Description |
1 online resource (iv, 55 pages) : illustrations. |
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text txt rdacontent |
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computer c rdamedia |
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online resource cr rdacarrier |
Series |
Smithsonian contributions to zoology ; no. 634 |
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Smithsonian contributions to zoology ; no. 634.
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Note |
Title from title screen (viewed on July 22, 2011). |
Bibliography |
Includes bibliographical references and index. |
Access |
Use copy Restrictions unspecified star MiAaHDL |
Summary |
Nineteen of the 31 octocoral species (61%) known from the Aleutian Islands belong to family Primnoidae, which form large deep-water (9-2,514 m) colonies providing habitat for one of the most productive fisheries in the North Pacific. These 19 species are described or redescribed and figured unless recent descriptions have been published. Eight new species are described, two in the genus Thouarella and six in the genus Plumarella. These two genera are redefined and differentiated by emphasizing the nature (keeled or not) of the inner side of their marginal scales and the inner side's articulation or lack thereof with the outer surface of the underlying opercular scales. Dicholaphis is proposed as a new subgeneric rank of the genus Plumarella, characterized by having polyps arranged on all sides of its branchlets, not on alternate opposite sides. A key is provided for the eight species of Aleutian Plumarella, and all 35 valid species in the genus are listed, including three new combinations: P. superba, P. abietina, and P. recta. A history of the Aleutian primnoids is recounted. Six primnoid species are reported from the Bering Sea, all of which also occur in the Aleutian Islands. Two-thirds of the Aleutian-Bering Sea primnoids are endemic to this region. |
Reproduction |
Electronic reproduction. [S.l.] : HathiTrust Digital Library, 2011. MiAaHDL |
System Details |
Master and use copy. Digital master created according to Benchmark for Faithful Digital Reproductions of Monographs and Serials, Version 1. Digital Library Federation, December 2002. http://purl.oclc.org/DLF/benchrepro0212 MiAaHDL |
Processing Action |
digitized 2011 HathiTrust Digital Library committed to preserve pda MiAaHDL |
Subject |
Primnoidae -- Alaska -- Aleutian Islands -- Classification.
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Primnoidae -- Bering Sea -- Classification.
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Primnoidae. (OCoLC)fst01746994
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Alaska -- Aleutian Islands.
(OCoLC)fst01239641
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Pacific Ocean -- Bering Sea.
(OCoLC)fst01242466
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Genre/Form |
Classification. (OCoLC)fst01697073
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Added Author |
Smithsonian Institution.
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Other Form: |
Print version: Cairns, Stephen D. (Stephen Douglas), 1949- Revision of the Primnoidae (Octocorallia: Alcyonacea) from the Aleutian Islands and Bering Sea (DLC) 2010045753 (OCoLC)676068682 |
Standard No. |
NZ1 15377911 |
Gpo Item No. |
0910-D (online) |
Sudoc No. |
SI 1.27:634 |
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