WoRMS source details
Blake, James A. (2006). New species and records of deep-water Cirratulidae (Polychaeta) from off Northern California. Scientia Marina. 70 (Supplement 3): 45-57.
342086
Blake, James A
2006
New species and records of deep-water Cirratulidae (Polychaeta) from off Northern California
Scientia Marina
70 (Supplement 3): 45-57
Publication
World Polychaeta Database
Available for editors [request]
Polychaetes of the family Cirratulidae are among the most important macrofaunal invertebrates in deep-sea benthic communities off northern California. The genus Chaetozone includes several species that are among the dominant species in depths of 2400-3200 m. Four of the most common species of Chaetozone are described in this paper. Of these four species, only C. spinosa Moore, 1903 has been previously described. Three other species are new to science. C. brunnea, n. sp. has a short, triangular-shaped prostomium, brown body colour, and an enlarged “stomach” which distends the body in a characteristic pattern. C. allanotai, n. sp. has a unique methyl green staining pattern that provides a means to readily identify juveniles and fragmented adults. A third new species, C. palaea, n. sp has posterior spines that are unusually broad, providing a spectacular armature. These species are compared with the type species, C. setosa from the Arctic. New details concerning segmentation of the anterior end, morphology of the nuchal organs, and posterior spines, represent a suite of characters that, in combination, will be used in a phylogenetic analysis of cirratulid polychaetes.
California quadrant
Systematics, Taxonomy
Chaetozone allanotai Blake, 2006 (original description)
Chaetozone brunnea Blake, 2006 (original description)
Chaetozone palaea Blake, 2006 (original description)
Chaetozone spinosa Moore, 1903 (taxonomy source)
Chaetozone brunnea Blake, 2006 (original description)
Chaetozone palaea Blake, 2006 (original description)
Chaetozone spinosa Moore, 1903 (taxonomy source)
Holotype LACM LACM-AHF Poly 2157, geounit California, identified as Chaetozone palaea Blake, 2006
Holotype LACM LACM-AHF Poly 2162, geounit California, identified as Chaetozone brunnea Blake, 2006
Holotype LACM LACM-AHF Poly 2166, geounit California, identified as Chaetozone allanotai Blake, 2006
Holotype LACM LACM-AHF Poly 2162, geounit California, identified as Chaetozone brunnea Blake, 2006
Holotype LACM LACM-AHF Poly 2166, geounit California, identified as Chaetozone allanotai Blake, 2006
Etymology
author: "named [allanotai] after Mr. Allan Ota, U.S. Environmental Protection Agency, San Francisco [details]
Etymology
author: "epithet “brunnea” is from the Medieval Latin brunneus, referring to the distinctive brown coloration ... [details]
Etymology
author: "epithet “palaea” refers to the very broad posterior spines that characterize the species" [details]
Type locality
California continental slope, San Francisco Deep Ocean Disposal Site (SF-DODS) west of Farallon Islands, Sta. 92, ... [details]
Type locality
San Francisco Deep Ocean Disposal Site (SF-DODS) west of Farallon Islands, Sta. 108, 37.6492, -123.4156 ... [details]
Type locality
continental slope off San Francisco, 37.4172, -123.3 (37º25.03´N, 123º18.00´W), 1745 m [details]