and intestinal walls of deep-sea fishes of the family Macrouridae. The plerocercoid that infects Stomolophus is easily maintained in the laboratory and its behavior studied, using both host tissues and seawater agar as substrates.
Document Type: Research Article
Publication date: September 1, 1973
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