Polycirrus carolinensis Day, 1973

Glasby, Christopher J. & Hutchings, Pat, 2014, Revision of the taxonomy of Polycirrus Grube, 1850 (Annelida: Terebellida: Polycirridae), Zootaxa 3877 (1), pp. 1-117 : 33-36

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.4948576

persistent identifier

https://treatment.plazi.org/id/03CD87A2-FFB3-FFFC-FF66-A52BC79DA2E0

treatment provided by

Felipe

scientific name

Polycirrus carolinensis Day, 1973
status

 

Polycirrus carolinensis Day, 1973 View in CoL

Fig. 14a–e View FIGURE 14

Polycirrus carolinensis Day, 1973: 122 View in CoL , fig. 16m –p.

Type locality. North Carolina, USA .

Material examined. HOLOTYPE: USNM 43122 About USNM , USA, off Beaufort North Carolina 34º04'N 75º25'W 20 m, coll. J.H. Day, 24.xi.1965. GoogleMaps

Description. Holotype well preserved, body wall cut in places to reveal nephridia, chaetae mainly intact, cream in colour, 10 mm long and 1.0 mm wide excluding buccal tentacles, complete with about 60 segments. Sex unknown, no coelomic gametes visible.

Dorsum anteriorly smooth, thin body wall. Venter anteriorly with mid-ventral groove and discrete ventrolateral pads; pads more-or-less smooth, extending from segment 4 to 10. Mid-ventral groove from segment 5 ( Fig. 14a View FIGURE 14 ).

Buccal tentacles detached (scars present) and missing, arising dorsally on prostomial ridge. Prostomial ridge distinctly curved, extending laterally along anterodorsal base of upper lip. Upper lip comprising single (medial) lobe only, margin of lobe convoluted; oral surface glandular and ciliated. Inner lower lip subtriangular, hidden by upper lip, smooth; outer region flat, shield-like, subtriangular and pointing toward mouth, smooth, extending to posterior margin of segment 3. Achaetous segments visible dorsally but obscured by expanded outer lower lip ventrally.

Notochaetigerous segments 29, extending to segment 31. Notopodia more-or-less rectangular with bulbous bases, lobes both similar, low, rounded ( Fig. 14b View FIGURE 14 ). Notochaetae consisting of two types (chaetigers 4, 18 examined), hirsute, uniformly tapered, posteriorly same form as those anteriorly; secondary notochaetae in all chaetigers pinnate ( Fig. 14c View FIGURE 14 ). Neurochaetae beginning on segment 8. Neuropodial tori ridge-like, differ along body, posterior ones slightly curved and erect. Uncini with short neck and straight to convex base (Type 1), teeth above main fang arranged in double transverse series (MF:1:7–10), enlarged median tooth above main fang present, subrostral process present as low, rounded protuberance ( Fig. 14d–e View FIGURE 14 ).

Nephridial papillae present, cylindrical, elongate. Pre-gular membrane nephridial papillae absent. Post-gular membrane nephridial papillae present, extending from segment 5 to 10; situated at ventral base of notopodia. Pygidium smooth ring.

Kingdom

Animalia

Phylum

Annelida

Class

Polychaeta

Order

Terebellida

Family

Terebellidae

Genus

Polycirrus

Loc

Polycirrus carolinensis Day, 1973

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

Polycirrus carolinensis

Day, J. H. 1973: 122
1973
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