Two new dicyemids from Sepia longipes (Mollusca: Cephalopoda: Decapoda)
In: The Journal of Parasitology. American Society of Parasitologists: Lawrence, Kan., etc.,. ISSN 0022-3395; e-ISSN 1937-2345, more
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| Keywords |
Taxa > Species > New taxa > New species
Dicyemidae van Beneden, 1882 [WoRMS]; Sepia longipes M. Sasaki, 1913 [WoRMS]
Marine/Coastal |
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| Abstract |
Two new species of dicyemid mesozoan are described from Sepia longipes, Sasaki, 1913, collected from Tosa Bay in Japan. Dicyema oxycephalum n. sp. is a medium-sized species that is about 1,800 µm in length. It lives in folds of the renal appendages. The vermiform stages are characterized as having 28–34 peripheral cells, a conical calotte, and an axial cell that extends to the base of the propolar cells. Infusoriform embryos consist of 39 cells; 2 nuclei are present in each urn cell and the refringent bodies are solid. Pseudicyema cappacephalum n. sp. is also a medium-size species; it is about 1,000 µm in length. It too lives in folds of the renal appendages. The vermiform stages are characterized as having 32–34 peripheral cells, a cap-shaped calotte, and an axial cell that extends to the base of propolar cells. Infusoriform embryos consist of 39 cells; 2 nuclei are present in each urn cell and the refringent bodies are solid. This is the first description of dicyemids from S. longipes. |
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