Polycirrus porcatus Knox & Cameron, 1971

Glasby, Christopher J. & Hutchings, Pat, 2014, Revision of the taxonomy of Polycirrus Grube, 1850 (Annelida: Terebellida: Polycirridae), Zootaxa 3877 (1), pp. 1-117 : 94

publication ID

https://doi.org/ 10.11646/zootaxa.3877.1.1

publication LSID

lsid:zoobank.org:pub:2695A2A6-2805-4FC6-B6B6-A8C68354B944

DOI

https://doi.org/10.5281/zenodo.4948755

persistent identifier

https://treatment.plazi.org/id/03CD87A2-FFCE-FF82-FF66-A2F0C4C3A6E2

treatment provided by

Felipe

scientific name

Polycirrus porcatus Knox & Cameron, 1971
status

 

Polycirrus porcatus Knox & Cameron, 1971

Fig. 52a–e View FIGURE 52 , Table 1 View TABLE 1

Polycirrus porcata Knox & Cameron, 1971: 36 View in CoL , figs 30–31.- Hutchings & Glasby, 1986: 341, figs 10a–d, 12F.

Type locality. Port Phillip Bay , Victoria, Australia .

Material examined. HOLOTYPE: MV F41757 View Materials , Australia, Victoria, Quiet Corner, Port Phillip Bay, Area 14. St.175, 37º58.2′ S, 145º1.2′ E, coll. 18.xii.1962. GoogleMaps

Description. Holotype poorly preserved with body wall damaged, chaetae mainly intact, pale cream in colour, 30 mm long and 4 mm maximum width, excluding buccal tentacles, complete with 35 segments. Sex female.

Dorsum anteriorly smooth. Venter anteriorly with mid-ventral groove and poorly defined ventrolateral pads; pads incised tessellated anteriorly. Mid-ventral groove from segment 3.

Buccal tentacles numerous of two types: (1) cylindrical, thickened distally and distinctly grooved and (2) cylindrical, uniformly thin and weakly grooved, both arising dorsally on prostomial ridge. Prostomial ridge slightly curved, extending laterally along anterodorsal base of upper lip. Upper lip trefoiled with lateral blindly-ending enclosed diverticulae, lateral lobes with crenulate margins, margin of medial lobe convoluted; oral surface glandular, ciliated, with grooves leading to mouth. Inner lower lip subtriangular, smooth; outer region flat, shieldlike, oblong, longer than wide, rugose, extending posteriorly to segment 3. Achaetous segments visible dorsally but obscured by expanded outer lower lip ventrally ( Fig. 52a View FIGURE 52 ).

Notochaetigerous segments 12, extending to segment 14. Notopodia more-or-less rectangular, prechaetal lobe low, postchaetal lobe subtriangular, slightly longer than prechaetal ( Fig. 52b View FIGURE 52 ). Notochaetae within a chaetiger consisting of one type (chaetigers 5 and mid-body one examined), gradually elongating from dorsal to ventral, hirsute, uniformly tapered, posteriorly same form as those anteriorly ( Fig. 52c View FIGURE 52 ). Neurochaetae beginning on segment 6. Neuropodial tori erect pinnules, differ along body, posterior ones with small notopodial cirrus. Uncini with long neck and concave base (Type 2), anterior-most ones more squat; teeth above main fang arranged in single transverse series (anterior-most ones; MF:3–4) or arranged in double transverse series (posterior ones; MF:3–4:∞) enlarged median tooth above main fang absent, subrostral process tooth-like ( Fig. 52d,e View FIGURE 52 ).

Nephridial papillae present, globular, initially small, increasing in size posteriorly. Pre-gular membrane nephridial papillae present on segment 4 only. Post-gular membrane nephridial papillae present, extending from segment 5 to 13; situated at antero-ventral base of notopodia. Pygidium papillated ring with about 8 papillae.

Comment. It should be noted that some of the original drawings of Knox & Cameron (1971) were mislabelled and these errors have been corrected in this paper.

MV

University of Montana Museum

Kingdom

Animalia

Phylum

Annelida

Class

Polychaeta

Order

Terebellida

Family

Terebellidae

Genus

Polycirrus

Loc

Polycirrus porcatus Knox & Cameron, 1971

Glasby, Christopher J. & Hutchings, Pat 2014
2014
Loc

Polycirrus porcata

Hutchings, P. A. & Glasby, C. J. 1986: 341
Knox, G. A. & Cameron, D. B. 1971: 36
1971
GBIF Dataset (for parent article) Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF