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Gleba cordata
Forsskål in Niebuhr, 1776
 
Gleba cordata
Maximum size:

Identification:  Similar in size to Corolla spectabilis, this species is transparent with a broad swimming plate. It possesses a gelatinous, internal pseudoconch instead of an external calcareous shell. Mucous glands can be seen along the lateral edges of the plate. The posterior edge of the plate is straight and the posterior corners are notched. The proboscis is longer than in Corola.

Natural history:  Gleba cordata is a pelagic species that is rarely seen at night in off-shore waters.

Distribution:  Big Island: circumtropical?

Taxonomic notes:  It was first recorded in Hawaii off the Kona Coast of the Big Island by Jeff Milisen on June 9, 2017.

Photo:  Jeff Milisen (in A Field Guide to Blackwater Diving in Hawaii): off the Kona Coast, Big Island; June 9, 2017.

Observations and comments:

Note 1:
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