Prionospio (Prionospio) fallax Söderström, 1920

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: 11

publication ID

10.5281/zenodo.191050

persistent identifier

http://treatment.plazi.org/id/9F7A3A46-E04B-145C-FF0D-FE8EFADC6E9D

treatment provided by

Plazi

scientific name

Prionospio (Prionospio) fallax Söderström, 1920
status

 

Prionospio (Prionospio) fallax Söderström, 1920 

Prionospio fallax Söderström, 1920: 235  –237 figs. 135, 144–145; Sigvaldadóttir & Mackie 1993: 207 –211, figs. 3–4 Prionospio (Prionospio) fallax: Johnson 1984  :6.49–6.51, figs. 6–39, 6 – 40.

Material examined. ESFMAbout ESFM –POL/05– 279, 7 specimens, 9 September 2005, Iskenderun Bay, G 1, 36 º 35 ΄ 37 ΄΄N, 36 º 11 ΄ 9 ΄΄E, 5 m, mud; ESFMAbout ESFM –POL/05– 506, 20 specimens, 17 September 2005, Mersin Bay, G 7, 36 º 46 ΄ 46 ΄΄N, 34 º 39 ΄ 39 ΄΄E, 10 m, mud; ESFMAbout ESFM –POL/05– 992, 7 specimens, 23 September 2005, Anamur, D 27, 36 º04΄ 28 ΄΄N, 32 º 53 ΄0 3 ΄΄E, 10 m, muddy sand; ESFMAbout ESFM –POL/05– 861, 20 specimens, 23 September 2005, Mersin Bay, D 28, 36 º03΄ 37 ΄΄N, 32 º 53 ΄ 11 ΄΄E, 25 m, sand; ESFMAbout ESFM –POL/05– 1438, 2 specimens, 26 September 2005, Antalya Bay, K 34, 36 º 50 ΄ 25 ΄΄N, 30 º 48 ΄ 30 ΄΄E, 5 m, sand; ESFMAbout ESFM –POL/05– 1648, 1 specimen, 27 September 2005, Antalya Bay, D 39, 36 º 48 ΄ 49 ΄΄N, 30 º 37 ΄ 57 ΄΄E, 100 m, mud; ESFMAbout ESFM –POL/05– 1749, 6 specimens, 30 September 2005, Finike, G 15, 36 º 17 ΄ 34 ΄΄N, 30 º09΄ 33 ΄΄E, 10 m, muddy sand; ESFMAbout ESFM –POL/05– 1860, 1 specimen, 30 September 2005, Finike, G 18, 36 º 16 ΄ 31 ΄΄N, 30 º 10 ΄ 50 ΄΄E, 75 m, mud; ESFMAbout ESFM –POL/05– 1989, 5 specimens, 30 September 2005, Finike, G 16, 36 º 17 ΄0 7 ΄΄N, 30 º 10 ΄0 2 ΄΄E, 25 m, sandy mud; ESFMAbout ESFM –POL/05– 3195, 1 specimen, 3 October 2005, Kekova, K 44, 36 º 11 ΄ 26 ΄΄N, 29 º 50 ΄ 51 ΄΄E, 3 m, Zostera marina  ; ESFMAbout ESFM –POL/05– 1516, 45 specimens, 5 October 2005, Fethiye Bay, K 50, 36 º 38 ΄ 40 ΄΄N, 29 º05΄ 30 ΄΄E, 5 m, muddy sand; ESFMAbout ESFM –POL/05– 3196, 135 specimens, 6 October 2005, Fethiye Bay, G 27 36 º 37 ΄ 46 ΄΄N, 29 º06΄ 32 ΄΄E, 5 m, muddy sand; ESFMAbout ESFM –POL/05– 1547, 1 specimen, 6 October 2005, Fethiye Bay, G 28, 36 º 37 ΄ 48 ΄΄N, 29 º06΄ 30 ΄΄E, 10 m, mud; ESFMAbout ESFM –POL/05– 2361, 21 specimens, 7 October 2005, Göcek, K 53, 36 º 44 ΄ 20 ΄΄N, 28 º 55 ΄ 43 ΄΄ 3 m, Zostera marina  .

Diagnosis. Specimen complate, 0.6 mm wide, 14.2 mm long, with 67 chaetigers. Color in alcohol opaque white. Prostomium anteriorly truncated, lateral margins slightly concave, posterior part forming a short caruncle extending to anterior margin of chaetiger 2. Two pairs of eyes; anterior pair small, spherical; posterior pair large, reniform. Four pairs of branchiae on chaetigers 2–5; first and fourth pairs pinnate, nearly equal in size; second and third pairs apinnate, shorter than pinnate pairs. Noto- and neuropodial postchaetal lamellae smallest on chaetiger 1; notopodial lamellae foliaceus, largest on chaetigers 3–4; rounded on following chaetigers. Neuropodial postchaetal lamellae largest in branchial region; subrectangular and ventrally pointed on chaetiger 2; squarish to rounded on anterior and middle chaetigers, becoming rather inconspicuous on posterior chaetigers. Dorsal crest present on dorsum of chaetiger 7 only. Interpapodial pouches absent. Ventral sabre chaeta first present on chaetiger 10, numbering 1–2 per fascicle. Multidentate hooded hooks first appearing on neuropodia of chaetiger 11, on notopodia of chaetigers 22–24.

Remarks. The Mediterranean specimens agree with the original and subsequent descriptions of the species ( Söderström 1920, Sigvaldadóttir & Mackie 1993).

Ecology. The highest population density (1350 individuals.m - 2) of this species was found on muddy sand substratum at 5 m depth at station G 27 (Fethiye Bay).

Distribution. Northeast Atlantic, from northern Atlantic to Mediterranean ( Sigvaldadóttir & Mackie 1993); western Atlantic ( Johnson 1984); Mediterranean Sea ( Ergen 1979; Çinar & Ergen 1999); 2– 440 m.

ESFM

Museum of Faculty of Fisheries, Ege University

Kingdom

Animalia

Phylum

Annelida

Class

Polychaeta

Order

Spionida

Family

Spionidae

Genus

Prionospio

Loc

Prionospio (Prionospio) fallax Söderström, 1920

Dagli, Ertan & Çinar, Melih Ertan 2009

2009
Loc

Prionospio fallax Söderström, 1920 : 235

Sigvaldadottir 1993: 207Soderstrom 1920: 235

1993