Cribrimorph and Other Cauloramphus Species (Bryozoa: Cheilostomata) from the Northwestern Pacific

Dick, Matthew H; Mawatari, Shunsuke F; Sanner, JoAnn; Grischenko, Andrei V

Cribrimorph and Other Cauloramphus Species (Bryozoa: Cheilostomata) from the Northwestern Pacific

Dick, Matthew H; Mawatari, Shunsuke F; Sanner, JoAnn et al.

Zoological Science, 2011, 28(2), 134-147

Permalink : https://hdl.handle.net/2115/49370

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アクセス権	open access
URI	https://hdl.handle.net/2115/49370
タイトル	Cribrimorph and Other Cauloramphus Species (Bryozoa: Cheilostomata) from the Northwestern Pacific
著者	Dick, Matthew H ; Mawatari, Shunsuke F ; Sanner, JoAnn ; Grischenko, Andrei V
e-Rad_Researcher 80374205 著者名 Dick, Matthew H
e-Rad_Researcher 50096913 著者名 Mawatari, Shunsuke F
著者名 Sanner, JoAnn
著者名 Grischenko, Andrei V
言語	英語
キーワード	Bryozoa
	Cauloramphus
	Cheilostomata
	disjunctus clade
	dispersal
	diversity
	new species
	phylogeny
	speciation
発行日	2011-02
出版者	Zoological Society of Japan
収録物名	Zoological Science
巻(号)	28(2)
ページ	134-147
抄録	We provide original descriptions for nine new species in the cheilostome bryozoan genus Cauloramphus (C. gracilis, C. Ordinarius, C. amphidisjunctus, C. cheliferoides, C. oshurkovi, C. infensus, C. parvus, C. peltatus, and C. ascofer) and a redescription of C. disjunctus Canu and Bassler, 1929. We delineate a group of eight species, here termed the ‘C. disjunctus clade,’ that have the opesial spine joints calcified to a greater or lesser extent in mature zooids; most also have paired, hypertrophied avicularia. This group includes C. amphidisjunctus, C. cheliferoides, C. infensus, C. parvus, C. peltatus, and C. ascofer in the Aleutian Islands, Alaska; C. oshurkovi in the Commander Islands; and C. disjunctus in Japan. High levels of apparent endemism in two unrelated bryozoan genera (Cauloramphus and Monoporella), and geographical population differentiation in C. ascofer indicating ongoing allopatric speciation, suggest high speciation rates for deep benthic bryozoans in the western Aleutians. A phylogenetic hypothesis for the C. disjunctus clade indicates that populations of Cauloramphus dispersed between the Aleutians and Asia on at least three separate occasions, and that the polarity of at least two of these dispersal events was from the Aleutians to Asia.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
権利情報	http://www.zoology.or.jp/html/02_magazine/02_index.htm
PISSN	0289-0003
関連情報	PMID 21303206
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.2108/ZSJ.28.134