Published December 31, 2020
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Table 8 in Ceriantharia (Cnidaria) of the World: an annotated catalogue and key to species
Authors/Creators
- 1. 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
- 2. 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
- 3. Universidade de Sao Paulo (USP), Instituto de Biociencias, Sao Paulo, SP, Brazil
- 4. 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
- 5. 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
- 6. 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
Description
Table 8. Comparison of anatomical features of Isarachnanthus species.
| I. bandanensis | I. maderensis | I. nocturnus | I. panamensis | |
|---|---|---|---|---|
| Marginal tentacles | Up to 40 | Up to 42 | Up to 60 | Up to 32 |
| Arrangement of labial tentacles | (3)413.4242.4312.4312 | (1)1.11.11.11.11 | (1)2.12.12.12.12 | (2)431.4231.4231 |
| Length of actinopharynx | ~1/4 of gastric cavity | ~2/5 of gastric cavity | ~2/5 of gastric cavity | ~1/2 to 1/3 of gastric cavity |
| Hyposulcus | ~2/3 size of stomodeum | = size of stomodeum | = size of stomodeum | = size of stomodeum |
| Oral disc diameter | ~2cm | 2 cm | 3.5 cm | ~0.5 cm |
| Mesentery attached to siphonoglyph | Broad, 18 mesenteries attached | Broad, 10 mesenteries attached | Broad, 12-14 mesenteries attached | Broad, 16 mesenteries attached |
| Directive mesenteries | = length of Actinopharynx | > length of Actinopharynx | > length of Actinopharynx | >length of Actinopharynx |
| P(C)2 | Long, 3/4 of gastric cavity | Short, 1/3 of gastric cavity | Short, 1/3 of gastric cavity | Long, 3/4 of gastric cavity |
| P(C)3 | Very short, <1/8 of gastric cavity | Very short, ~1/6 of gastric cavity | Very short, ~1/5 of gastric cavity | Short, ~1/5 of gastric cavity |
| M1 | Almost to aboral pore | Almost to aboral pore | Almost to aboral pore | Reach aboral pore |
| M3 | Almost to aboral pore | Almost to aboral pore | Almost to aboral pore | Reach aboral pore |
| Cnido-glandular tract of fertile mesenteries | Present (short?) | Present | Present | Present (short?) |
| Cnido-glandular tract of B | Present (short?) | Present (short) | Present (short) | Present (short?) |
| Acontioids | Only in M1- M4 | Only in M1-M6 | M1-M3 (sometimes in M4 and M5) | Only in M1- M5 or absent |
Notes
Published as part of Stampar, Sergio N., Reimer, James D., Maronna, Maximiliano M., Lopes, Celine S. S., Ceriello, Hellen, Santos, Thais B., Acuna, Fabian H. & Morandini, Andre C., 2020, Ceriantharia (Cnidaria) of the World: an annotated catalogue and key to species, pp. 1 in ZooKeys 952 on page 1, DOI: 10.3897/zookeys.952.50617
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