Ceriantharia (Cnidaria) of the World: an annotated catalogue and key to species Author Stampar, Sergio N. Universidade Estadual Paulista (UNESP), FCL / Assis, Laboratorio de Evolucao e Diversidade Aquatica; LEDA, Departamento de Ciencias Biologicas, Assis, Brazil & Universidade Estadual Paulista (UNESP), Departamento de Zoologia, Instituto de Biociencias, Botucatu, SP, Brazil https://orcid.org/0000-0002-9782-1619 sergiostampar@gmail.com Author Reimer, James D. University of The Ryukyus, Faculty of Science, Department of Biology, Chemistry, and Marine Science, MISE (Molecular Invertebrate Systematics and Ecology) Laboratory, Okinawa, Japan & University of The Ryukyus, Tropical Biosphere Research Center, Okinawa, Japan https://orcid.org/0000-0003-0453-8804 Author Maronna, Maximiliano M. Universidade de Sao Paulo (USP), Instituto de Biociencias, Sao Paulo, SP, Brazil https://orcid.org/0000-0002-2590-639X Author Lopes, Celine S. S. Universidade Estadual Paulista (UNESP), FCL / Assis, Laboratorio de Evolucao e Diversidade Aquatica; LEDA, Departamento de Ciencias Biologicas, Assis, Brazil & Universidade Estadual Paulista (UNESP), Departamento de Zoologia, Instituto de Biociencias, Botucatu, SP, Brazil Author Ceriello, Hellen Universidade Estadual Paulista (UNESP), FCL / Assis, Laboratorio de Evolucao e Diversidade Aquatica; LEDA, Departamento de Ciencias Biologicas, Assis, Brazil & Universidade Estadual Paulista (UNESP), Departamento de Zoologia, Instituto de Biociencias, Botucatu, SP, Brazil https://orcid.org/0000-0003-1199-2773 Author Santos, Thais B. Universidade Estadual Paulista (UNESP), FCL / Assis, Laboratorio de Evolucao e Diversidade Aquatica; LEDA, Departamento de Ciencias Biologicas, Assis, Brazil & University of The Ryukyus, Faculty of Science, Department of Biology, Chemistry, and Marine Science, MISE (Molecular Invertebrate Systematics and Ecology) Laboratory, Okinawa, Japan Author Acuna, Fabian H. Instituto de Investigaciones Marinas y Costeras (Iimyc) CONICET; Facultad De Ciencias Exactas y Naturales Universidad Nacional de Mar Del Plata Funes 3250. 7600 Mar Del Plata, Argentina & Estacion Cientifica Coiba (Coiba-Aip), Clayton, Panama, Republica de Panama Author Morandini, Andre C. Universidade de Sao Paulo (USP), Instituto de Biociencias, Sao Paulo, SP, Brazil & Universidade de Sao Paulo (USP), Centro de Biologia Marinha, Sao Sebastiao, SP, Brazil https://orcid.org/0000-0003-3747-8748 text ZooKeys 2020 952 1 63 http://dx.doi.org/10.3897/zookeys.952.50617 journal article http://dx.doi.org/10.3897/zookeys.952.50617 1313-2970-952-1 961036180C3A4DE9BCC19AE0A824B9D8 4DD4C3F03B1C546FA3471BEC6C4CE3E9
Table 2. Comparison of anatomical features of Ceriantheopsis species (after Stampar et al. 2016).
C. americanaC. nikitaiC. austroafricanaC. lineata
Marginal tentaclesUp to 100-120Up to 70Up to 70Up to 60
Directive labial tentaclePresentPresentPresentAbsent
Arrangement of labial tentacles(2)413.4232.4312* (4)413.4231.4312.4312(3)423.4232.4312.4312(2)313.4343.4324.31244231.4231.4231.4231
Actinopharynx1/12-1/8 of gastric cavity1/5-1/4 of gastric cavity1/10-1/8 of gastric cavity1/6-1/5 of gastric cavity
Oral disc0.7-1.0 cm~0.6-0.7 cmWide, ~1.5 cm in preserved1.0 - 1.5 cm in preserved
SiphonoglyphNarrow, 4 mesenteries attachedWide, 4 mesenteries attachedWide, 4 mesenteries attachedNarrow, 2 mesenteries attached
Directive mesenteries<Actinopharynx~Actinopharynx~Actinopharynx<Actinopharynx
P2To aboral poleTo aboral poleTo aboral poleAlmost to aboral pole
P3=B=B=B=B
M>>B<2B>B≥B
M3≤M2>M2≤M2<Half M2
Cnido-glandular tract at fertile mesenteries of first quartetsPresentNot presentPresentPresent
Craspedion tract at fertile mesenteries6/7-8/93/56/7~6/7-8/9
Cnido-glandular tract at B<<b=b<b<b
Craspedonemes of craspedion at fertile mesenteriesSometimes presentAbsentAbsentAbsent