Proscoloplos cygnochaetus Day, 1954

Zhadan, Anna, 2020, Review of Orbiniidae (Annelida, Sedentaria) from Australia, Zootaxa 4860 (4), pp. 451-502 : 493

publication ID

https://doi.org/10.11646/zootaxa.4860.4.1

publication LSID

lsid:zoobank.org:pub:876F1085-5296-4340-A951-41420C011917

DOI

https://doi.org/10.5281/zenodo.4414240

persistent identifier

https://treatment.plazi.org/id/03A787FE-3B7A-085A-ABBF-FE46FECC478E

treatment provided by

Plazi

scientific name

Proscoloplos cygnochaetus Day, 1954
status

 

Proscoloplos cygnochaetus Day, 1954

Figure 25 View FIGURE 25

Proscoloplos cygnochaetus Day, 1954: 21 , fig. 3a–f; 1967: 538, fig. 23.1e–g; Meyer et al. 2008: 879–889, fig. 1; Blake 2017: 118–120 View Cited Treatment , fig. 58a–f.

Proscoloplos confusus: Hartmann-Schröder 1962: 133–134 , figs. 161–164.

Proscoloplos bondi: Kelaher & Rouse 2003: 909–917 , fig. 2.

Material examined. Western Australia: King George Sound, Vancouver Peninsula, near Mistaken Island , 35°04’S, 117°56’E, 13.12.1983, intertidal, coll. H.E. Stoddart, AM W.23614, 6 specimens GoogleMaps . New South Wales: Ben Buckler rocks at north end of Bondi Beach , coralline algal turf, 29.05.2000, coll. G. Rouse, 33°53’42”S, 151°16’48”E, AM W.29015, paratypes of P. bondi , 7 specimens GoogleMaps .

Type locality. Tristan da Cunha .

Description. Body width 150–300 µm, length 2–3 mm, 22–38 chaetigers ( Fig. 25A, C View FIGURE 25 ). Prostomium round, without eyes, two peristomial segments ( Fig. 25 View FIGURE 25 A–D). Transition from thorax to abdomen indistinct. Branchiae from chaetiger 6–8, oval, same length as notopodia or slightly longer ( Fig. 25A, B View FIGURE 25 ). Notopodial postchaetal lobes digitiform, increasing towards posterior ( Fig. 25A, D View FIGURE 25 ). Neuropodial lobes short, papilliform, almost disappearing in abdomen ( Fig. 25A View FIGURE 25 ). Notochaetae crenulated capillaries in all segments; neurochaetae crenulated capillaries in all segments, besides swan-shaped chaetae in abdominal segments (starting from chaetiger 6–9) ( Fig. 25B, E View FIGURE 25 ). Pygidium with four short cirri ( Fig. 25A, C View FIGURE 25 ).

Distribution (bases on literature). Chile, Argentina, South Africa, Atlantic French coast, Australia, Western Australia, New South Wales.

Habitat. Intertidal and upper subtidal, sand, algae.

Remarks. Proscoloplos cygnochaetus was described from the South Atlantic Ocean, Tristan da Cunha Island ( Day, 1954). Since, this species has been redescribed by Kelaher & Rouse (2003) (as P. bondi ), Meyer et al. (2008), and Blake (2017). Meyer et al. (2007) investigated both morphological and molecular data on three Proscoloplos species and concluded that Proscoloplos confusus Hartmann-Schröder, 1962 and Proscoloplos bondi Kelaher & Rouse, 2003 are junior synonyms of P. cygnochaetus . This was accepted by Blake (2017). The specimens studied here are in agreement with previous descriptions. The present study expands the distribution of P. cygnochaetus to Western Australia.

AM

Australian Museum

Kingdom

Animalia

Phylum

Annelida

Class

Polychaeta

Family

Orbiniidae

Genus

Proscoloplos

Loc

Proscoloplos cygnochaetus Day, 1954

Zhadan, Anna 2020
2020
Loc

Proscoloplos bondi: Kelaher & Rouse 2003: 909–917

Kelaher, B. P. & Rouse, G. W. 2003: 917
2003
Loc

Proscoloplos confusus: Hartmann-Schröder 1962: 133–134

Hartmann-Schroder, G. 1962: 134
1962
Loc

Proscoloplos cygnochaetus

Blake, J. A. 2017: 118
Meyer, A. & Bleidorn, C. & Rouse, G. W. & Hausen, H. 2008: 879
Day, J. H. 1954: 21
1954