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WoRMS Photogallery > Hydrozoa (hydroids)

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Narcomedusae: characteristics and specific terms

Narcomedusae: characteristics and specific terms
Description: - tentacles originate above umbrella margin

- gastric pouch (one is shaded in blue), not all Narcomedusae have them

- peripheral canal (green), may be absent - otoporpae (red arrow) are ridges clasping the umbrella margin, formed by a thickening of the epidermis, may be absent, function is unknown

- peronia are clefts between the lappets of the umbrella margin(blue arrow)


Author: Schuchert, Peter
GIF file - 16.46 kB - 486 x 421 pixels
added on 2013-06-17 - 216 views
WoRMS taxa
NarcomedusaeChecked: verified by a taxonomic editorchecked Schuchert, Peter 2013-06-17

Creative Commons LicenseThis work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 License


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