Leitoscoloplos latibranchus Day, 1977

Zhadan, Anna, 2020, Review of Orbiniidae (Annelida, Sedentaria) from Australia, Zootaxa 4860 (4), pp. 451-502: 469

publication ID

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

publication LSID

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

DOI

http://doi.org/10.5281/zenodo.4414153

persistent identifier

http://treatment.plazi.org/id/03A787FE-3B42-0862-ABBF-FD69FC58442B

treatment provided by

Plazi

scientific name

Leitoscoloplos latibranchus Day, 1977
status

 

Leitoscoloplos latibranchus Day, 1977  

Figure 10 View FIGURE 10

Leitoscoloplos latibranchus Day, 1977:225–226   , fig. 1e–g; Mackie 1987: 12–13, fig. 12a–e.

Material examined. Queensland: Calliope River, Gladstone, 23°51’S, 151°10’E, coll. P. Saenger, AM W.199322, many specimens. South Australia: mouth of the Murray River , 35°32’S, 138°50’ E, 31.12.1971, coll. P.A. Hutchings, under boulders in mud, AM W.7347, Holotype and paratyes AM W.7356, 8 specimens, all from same locality. GoogleMaps  

Type locality. Murray River Heads, South Australia   .

Description. Small worms, thoracic width 0.8 mm, body length about 20 mm in holotype ( Fig. 10A, B View FIGURE 10 ). Body cylindrical, thorax only slightly flattened; 16–17 thoracic chaetigers ( Fig. 10 View FIGURE 10 A–D). Branchiae from chaetiger 19–21 as small, triangular lamellae, then increasing in size and becoming broad and low triangular, often with tips drawn towards medial line of body, branchiae becoming narrower near pygidium ( Fig. 10D, F, G, I View FIGURE 10 ). Thoracic postchaetal lobes absent on most thoracic segments, becoming noticeable only in posterior thorax as small papillae ( Fig. 10E, H View FIGURE 10 ). No subpodal or stomach papillae. Abdominal notopodial lobes short, thin, foliaceous, shorter than branchiae ( Fig. 10E, F, I View FIGURE 10 ). Neuropodial lobes weakly bilobed in anterior segments, then outer lobes reduced and lobes becoming uniramous ( Fig. 10E, F, I View FIGURE 10 ). Subpodal notch and narrow flange present. Pygidium with two dorso-lateral anal cirri ( Fig. 10G View FIGURE 10 ). Chaetae crenulate capillaries in all parapodia, no uncini or forked chaetae present ( Fig. 10H, I View FIGURE 10 ).

Distribution. Australia, Queensland, South Australia.

Habitat. Mud.

Remarks. Leitoscoloplos latibranchus   differs from the other species of the genus by the presence of short and broad branchiae. The studied specimens are in agreement with the descriptions by Day (1977) and Mackie (1987). The present study expands the distribution of L. latibranchus   to Queensland.

AM

Australian Museum

Kingdom

Animalia

Phylum

Annelida

Class

Polychaeta

Family

Orbiniidae

Genus

Leitoscoloplos

Loc

Leitoscoloplos latibranchus Day, 1977

Zhadan, Anna 2020
2020
Loc

Leitoscoloplos latibranchus

Mackie, A. S. Y. 1987: 12
1987