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Additional Photos
side
trio
feeding
carrying eggs
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Tenellia sp. #16
Maximum size: 10 mm.
Identification:
This is a translucent-gray aeolid flecked with white. The rhinophores
and cephalic tentacles are frosted with white. The ceratal core is
mottled orange-brown to greenish and the tips of the cerata are translucent-violet with narrow, subapical
red-brown bands.
Natural history:
Tenellia
sp. #16 has been recorded from
test panels set in Pearl Harbor, Oahu; from a frayed buoy line at a
depth of about 6 m (20 ft) on the Big Island and from a protected, silty site on the Big Island. The latter animals were found
on an orange-pink hydroid (Corydendrium cf. parasiticum) in association with Unidentia sp. #1. It appears to feed on that hydroid. (Note 1)
Distribution:
Big Island and Oahu: also recorded from Guam.
Taxonomic notes:
It
was first recorded in Hawaii from Pearl Harbor, Oahu by Clay Carlson(?) and was formerly placed in the genus Cuthona. (Note 2)
Photo: Kate Butler: 5-10 mm: Kawaihae, Big Island, July 9, 2022.
Observations and comments:
Note
1: Perhaps, it's a direct developer based on the small number of relatively large eggs carried internally?
Note 2: It may be an introduction from Guam via ships coming to Hawaii for dry dock.
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