The Paraonidae (Annelida: Sedentaria) from Norway and adjacent seas, with two new species, four new records, and a redescription of Paraonides nordica Strelzov, 1968 based on type material
Author
Sikorski, Andrey
text
Zootaxa
2017
2017-09-14
4320
1
41
67
journal article
32103
10.11646/zootaxa.4320.1.3
97eb2462-e968-4f36-81ab-fc2a832928ae
1175-5326
891538
878A01B5-C37C-4E46-8631-16927888D8D4
Aricidea (Strelzovia) quadrilobata
Webster & Benedict, 1887
Aricidea quadrilobata
Webster & Benedict, 1887
: 739
–740, pl. 7, figs 93–96;
Campoy 1981
: 16
, fig. 2.
Aricidea (Allia) quadrilobata
.—
Strelzov 1973
: 88
–91, fig. 37;
Gaston 1984
: 2.20–2.23, fig. 2.18.
Aricidea (Strelzovia) quadrilobata
.—
Aguirrezabalaga 2012
: 207
–210, figs 85–86.
Aricidea annae
Laubier, 1967
: 106
–112, figs 2–3.
Material
examined.
2785
Snøhvit SN
06;
71.4973°N
–
21.1317°E
;
343 m
;
12.06.2003
; seven specimens. 2876
Finnmark
660;
70.1617°N
–
21.4450°E
;
85 m
;
19.09.2003
; ten specimens. 3940
Askeladd Beta
SA–06;
71.4765°N
–
20.4416°E
;
274 m
;
27.06.2007
; one specimen. 3940
Askeladd Beta
SA–10;
71.4789°N
–
20.4405°E
;
275 m
;
27.06.2007
; one specimen. 4000
Nucula
N–01;
71.5504°N
–
25.2453°E
;
298 m
;
23.06.2007
; one specimen.
Diagnosis.
Antenna very long, reaching second chaetiger and further. Secondary ciliary organs present. Three prebranchial segments. Dorsal podial lobes of chaetigers 1 and 2 clearly shorter than those of chaetiger 3. Branchiae numbering up to 29 pairs; flat and abruptly tapering to a filiform tip. Modified notochaetae absent.
Modified neurochaetae gradually tapering, terminal spine as continuation of tip; ventral-most ones clearly thicker and more strongly curved than the rest
Distribution.
Western
Atlantic from
Maine
(
Webster & Benedict 1887
) to Gulf of
Mexico
(
Gaston 1984
), and from
Argentina
to
Uruguay
(
Strelzov 1973
).
Eastern
Atlantic, from
Norway
(
Rygg 2002
) to Bay of Biscay (
Campoy 1981
). Arctic, from the
Jan Mayen
(
Bakken
et al
. 2010
) to the Chukchi Sea (
Strelzov 1973
). Mediterranean (
Katzmann & Laubier 1975
). Subantarctic (
Strelzov 1973
).