Chaetozone and Caulleriella (Polychaeta: Cirratulidae) from the Pacific Coast of Costa Rica, with description of eight new species Author Dean, Harlan K. Author Blake, James A. text Zootaxa 2007 1451 41 68 journal article 10.5281/zenodo.176265 e5b7f616-8528-4813-93cd-819753d16855 1175-5326 176265 Genus Chaetozone Malmgren, 1867 Type species Chaetozone setosa Malmgren, 1867 Diagnosis. Prostomium conical, blunt or pointed anteriorly; peristomium elongate to short, with asetigerous annulations; dorsal tentacles emerging from peristomium or anterior setiger; middle body segments sometimes beaded or moniliform; setae include acicular spines in neuropodia and usually also in notopodia, sometimes forming posterior cinctures; bidentate spines sometimes present in juveniles or occasionally in posterior setigers of adults with unidentate spines in cinctures; pygidium simple lobe, disclike, or with long, terminal cirrus.