Tenellia sp. #21
|Maximum size: 3 mm.
animal is light brown frosted with iridescent, violet-blue flecks.
There are a few yellow-white spots on the rhinophores and cephalic
tentacles. The body, rhinophores, cephalic tentacles and cerata contain
elaborate ramifications of the digestive gland. In the cerata, they
form flattened patches running along the sides.
The one known Tenellia sp. #21 was found in rubble
at a depth of 6-12 m (20-40 ft) at a moderately exposed site.
The elaborate ramifications of the digestive gland suggest that it may
retain zooxanthellae. (Note 1)
It was first
recorded in Hawaii from Koloa Landing, Kauai
by CP on May 26, 2010 and was formerly placed in the genus Cuthona.
Photo: CP: 3
mm: Koloa Landing, Kauai; May 26, 2010.
Observations and comments:
1: Perhaps, the pattern of brown showing through the cerata mimics hydroid polyps?