Prionospio (Prionospio) dubia Day, 1961

Dagli, Ertan & Çinar, Melih Ertan, 2009, Species of the subgenera Aquilaspio and Prionospio (Polychaeta: Spionidae: Prionospio) from the southern coast of Turkey (Levantine Sea, eastern Mediterranean), with description of a new speci, Zootaxa 2275, pp. 1-20: 6

publication ID

10.5281/zenodo.191050

persistent identifier

http://treatment.plazi.org/id/9F7A3A46-E044-1453-FF0D-FEC3FC246C98

treatment provided by

Plazi

scientific name

Prionospio (Prionospio) dubia Day, 1961
status

 

Prionospio (Prionospio) dubia Day, 1961 

Prionospio malmgreni  var. dubia Day, 1961: 489  –490, fig. 3.

Prionospio (Prionospio) dubia: Maciolek 1985: 336  –339, figs. 2–3; Imajima 1990 a: 118 –121, figs. 8–9; Blake 1996: 130 – 133, fig. 4.12.

Material examined. ESFMAbout ESFM –POL/05– 1856, 1 specimen, 30 September 2005, Finike Bay, G 18, 36 º 16 ΄ 31 ΄΄N, 30 º 10 ΄ 50 ΄΄E, 75 m, mud; ESFMAbout ESFM –POL/05– 2030, 3 specimens, 30 September 2005, Finike Bay, G 19, 36 º 16 ΄0 6 ΄΄N, 30 º 11 ΄ 31 ΄΄E, 100 m, mud; ESFMAbout ESFM –POL/05– 1882, 2 specimens, 6 October 2005, Fethiye Bay, G 32, 36 º 38 ΄ 42 ΄΄N, 29 º03΄ 18 ΄΄E, 100 m, mud; ESFMAbout ESFM –POL/05– 1945, 1 specimen, 6 October 2005, Fethiye Bay, G 30, 36 º 39 ΄ 24 ΄΄N, 29 º04΄ 44 ΄΄E, 50 m, sandy mud.

Diagnosis. Largest specimen complete, 0.6 mm wide, 20.9 mm long, with 82 chaetigers. Prostomium rounded anteriorly, with a narrow caruncle reaching to posterior part of chaetiger 1. Eyes absent. Branchiae numbering four pairs; first and fourth pairs with long digitiform pinnules; first pair extending to chaetiger 6– 7; fourth pair short, reaching to chaetiger 7; second and third branchiae apinnate, similar in size. Noto- and neuropodial lamellae smallest on chaetiger 1; largest on chaetigers 3–4. Dorsal crests absent. Ventral sabre chaeta first present on chaetiger 18, numbering 1–2 per parapodium. Multidentate hooded hooks first appearing on neuropodia of chaetigers 18–20 and notopodia of chaetigers 37–48.

Remarks. The specimens examined in the present study agree with the original and subsequent descriptions of the species ( Day 1961; Maciolek 1985; Imajima 1990; Sigvaldadóttir & Mackie 1993). As reported by Maciolek (1985), Imajima (1990 a) and Sigvaldadóttir & Mackie (1993), P. (P) dubia  has a high variability in the first occurence of hooded hooks and sabre chaetae.

Ecology. The maximum population density (30 individuals.m - 2) of this species was encountered on muddy substratum at 100 m depth at station G 19 (Finike Bay).

Distribution. Western and Eastern North Atlantic, Pacific Ocean, Indian Ocean and Mediterranean Sea ( Blake 1996; Imajima 1990 a; Çinar & Ergen 1999); 17–2379 m.

ESFM

Museum of Faculty of Fisheries, Ege University

Kingdom

Animalia

Phylum

Annelida

Class

Polychaeta

Order

Spionida

Family

Spionidae

Genus

Prionospio

Loc

Prionospio (Prionospio) dubia Day, 1961

Dagli, Ertan & Çinar, Melih Ertan 2009

2009
Loc

Prionospio (Prionospio) dubia:

Blake 1996: 130
Imajima 1990: 118Maciolek 1985: 336

1990
Loc

Prionospio malmgreni

Day 1961: 489