
Here's a comb jelly you won't encounter too often in California
waters. Compared to its far more common cydippid relative,
Pleurobrachia,
this species has a more elongate body, with a tapered oral end. Perhaps the most
distinctive feature is the huge pharynx, extending up to 5/6 the length of the body.
The mouth is highly extensible. Circular in cross section, the body may reach
lengths of 2 to 3 cm. The paired tentacles have relatively short side branches.
The equal-length comb rows extend from the aboral end part way along the length of
the body, to the openings of the sheaths where the tentacles exit.
Lampea
can have a milky white color, or a rosy tinge with pink pigmentation in the comb rows.
It has a somewhat unusual feeding preference for a ctenophore, preying exclusively
on salps. Small individuals glomb onto the bodies of salps and consume pieces,
much like a parasite. At one time they were classified as an entirely
different organism (
Gastrodes parasiticum). Larger individuals can engulf entire salp chains. Sometimes seen in surface waters of
Monterey Bay and deeper water off Santa Barbara,
Lampea is a more common sight in
the Mediterranean, Atlantic Ocean, and off the coast of Japan.
All photographs © David
Wrobel and may not be used or copied without permission!