Description: As a Calycophoran, this siphonophore has no gas-filled float, and only 1 or 2 nectophores (swimming bells). Muggiaea atlantica has only 1, elongated nectophore not over 3 cm long, with 5 straight or slightly curved, nonserrated, longitudinal ridges (photo). Besides the 5 sharp ridges on the sides, the nectophore comes to a sharp point at the apex (the ridges continue to this point). The nectophore is about twice as high as wide, and the hydroecium is less than half as deep as the apex of the nectosac (subumbrellar cavity), being about 1/3 the total length of the bell (photo). The somatocyst of the nectophore is relatively long, reaching about to the apex of the nectosac (photo). There are no teeth on the opening to the subumbrella (nectosac). Length of nectophore ranges up to about 5 mm (8 mm in the individual above)
How to Distinguish from Similar Species:Chelophyes appendicula has only 3 ridges. Lensia baryi and L. conoidea usually have 2 nectophores.
Geographical Range: Coastal Pacific, Indian, Atlantic, and Mediterranean oceans.
Habitat: Pelagic, coastal
to have a mutually exclusive range with Muggiaea
kochi. This can be one of the most abundant
non-crustacean predators in the waters around the San Juan Islands
1982). They seem to capture prey mainly at night, and
5-10 prey organisms per night.
Kozloff, 1987, 1996
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