Paradiopatra hispanica ( Amoureux, 1972 )

Arias, Andrés & Paxton, Hannelore, 2015, Paradiopatra Ehlers, 1887 (Annelida: Onuphidae) from southwestern Europe with the description of a new species and new ultramorphological data for the genus, Zootaxa 4040 (2), pp. 149-168 : 162-163

publication ID

https://doi.org/ 10.11646/zootaxa.4040.2.3

publication LSID

lsid:zoobank.org:pub:3D93C766-FFFA-4F4C-A297-BB3726CBB5C3

DOI

https://doi.org/10.5281/zenodo.5492103

persistent identifier

https://treatment.plazi.org/id/E45C8788-FF90-BC35-FF48-4528A79FFDD4

treatment provided by

Plazi

scientific name

Paradiopatra hispanica ( Amoureux, 1972 )
status

 

Paradiopatra hispanica ( Amoureux, 1972) View in CoL

Figures 9 View FIGURE 9 , 10 View FIGURE 10 , 12 View FIGURE 12

Nothria hispanica Amoureux, 1972: 76 View in CoL , figs. 2, 3; 1974a: 136 ( Portugal); 1974b: 114 (Bay of Biscay); 1982: 49; Campoy 1982: 554 –555.

Sarsonuphis hispanica View in CoL .— Fauchald 1982: 74; Glémarec 1991: 549.

Paradiopatra hispanica View in CoL .— Paxton 1986: 38; Aguirrezabalaga et al. 2002: 20 –23, fig. 2A–H (Capbreton Canyon); Paxton & Arias 2014: 898–899, fig. 5 (Bay of Biscay).

Material examined. Eight specimens (AM W45285), COCACE station G3 (43.88ºN – 06.11ºW), 571 m depth, 40.94% sand, 30.28% silt, 28.78% clay, Cantabrian Sea, Bay of Biscay, 0 3 Jul 1987; 5 specimens ( MNCN 16.01/ 16630), COCACE station I6 (43.92°N – 6.11°W), 1186 m depth, 38% sand, 30% silt, 32% clay, Cantabrian Sea, Bay of Biscay, 0 4 Jul 1987; Several from the same locality for SEM studies; 1 specimen (AM W27376), Capbreton Canyon, 43º50.32’N – 02º10.94’W, 495 m depth, Cantabrian Sea, Bay of Biscay, coll. RV “Côte d’Aquitaine”, 10 Jul 1988; 3 specimens ( MNCN 16.01/16631), N. Ribadesella (Asturias), 43º 49.76’- 43º49.89’ N –5º05.04’- 5º05.83’ W, 540-543 m depth, Cantabrian Sea, Bay of Biscay, coll. Fauna Ibérica II, 18 Jun 1991; 2 specimens ( MNCN 16.01/16632), COCACE station H4 (43.77º N – 06.17º W), 790 m depth, 49.30% sand, 26.01% silt, 24.69% clay, Cantabrian Sea, Bay of Biscay, 25 Oct 1987; 3 specimens ( MNCN 16.01/16633), COCACE station G1 (43.93º N – 5.66º W), 468 m depth, 67.54% sand, 16.64% silt, 15.82% clay, Cantabrian Sea, Bay of Biscay, 30 Jul 1987.

All specimens incomplete, lacking posterior ends; smallest specimen measuring 12 mm for 53 chaetigers, width 0.6 mm; largest specimen measuring 52 mm in length for 110 chaetigers, width 0.8 mm.

Diagnosis. Eyes absent; palps reaching chaetiger 1, lateral antennae reaching chaetiger 2–5 and median antenna chaetiger 1–3; ceratophores with 2–4 proximal rings and long distal ring, lacking lateral projections. Peristomial cirri present. Anterior three pairs of parapodia modified; ventral cirri subulate on first three to four chaetigers ( Fig. 9 View FIGURE 9 ), ventral glandular pads with a wide band consisting of two to three interrupted rows of cuticular pores ( Figs. 12 View FIGURE 12 C–E); subulate postchaetal lobes absent from chaetiger 9. Modified parapodia with pseudocompound bi- and tridentate falcigers with long pointed hoods; subacicular hooks starting from chaetigers 11–15; pectinate chaetae with 13–15 teeth, very sparse, present or absent in median and posterior parapodia, when present, never more than one per parapodium. Branchiae absent. Tube with inner parchment-like layer covered by thin, smooth muddy layer on distal part only, lower part only transparent secreted layer.

Variation. Paradiopatra hispanica displays a high degree of variability with respect to the number of anterior chaetigers with subulate ventral cirri and the first chaetiger with subacicular hooks; both characters are size-related ( Fig. 10 View FIGURE 10 ). The number of anterior chaetigers with subulate ventral cirri varies from two to four followed by one, two or three chaetigers with transitional ventral cirri shaped from subulate to round. Specimens of the smallest size had two ventral cirri followed by one to two chaetigers with transitional cirri ( Fig. 9 View FIGURE 9 B). Specimens larger than 0.4 mm had three chaetigers with subulate ventral cirri and specimens of the largest sizes (0.8–0.9 mm width) had three to four chaetigers with subulate ventral cirri, in the former followed by two chaetigers with transitional-shaped ventral cirri and with one in the latter ( Fig. 9 View FIGURE 9 A).

Remarks. This is a common species in the Bay of Biscay and Atlantic Iberian Peninsula and has been fully illustrated by Paxton & Arias (2014: Fig. 5 View FIGURE 5 ).

Distribution. Atlantic Iberian Peninsula ( Spain and Portugal), Bay of Biscay, English Channel SW of British Isles; at depths of 505-1113 m.

MNCN

Museo Nacional de Ciencias Naturales

Kingdom

Animalia

Phylum

Annelida

Class

Polychaeta

Order

Eunicida

Family

Onuphidae

Genus

Paradiopatra

Loc

Paradiopatra hispanica ( Amoureux, 1972 )

Arias, Andrés & Paxton, Hannelore 2015
2015
Loc

Paradiopatra hispanica

Aguirrezabalaga 2002: 20
Paxton 1986: 38
1986
Loc

Sarsonuphis hispanica

Glemarec 1991: 549
Fauchald 1982: 74
1982
Loc

Nothria hispanica

Campoy 1982: 554
Amoureux 1972: 76
1972
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