Redescriptions of two poorly known marine suctorian ciliates, Ephelota truncata Fraipont, 1878 and Ephelota mammillata dons, 1918 (protozoa, ciliophora, suctoria), from Qingdao, China

  • Chen X
  • Miao M
  • Song W
 et al. 
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Abstract

Two poorly known marine suctorian ciliates, Ephelota truncata Fraipont, 1878 and Ephelota mammillata Dons, 1918, collected from the coastal waters off Qingdao, China, were investigated using both live observations and protargol impregation methods. Improved diagnoses for both species are supplied based on previous and current studies. The adult form of each species has two types of tentacle, a long stalk and a ramose macronucleus. In addition, E. truncata has a short column-shaped body about 75–250 × 100–200 µm in vivo, 12–16 suctorial tentacles, 80–100 prehensile tentacles and a stalk that is 500–1200 µm long; the swarmer is ovoid, about 40 × 30 µm in vivo, with 19–24 somatic kineties and a C-shaped macronucleus. E. mammillata has a bowl-shaped body about 55–150 × 80–150 µm in vivo, ca. 10 suctorial tentacles, 30–50 prehensile tentacles and a stalk that is 350–800 µm long. The SSU rRNA genes were sequenced for both species in order to compare them with those of closely related congeners

Author-supplied keywords

  • Morphology
  • Reproduction
  • SSU rRNA
  • Taxonomy

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Authors

  • Xiangrui Chen

  • Miao Miao

  • Weibo Song

  • Alan Warren

  • Khaled A.S. Al-Rasheid

  • Saleh A. Al-Farraj

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