New Hyocrinid Crinoids (Echinodermata) from Submersible Investigations in the Pacific Ocean
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2004-10
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University of Hawai'i Press
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Abstract
A few specimens belonging to the deep-sea family Hyocrinidae
(stalked Crinoidea, Echinodermata) collected by submersible in the eastern and
western Pacific Ocean are described. Laubierierinus pentagonalis, n. genus, n. sp.,
from the North Fiji Rise is the first discovery of a hyocrinid crinoid with a
pentaradially symmetrical stalk. Hyocrinus biscoitoi, n. sp., from the East Pacific
Rise attains large size and has close affinities with H. giganteus from Horizon
Seamount. Additional information is given concerning H. foelli found near cold
seeps on the Mexican continental margin; H. cyanae, previously collected on
New Caledonian slopes; and Calamoerinus diomedae from the Cocos Ridge and
Galapagos slopes. For the latter, the first young specimens known document
ontogenetic trends in this famous species.
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Roux M. 2004. New hyocrinid crinoids (Echinodermata) from submersible investigations in the Pacific Ocean. Pac Sci 58(4): 597-613.
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