Table 1 in Ceriantharia (Cnidaria) of the World: an annotated catalogue and key to species

Table 1. Comparison of anatomical features of Ceriantheomorphe species (after Lopes et al. 2019).
C. ambonensisC. brasiliensisC. adelitaMarginal tentaclesMore than 100Up to 392Up to 352Directive labial tentacleAbsentPresent(?)Arrangement of labial tentacles(0)112.2112(1)123.1324.3124.3124(?)112.211Actinopharynx1/8 to 1/10 of gastric cavity1/4-1/5 of gastric cavity1/7 to 1/8 of gastric cavityOral disc~ 4 cm~5 cm~3 cmSiphonoglyphLong, 6 mesenteries attachedRather wide, 4 mesenteries attachedLong, 6 mesenteries attachedDirective mesenteries>Actinopharynx>Actinopharynx>ActinopharynxP2Almost to aboral poleTo aboral poleAlmost to aboral poleP3Short, ≅ directivesShort, directivesM± 2B± 2B± 2BM3± M2=M2± M2Cnido-glandular tract at fertile mesenteries of first quartetsPresentPresentPresentCraspedion tract at fertile mesenteries2/42/5 - 3/52/5 - 3/5