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2014 - vol. 8–18 >

Title :Two new records of Heterometra comatulids (Echinodermata: Crinoidea: Comatulida: Himerometridae) from Okinawa-jima Island, southwestern Japan
Title alternative :沖縄島沿岸から得られた国内初記録のハネウミシダ科2種について
Authors :Obuchi, Masami
Authors alternative :小渕, 正美
Issue Date :25-Jul-2014
Abstract :Two himerometrid comatulids from Okinawa-jima Island are reported as new to the Japanese crinoid fauna. Heterometra quinduplicava (Carpenter, 1888) was found on a shallow sandy bottom of a closed bay, which was previously considered as an unsuitable habitat for comatulids. The specimens on hand are much larger than previously known specimens, and differ in the extent of carination on proximal pinnules. Heterometra sarae AH Clark, 1941, was collected from a coral reef area. These records extend the geographic ranges of both species northward.
沖縄島沿岸から得られた2 種のハネウミシダ類を国内初記録として報告した.オオウラハネウミシダ(新称,大浦羽海羊歯)Heterometra quinduplicava (Carpenter, 1888)は,浅海産ウミシダ類としては珍しく,内湾の細砂底から得られ た.沖縄島産の標本は,これまで知られる本種の標本に比べて大型で,また,口部羽枝基部のキールの発達がより顕著であった.フクレハネウミシダ(新称,膨れ羽海羊歯)Heterometrasarae AH Clark, 1941 はサンゴ礁域から得られた.本報告により,これら2 種の分布域は北側に拡大された.
URL :http://w3.u-ryukyu.ac.jp/naruse/lab/Fauna_Ryukyuana.html
Type Local :雑誌掲載論文
ISSN :2187-6657
Publisher :琉球大学資料館 (風樹館)
URI :http://hdl.handle.net/20.500.12000/38630
Citation :Fauna Ryukyuana Vol.13 p.1 -9
Appears in Collections:2014 - vol. 8–18

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