Serpulids (Annelida: Polychaeta) from the Eastern Pacific, including a brief mention of Hawaiian serpulids
Author
Bastida-Zavala, J. Rolando
text
Zootaxa
2008
2008-03-07
1722
1
61
journal article
11755334
Crucigera zygophora
(
Johnson, 1901
)
(
Figures 4E–F
)
Serpula zygophora
Johnson, 1901: 433–434
, pl. 19, figs. 205–208.
Type
locality:
Alki Point
,
Puget Sound
,
Washington
,
USA
.
Crucigera zygophora
.—
ten Hove and Jansen-Jacobs, 1984: 165–170
, figs. 4a–c, 5d, 8d, 9a–j, 10a, c–d, 11a–h, 12 (revision of the genus).
Material examined.
More than specimens:
Alaska
(
USA
),
LACM-AHF
N2128
(approx.
55º55’N
,
161º27’W
,
Canoe Bay
, north shore,
Alaska King Crab Investigation
, sta. 12–40,
Sept. 17, 1940
)
;
LACM-AHF
N2129
, several spec. (approx.
55º19’N
,
162º57’W
,
Cold Bay
,
Alaska King Crab Investigation
, sta. 70–
40, 27– 64 m
,
Oct. 17, 1940
)
;
LACM-AHF
N2789
(approx.
55º55’N
,
161º27’W
,
Canoe Bay
,
from crab trap
,
Sept. 23, 1940
, coll.
N.L. Schmitt
).
California
(
USA
)
,
LACM-AHF
N412
(approx.
38º15’N
,
122º58’W
,
Dillon Beach
,
Perch Rock Pt.
,
June
, 1941, coll.
S.F. Light
)
.
Diagnosis.
Tube smooth and thick-walled, lacks longitudinal ridges or alveoli, sometimes with peristomes. Opercular peduncle smooth, white. Base of operculum yoke-shaped, with a rounded dorsal process and two latero-ventral ones (
Fig. 4E
). Operculum nearly radially symmetrical funnel; funnel with 13–34 radii with rounded tips (
Figs 4E–F
). Collar with bayonet chaetae, with 1–2 blunt-short teeth and minute accessory teeth, distal blade smooth.
Habitat.
Depth:
27–64 m
;
ten Hove and Jansen-Jacobs (1984)
recorded it down to
250 m
.
Cold waters.
FIGURE 4.
A–B:
Crucigera irregularis
, from Alaska, LACM-AHF N2127. A–B, operculum, left and right view. C–D:
Crucigera websteri
, from California, LACM-AHF N8819. C–D, operculum, lateral and apical view. E:
Crucigera zygophora
, from Alaska, LACM-AHF N2128. E, operculum, lateral view. F:
Crucigera zygophora
, from California, LACM- AHF N412. F, operculum, lateral view.
Distribution.
North Pacific. North
Japan
,
Alaska
and North
California
(
USA
) (
ten Hove & Jansen-Jacobs
1984).