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dusky rhinophores
 


 
Phyllidiopsis
loricata
(Bergh, 1873)
 
Phyllidiopsis loricata
Maximum size:  19 mm.

Identification:  This species has a white body, typically with 8-10 large black spots encircling the mid-dorsal area and fewer smaller spots scattered randomly among them. The notum is opaque-white becoming translucent-white around the mantle margin. Upon close examination, iridescent striae can be seen in the center of the notum representing embedded spicules radiating from the midline. Many tiny tubercles cover the notum and line up medially in several low, longitudinal ridges giving the animal a rough appearance. The fused oral tentacles are very large for the animal’s size. It can be distinguished from Phyllidia scottjohnsoni by the lack of black spots mid-dorsally and the presence of fused oral tentacles.

Natural history:  Phyllidiopsis loricata is a rare species found under rocks or on shaded walls in moderately protected to highly exposed locations from 6-43 m (20-141 ft). We have observed it on a white sponge. 

Distribution:  Big Island, Maui and Oahu: widely distributed in the Indo-Pacific.

Taxonomic notes:  It was first recorded in Hawaii at Pupukea, Oahu by Scott Johnson on July 2, 1979. The name means “equipped with a piece of close-fitting armor,” perhaps for the rough appearance of the notum.

Photo:  Mike Severns: 18 mm: Maalaea Bay, Maui; Sept. 21, 1987.

Observations and comments:

Note 1:  ( )
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