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Additional Photos
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1st animal
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underside
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side
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acid glands
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slightly contracted
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dark patch
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Unidentified Pleurobranchid #3
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Maximum size: about 28 mm.
Identification:
This
is a pale-peach animal that may appear white in ambient light. It
usually has a dark patch showing through the mantle behind the head. It
has two series of pustules on the notum and may be distinguished from Berthella pellucida by its lack of translucent-white reticulation. It may have acid glands in its notum associated with the pustules.
Natural history:
Unidentified
pleurobranchid #3 is
known from three animals. The first two were found in caves at 6-8 m
(20-25 ft). The third was found at about 8 m (25 ft) under a ledge, at
night.
Distribution:
Big Island and Oahu.
Taxonomic notes:
Perhaps, this is a third Berthellina sp.? (Note 1) It was first recorded in Hawaii at "Kei Kei Caverns," Kohala Coast, Big
Island by David Rafalovich on Aug. 1, 2013.
Photo: Marketa Murray: about 20 mm: Kohala, Big Island; Dec. 11, 2020.
Observations and comments:
Note
1: The pleurobranchid shells listed as "un. sp. #2" could turn out to be from this species. However, with multiple candidates, that will require further work for confirmation. | |