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Thordisa
cf. oliva
Chan & Gosliner, 2007
 
Thordisa cf. oliva
Maximum size:  about 5 mm.

Identification:  This is a dark, greenish-brown species with white branchia and rhinophores. The notum has elongate papillae with lighter tips (yellowish near the center).

Natural history:  The one known Thordisa cf. oliva was found under a rock in a tide pool at a depth of < 1 m (< 3 ft).

Distribution:  Big Island: may be widely distributed in the Indo-Pacific.

Taxonomic notes:  It was first recorded in Hawaii from Ho'ona bay, Big Island by Paul Okumura on Oct. 21, 2015. This animal appears to be a close match for some Thordisa oliva photos but seems to have somewhat more slender papillae than most.

Photo:  Paul Okumura: about 5 mm: Ho'ona bay, Big Island, Oct. 21, 2015.

Observations and comments:

Note 1:  ( )
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