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Blake, James A. (2015). New species of Chaetozone and Tharyx (Polychaeta: Cirratulidae) from the Alaskan and Canadian Arctic and the Northeastern Pacific, including a description of the lectotype of Chaetozone setosa Malmgren from Spitsbergen in the Norwegian Arctic. Zootaxa. 3919(3): 501-552.
196120
10.11646/zootaxa.3919.3.5 [view]
urn:lsid:zoobank.org:pub:743AF37E-54B4-4BCB-A3E8-93092F779A20 [view]
Blake, James A.
2015
New species of <em>Chaetozone</em> and <em>Tharyx</em> (Polychaeta: Cirratulidae) from the Alaskan and Canadian Arctic and the Northeastern Pacific, including a description of the lectotype of <em>Chaetozone</em> <em>setosa</em> Malmgren from Spitsbergen in the Norwegian Arctic
Zootaxa
3919(3): 501-552
Publication
World Polychaeta Database (WPolyDb). Article is open access
Eight new species of cirratulid polychaetes of the genus Chaetozone from the Alaskan (Beaufort Sea) and Canadian Arctic (Baffin Island, Baffin Bay, Labrador, Hudson Strait, and Hudson Bay) and the Northeastern Pacific are reported together with two new species of Tharyx from the Alaskan Beaufort Sea and the Strait of Juan de Fuca. The new species of Chaetozone and Tharyx are compared with related species; distinct species groups within these genera are discussed. A redescription of C. setosa Malmgren, 1867, the type species of the genus from Spitsbergen, based on a lectotype and associated paralectotypes designated by the late Dr. Mary E. Petersen is presented. A review of characters important in the taxonomy of the genera Chaetozone and Tharyx is presented. A key to species of Chaetozone from the Northeastern Pacific and North American Arctic is provided.
Arctic-Boreal marine
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BibTex (BibDesk, LaTeX)
Date
action
by
2015-02-18 03:09:26Z
created
2015-02-18 21:51:15Z
changed

Chaetozone Malmgren, 1867 (redescription)
Chaetozone Malmgren, 1867 (identification resource)
Chaetozone setosa Malmgren, 1867 (redescription)
Spitsbergen for Chaetozone setosa Malmgren, 1867 
 Diagnosis

Blake (2015:504) "Prostomium blunt to conical, peristomium elongate to short, usually lacking eye spots, with a ... [details]

 Diagnosis

Chaetozone setosa is readily distinguished from most related species by having a separate achaetous segment ... [details]

 Distribution

Canadian Arctic and subarctic, in deep water of the Hudson Strait, 393 m and offshore, Baffin Bay, 1745 m, plus a ... [details]

 Distribution

Southeastern Alaska to British Columbia, subtidal, 12‒95 m [details]

 Distribution

Known from the Beaufort Sea, Alaska, to Hudson Strait, Canada, in shallow depths; Aleutian Islands; intertidal to 55 m. [details]

 Distribution

British Columbia and SE Alaska, low water to 95 m [details]

 Distribution

continental shelf sediments, offshore Oregon, 109 m [details]

 Distribution

Widely distributed across the North American Arctic, Baffin Island, Labrador, and the Beaufort Sea, offshore Point ... [details]

 Distribution

Puget Sound, in silt and clay, shallow water, 9 m [details]

 Distribution

Alaskan Arctic in shallow water, 3 m [details]

 Distribution

Chaetozone setosa is limited to Arctic and subarctic areas around Spitsbergen, other areas of northern Europe, and ... [details]

 Distribution

Alaska, Beaufort Sea, shallow subtidal to 128 m offshore [details]

 Distribution

shallow subtidal habitats in the Puget Sound [details]

 Etymology

bathyala derived from the Greek, bathys, for deep, in regard to the deep water occurrences. [details]

 Etymology

Name derived from Latin camur, for crooked or curving inward, combined with seta, referring to the manner in which ... [details]

 Etymology

Named after benthic ecologist Dr. Andrew (Drew) G. Carey, Oregon State University, Corvallis, Oregon. [details]

 Etymology

Named for the late Katharine D. Hobson, in recognition of her work on the polychaete fauna of British Columbia. [details]

 Etymology

Named after Dr. A. J. Malmgren, who described the first species of Chaetozone, C. setosa, in his classic work on ... [details]

 Etymology

Named for the pigment spots found on the bodies of all specimens [details]

 Etymology

Named after the type locality area, Puget Sound [details]

 Etymology

Named after R. Eugene Ruff, who provided material for the paper. [details]

 Etymology

Named after Alaska, where the species occurs and appears to be endemic. [details]

 Etymology

Name derived from Latin circa for around or near, combined with the Latin term acutus for sharp pointed. The ... [details]

 Type designation

The type is a lectotype recorded as SMNH 1493-03. Petersen (1999:111) designated this lectotype from SMNH 1493 (in ... [details]

 Type locality

Western Hudson Strait, 63.0678 -74.5667, 393 m [details]

 Type locality

Upper Boca de Quadra, Southeastern Alaska, 55.32, -130.4867, 95 m [details]

 Type locality

off Pitt Point, Beaufort Sea, 71.3167 -152.6417, 55 m [details]

 Type locality

off Ridley Island, Prince Rupert, British Columbia, 54.2059 -130.3328, 18 m [details]

 Type locality

off Tillamook Head, Clapsop County, Oregon, 45.8933 -124.1983, 109 m [details]

 Type locality

offshore East Angiak Island, Baffin Island, 65.7167 -62.0833, 132-145 m [details]

 Type locality

Decatur Island, Puget Sound, San Juan Islands, 48.5022 -122.8250, 9 m [details]

 Type locality

Prudhoe Bay, Beaufort Sea, 70.3983 -148.4333, 3 m [details]

 Type locality

Isfjorden, Spitsbergen, 55 m, geolocation estimated (gazetteer) 78.3412, 15.1792 [details]

 Type locality

Prudhoe Bay, Beaufort Sea, 70.4017 -148.5383, 2.5 m [details]

 Type locality

east central Port Angeles Harbor, Strait of Juan de Fuca, Washington, 48.1317, -123.3881, 29.5 m [details]

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