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1 June 2009 Two New Dicyemids from Sepia longipes (MollUsca: Cephalopoda: Decapoda)
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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.
and Hidetaka Furuya "Two New Dicyemids from Sepia longipes (MollUsca: Cephalopoda: Decapoda)," Journal of Parasitology 95(3), (1 June 2009). https://doi.org/10.1645/GE-1875.1
Received: 16 September 2008; Accepted: 1 October 2008; Published: 1 June 2009
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