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If food is plentiful, they can eat 10 times their own weight per day. [78] While Beroe preys mainly on other ctenophores, other surface-water species prey on zooplankton (planktonic animals) ranging in size from the microscopic, including mollusc and fish larvae, to small adult crustaceans such as copepods , amphipods , and even krill .
Mertensia ovum, also known as the Arctic comb jelly or sea nut, is a cydippid comb jelly or ctenophore first described as Beroe ovum by Johan Christian Fabricius in 1780. It is the only species in the genus Mertensia.
Pleurobrachia bachei is a member of the phylum Ctenophora and is commonly referred to as the Pacific sea gooseberry. These comb jellies are often mistaken for medusoid Cnidaria , but lack stinging cells .
Beroe abyssicola is a pelagic ctenophore species that inhabits the North Pacific. [2] Like other Beroida, B. abyssicola has a very different body plan from other Ctenophores, namely the lack of any tentacles in any life stage. [2]
Inside the mouths of beroid ctenophores, macrocilia are present and essential for feeding. Each macrocillium contains multiple axonemes that are surrounded by a common membrane with a distinct capping structure at the distal tip.
Hormiphora californensis is a species of comb jelly in the family Cydippidae. [1] Called the California sea gooseberry, is a comb jelly, or ctenophore, common in California coastal waters.
Unlike cnidarians, Mnemiopsis does not sting. Their body comprises 97% water. They have a maximum body length of roughly 7–12 centimetres (3–5 in) and a diameter of 2.5 centimetres (1 in). It is euryoecious, tolerating a wide range of salinity (2 to 38 psu), temperature (2–32 °C or 36–90 °F), and water quality.
Bloodybelly comb jelly (Lampocteis cruentiventer) swimmingThis ctenophore differs from all previously described lobate ctenophores in two major ways: (1) all of the meridional canals have blind aboral endings, and (2) the body is penetrated by a deep notch located between the adjacent subtentacular comb rows at the level of the infundibulum.