Cymbulia sibogae Tesch, 1903
|Maximum size: 10-15 mm. (note 1)
is a medium-sized, transparent species with broad wings and a
spearpoint-shaped, cartilaginous pseudoconch. It has a paddle-shaped "tail" with an
Cymbulia sibogae is a pelagic species that is rarely seen
at night in off-shore waters.
Big Island and Maui: south Atlantic and Indo-Pacific.
It was first recorded in Hawaii off the Kona Coast of the Big Island by
Doug Perrine on Feb. 28, 2020. Some sources combine this species with
other populations in the genus under the circumtropical species Cymbulia peroni.
Photo: Doug Perrine: 10-15 mm: off the Kona
Island; 15 m (49 ft); at night; Feb. 28, 2020.
Observations and comments:
Molluscs lists the maximum size as 24 mm (with other populations in the genus reaching 65 mm). So, Doug's
animal may be relatively young. Kimberly Story's photo of a pseudoconch suggests that they can get much larger in Hawaiian waters.