Polycirrus chilensis Schmarda, 1861

Glasby, Christopher J. & Hutchings, Pat, 2014, Revision of the taxonomy of Polycirrus Grube, 1850 (Annelida: Terebellida: Polycirridae), Zootaxa 3877 (1), pp. 1-117 : 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.5137519

persistent identifier

https://treatment.plazi.org/id/03CD87A2-FFB0-FFFC-FF66-A11AC380A5BE

treatment provided by

Felipe

scientific name

Polycirrus chilensis Schmarda, 1861
status

 

Polycirrus chilensis Schmarda, 1861 View in CoL

Fig. 15a–e View FIGURE 15

Polycirrus chilensis Schmarda, 1861: 39 View in CoL .

Apneumea chilensis .— Quatrefages, 1865: 383.

Dejoces chilensis Kinberg, 1867: 348 View in CoL .

Type locality. Valparaiso, Chile .

Material examined. HOLOTYPE: SMNH 571 View Materials . Chile, Valparaiso, Ilongrotes, 33˚00.41′ S, 71˚36.37′ W, Eugene Expedition St. 488.

Description. Holotype poorly preserved but body wall and chaetae mainly intact, in two probably contiguous fragments, pale cream in colour; anterior fragment 10 mm long and 1.5 mm wide excluding buccal tentacles, consisting of approximately 25 segments; posterior fragment 5 mm long and 1 mm wide consisting of approximately 40 segments. Sex unknown.

Dorsum anteriorly papillose. Venter anteriorly with mid-ventral groove and discrete ventro-lateral pads; pads more-or-less smooth, extending from segment 2 to 11. Mid-ventral groove from segment 3 ( Fig. 15a View FIGURE 15 ).

Buccal tentacles of two types although few remain attached: (1) cylindrical, thickened distally, distinctly grooved and (2) cylindrical, uniformly thin, weakly grooved, both types 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 (medial lobe subtriangular), margin of medial lobe convoluted; oral surface glandular, ciliated, with grooves leading to mouth. Inner lower lip oblong, tessellated; outer region flat, shield-like, subtriangular and pointing toward mouth, ridged and grooved, extending posteriorly to segment 3. Achaetous segments visible dorsally but obscured by expanded outer lower lip ventrally ( Fig. 15a View FIGURE 15 ).

Notochaetigerous segments 35–37 (assuming two fragments are contiguous). Notopodia digitiform, prechaetal lobe low, postchaetal lobe digitiform, longer than prechaetal ( Fig. 15b View FIGURE 15 ). Notochaetae within a chaetiger consisting of two types (chaetigers 4, 23 examined), hirsute, uniformly tapered, posteriorly same form as those anteriorly; secondary notochaetae in all chaetigers pinnate ( Fig. 15c View FIGURE 15 ). Neurochaetae beginning on segment 8. Neuropodial tori ridge like. 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 present as low protuberance ( Fig. 15d–e View FIGURE 15 ).

Nephridial papillae present, globular. Pre-gular membrane nephridial papillae absent. Post-gular membrane nephridial papillae present, extending from segment 5 to 9; situated at base of notopodia. Pygidium smooth ring.

Kingdom

Animalia

Phylum

Annelida

Class

Polychaeta

Order

Terebellida

Family

Terebellidae

Genus

Polycirrus

Loc

Polycirrus chilensis Schmarda, 1861

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

Dejoces chilensis

Kinberg, J. G. H. 1867: 348
1867
Loc

Apneumea chilensis

Quatrefages, A. de 1865: 383
1865
Loc

Polycirrus chilensis

Schmarda, L. K. 1861: 39
1861
GBIF Dataset (for parent article) Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF