Polycirrus multisetigerus Hartmann-Schröder, 1962

Glasby, Christopher J. & Hutchings, Pat, 2014, Revision of the taxonomy of Polycirrus Grube, 1850 (Annelida: Terebellida: Polycirridae), Zootaxa 3877 (1), pp. 1-117 : 75

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.4948664

persistent identifier

https://treatment.plazi.org/id/03CD87A2-FFD9-FF95-FF66-A3CAC528A7AB

treatment provided by

Felipe

scientific name

Polycirrus multisetigerus Hartmann-Schröder, 1962
status

 

Polycirrus multisetigerus Hartmann-Schröder, 1962 View in CoL

Fig. 40a–f View FIGURE 40

Polycirrus multisetigerus Hartmann-Schröder, 1962: 158–160 View in CoL , figs 207–210.

Type locality. Isla James, Chile.

Material examined. HOLOTYPE: HZM P15172, Chile, Isla James , Puerto Lagunas, 54°56ʹ S, 67°37ʹ W, intertidal, in the holdfasts of Macroystis pyrifera. coll. 12.viii.1953 by Stuardo. GoogleMaps

Description. Holotype pinkish brown in colour, 15 mm long, 1.3 mm wide excluding buccal tentacles, incomplete with approximately 70 segments. Sex unknown. Type well preserved except that body wall damaged at chaetiger 10 on one side of the body, chaetae mainly intact.

Dorsum anteriorly tessellated. Venter anteriorly with mid-ventral groove and discrete ventro-lateral pads; pads extending from segment 2 to 11, incised with deep transverse grooves. Mid-ventral groove from segment 3 ( Fig. 40a View FIGURE 40 ).

Buccal tentacles numerous, of two types: (1) cylindrical, thickened distally and distinctly grooved and (2) cylindrical, uniformly thin and weakly grooved, some shorter than others, both arising at junction between prostomium and upper lip. Prostomial ridge distinctly curved, extending laterally along anterodorsal base of upper lip. Upper lip trefoiled, small wing-like lobes laterally, margin of medial lobe convoluted; oral surface glandular, ciliated, with grooves leading to mouth. Inner lower lip oblong, smooth; outer region flat, shield-like, subtriangular and pointing towards mouth, tessellated, extending posteriorly to segment 3. Achaetous segments visible dorsally but obscured by expanded outer lower lip ventrally ( Fig. 40a View FIGURE 40 ).

Notochaetigerous segments 48, extending to segment 50. Notopodia more-or-less rectangular, lobes triangular, postchaetal lobe longer than prechaetal, especially in anterior notopodia ( Fig. 40b View FIGURE 40 ). Notochaetae within a chaetiger consisting of two types (chaetigers 4, 14 examined), smooth, narrowly winged, wings appearing striated under high power, subdistally expanded, posteriorly same form as those anteriorly; secondary notochaetae in all chaetigers pinnate ( Fig. 40c, d View FIGURE 40 ). Neurochaetae beginning on segment 8. Neuropodial tori ridge-like, similar along body. Uncini with short neck and straight to convex base (Type 1), teeth above main fang arranged in double transverse series (MF:1:∞) enlarged median tooth above main fang present, subrostral process absent ( Fig. 40e, f View FIGURE 40 ).

Nephridial papillae present, spherical. Pre-gular membrane nephridial papillae absent. Post-gular membrane nephridial papillae present, extending from segment 5 to 8.

HZM

Museum of Natural History (Hrvatski Zooloski Muzej)

Kingdom

Animalia

Phylum

Annelida

Class

Polychaeta

Order

Terebellida

Family

Terebellidae

Genus

Polycirrus

Loc

Polycirrus multisetigerus Hartmann-Schröder, 1962

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

Polycirrus multisetigerus Hartmann-Schröder, 1962: 158–160

Hartmann-Schroder, G. 1962: 160
1962
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