Bolinopsis infundibulum (O.F. Muller, 1776)
Common name(s): Lobed sea gooseberry, lobate ctenophore, comb jelly
|Synonyms:Bolinopsis alata, Bolinopsis septentrionalis, Bolinopsis microptera|
|Bolinopsis infundibulum found in the Friday Harbor Marina, San Juan Island, WA by Janine Fetke July, 2009. Length approximately 2.3 cm.|
|(Photo by: Dave Cowles, July 2009)|
How to Distinguish from Similar Species: This is one of the few lobate ctenophores in our waters. Several similar species are highly flattened, but this species is not flattened. Others may be able to clap their lobes together in a "frog kick" for escape swimming, but this species cannot.
Geographical Range: Atlantic temperate to arctic, Pacific southern CA to Arctic, Arctic oceans. This is the most common lobate ctenophore along our Pacific coast.
Depth Range: Surface to 1000 m (largest individuals live deeper)
This species mostly cruises vertically, upward or downward. One of
the individuals we captured had recently swallowed a copepod. May
be eaten by Beroe ctenophores.
This ctenophoe is luminescent.
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Johnson and Snook, 1955 (as B. microptera)
Lamb and Hanby, 2005
Smith and Johnson, 1996
General Notes and Observations: Locations,
abundances, unusual behaviors:
In this view the dark spots which are in rows along the lobes in line with the ctene rows can be clearly seen.
This side view of a 1.4 cm diameter individual captured near Coffin Rocks (2014) shows the mouth (pointing toward top right) with the ciliated bands near it.
Another side view of the same 1.4 cm individual clearly shows the lobes and the mouth, along with the fact that the ctene rows are of different length and only run about 2/3 down the body.