Craterolophus

Craterolophus is a genus of jellyfish. It is the only genus in the monotypic family Craterolophidae.^[1] Species of this genus are characterized by the absence of primary tentacles^[1] as well as the absence of longitudinal muscles running along the peduncle.^[2]

Craterolophus
Illustration of Craterolophus convolvulus, formerly called Lucernaria convulvus
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Cnidaria
Class:	Staurozoa
Order:	Stauromedusae
Suborder:	Amyostaurida
Family:	Craterolophidae Uchida, 1929
Genus:	Craterolophus James-Clark, 1863
Species
Craterolophus convolvulus Johnston, 1835 Craterolophus macrocystis von Lendenfeld, 1884

References

1. Daly; et al. (2007). "The phylum Cnidaria: A review of phylogenetic patterns and diversity 300 years after Linnaeus". Zootaxa. Magnolia Press. doi:10.11646/zootaxa.1668.1.11. hdl:1808/13641.
2. Hayward, P. J.; Ryland, J. S. (1991). The Marine Fauna of the British Isles and North-West Europe. Vol. 1. Oxford University Press. ISBN 978-0198573562.