A new genus and species of monostiliferous hoplonemertean (Nemertea: Enopla: Monostilifera) from Japan |
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| Authors: | Kajihara Hiroshi Gibson Ray Mawatari Shunsuke F. |
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| Affiliation: | (1) Division of Biological Sciences, Graduate School of Science, Hokkaido University, Sapporo, 060-0810, Japan;(2) School of Biological and Earth Sciences, Liverpool John Moores University, Byrom Street, Liverpool, L3 3AF, U.K.;(3) Division of Biological Sciences, Graduate School of Science, Hokkaido University, Sapporo, 060-0810, Japan |
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| Abstract: | A new genus and species of monostiliferous hoplonemertean, Diopsonemertes acanthocephala gen. et sp. nov., is described from Otsuchi Bay, Japan. Significant anatomical features of the new form include a body wall longitudinal musculature anteriorly divided into inner and outer layers by connective tissue, no pre-cerebral septum, the presence of a thin coat of diagonal muscle fibres between the body wall longitudinal and circular muscle layers in the foregut body region, cephalic retractor muscles derived only from the inner portion of the divided longitudinal muscles and a rhynchocoel more than half the body length. |
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| Keywords: | Nemertea Enopla Monostilifera Diopsonemertes acanthocephala Japan |
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