Chaetozone Malmgren 1867 ...
Genus Chaetozone Malmgren, 1867 Type species: Chaetozone setosa Malmgren, by monotypy. Diagnosis. Prostomium blunt to conical, peristomium elongate to short, usually lacking eye spots, with a pair of small nuchal slits or depressions at posterior edge; with a single pair of grooved dorsal tentacles...
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Zenodo
2015
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| Online Access: | https://dx.doi.org/10.5281/zenodo.5664926 https://zenodo.org/doi/10.5281/zenodo.5664926 |
| Summary: | Genus Chaetozone Malmgren, 1867 Type species: Chaetozone setosa Malmgren, by monotypy. Diagnosis. Prostomium blunt to conical, peristomium elongate to short, usually lacking eye spots, with a pair of small nuchal slits or depressions at posterior edge; with a single pair of grooved dorsal tentacles arising from posterior edge of peristomium, or sometimes more posterior on an achaetous anterior segment, or rarely an anterior setiger. First pair of branchiae arising from an achaetous segment or first setiger; or sometimes with first two pairs of branchiae on a single anterior segment. Body basically thick and fusiform over many segments, rarely with middle or posterior body segments beaded or moniliform. Setae include capillaries on most setigers and acicular spines in neuropodia and/or notopodia, spines typically concentrated in posterior segments, forming distinct cinctures with spines emerging from elevated membranes; cinctures with few to many spines and with none to many alternating capillaries; some ... : Published as part of 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, pp. 501-552 in Zootaxa 3919 (3) on page 504, DOI: 10.11646/zootaxa.3919.3.5, http://zenodo.org/record/234051 ... |
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