Manania handi

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Manania handi
6 or-Manania handi.tif
Manania handi
Scientific classification edit
Kingdom: Animalia
Phylum: Cnidaria
Class: Staurozoa
Order: Stauromedusae
Family: Haliclystidae
Genus: Manania
Species:
M. handi
Binomial name
Manania handi
Larson and Fautin, 1989[1]

Manania handi is a species of stalked jellyfish found in the Pacific Ocean along the west coast of North America. This species can be found in shallow waters at low tide on soft substrates such as seagrass (Phyllospadix), but the related M. gwilliami have also been recovered at depths of >10 metres. This may reflect that intertidal specimens represent the fringes of a population that is typically more commonly found in the subtidal zone.[2]

Manania handi reaches a length of up to 4 cm, but the diameter of the bell at the oral end is relatively narrow at approximately 2 cm in fully-grown specimens. Distinctive pigment bands along the calyx and the relatively short stalk (or peduncle) distinguish it from related Manania species. Manania handi is also described typically as green with cream coloured gonads and vivid white nematocyst vesicles.[1] However the colour patterns of M. handi can vary from brownish-yellow to vivid green.[3] The name "handi" refers to , major professor of and co-author with Gwilliam on a number of studies describing Stauromedusae species.[1]

Gallery[]

  • Juvenile Manania handi specimen

  • Juvenile Manania handi specimen

  • Manania handi showing the pigment bands along the calyx

Disambiguation[]

In Gwilliam (1956), this species is referred to as "Manania prasinus."[1]

References[]

  1. ^ Jump up to: a b c d Larson, RJ, Fautin, DG. (1989). "Stauromedusae of the genus *Manania* (=*Thaumatoscyphus*) (Cnidaria, Scyphozoa) in the northeast Pacific, including descriptions of new species *Manania gwilliami* and *Manania handi*". Canadian Journal of Zoology. pp. 1543–1549.CS1 maint: multiple names: authors list (link)
  2. ^ Westlake, HE (2015). "A Comparative Immunohistochemical Study of the Neuromuscular Organization of Haliclystus 'sanjuanensis' and Manania handi (Cnidaria: Staurozoa)". University of Victoria (thesis).
  3. ^ Westlake, Hannah E.; Page, Louise R. (2017). "Muscle and nerve net organization in stalked jellyfish (Medusozoa: Staurozoa)". Journal of Morphology. 278: 29–49. doi:10.1002/jmor.20617. PMID 27696494.
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