Review of Orbiniidae (Annelida, Sedentaria) from Australia Author Zhadan, Anna text Zootaxa 2020 2020-10-14 4860 4 451 502 journal article 8231 10.11646/zootaxa.4860.4.1 1f5ee6c2-2635-44a8-8469-49319b7a8c62 1175-5326 4414137 876F1085-5296-4340-A951-41420C011917 Naineris australis Hartman, 1957 Figure 15 Naineris grubei australis Hartman, 1957: 303–304 , pl. 39, figs 1–4; Day 1977: 238 ; Hutchings & Rainer 1979: 761 ; Hartmann- Schröder & Hartmann 1980: 66; Zhadan et al . 2015: 793-797 , figs 9–11, 12D. Naineris grubei : Day 1977: 237–238 . Naineris australis : Blake 2017: 103 . FIGURE 15. Naineris australis . A–C: AM W.23421, stereomicroscope, methylene blue staining; D, E: AM W.22470, compound microscope. A. General view; B. anterior end, dorso-lateral view; C. thoracic neuropodia, anterior-lateral view; D. Thoracic parapodium; E. Posterior parapodium. a, acicula; br, branchia; cc, crenulated capillaries; fc, forked chaeta; ne, neuropodium; no, notopodium; su, subuluncini; u, uncini. Material examined. Queensland : Lizard Island , August 2013 : Casuarina Beach , 14°40’46”S , 145°26’49”E , intertidal, sand, coll. P.A. Hutchings , P. Rodgers , J. Zanol Silva , N. Budaeva , AM W.44763 ; Off Casuarina Beach , in front of Lizard Island Research Station , 14°40’46”S , 145°26’49”E , depth 1 m , snorkelling, fine sand, coll. K. Mei- ssner, T . Alvestad , AM W.44038 . New South Wales : Pittwater , Careel Bay , 33°37’S , 151°19’E , 08.04.1996 , coll. P.A. Hutchings , intertidal, Zostera , AM W. 23421, 1 specimen ; Rozelle Bay , Port Jackson , Sydney , 33°52’ 24”S , 151°10’30”E , March 1986 , depth 6 m , fine mud, coll. M. Lincoln-Smith , AM W.22470, 4 specimens ; Cararma Inlet , Jervis Bay , 35°00’S , 150°46’30”E , December , 1988, intertidal, coll. L. Howitt , AM W.22627, 1 specimen . Type locality. South Australia . Description. Large worms, thoracic width 1.6–5.7 mm. Body long, thorax flattened, abdomen cylindrical ( Fig. 15A ). Prostomium short and wide, rectangular ( Fig. 15B ). Thoracic chaetigers numbering 30–38 ( Fig. 15A ). Branchiae from chaetiger 6, narrow triangular, in abdomen becoming long with tapering tips, longer than notopodia ( Fig. 15B, E ). Thoracic notopodial postchaetal lobes from first chaetiger, digitate to triangular; in abdomen becoming long narrow foliaceous with tapering tips ( Fig. 15B, D, E ). Thoracic neuropodial postchaetal lobes as ridges with one papilla, situated in middle part of ridge on anterior chaetigers; from chaetiger 7 lobe shifting to uppermost part of ridge ( Fig. 15 A–C). Abdominal neuropodia simple narrow triangular; subpodal flange not developed ( Fig. 15E ). No subpodal, stomach, or flange papillae; no interramal cirrus. Notopodial chaetae crenulate capillaries, in abdominal notopodia also forked chaetae present; thoracic neuropodia bearing subuluncini with thick base and sharply tapering tips and thin curved serrated uncini in superior position, and 2–3 rows of capillaries; abdominal neuropodia with capillaries only ( Fig. 15 C–E). Both rami supported by two straight aciculae in abdomen ( Fig. 15E ). Distribution . Australia , Queensland , New South Wales , Victoria , South Australia , Western Australia . Habitat. Intertidal and upper subtidal, sandy mud, mud, seagrass. Remarks. Naineris grubei australis was described from Adelaide, South Australia, and later found in Victoria, New South Wales, and Western Australia ( Hutchings & Rainer 1979 ; Hutchings & Murray 1984 ; Hartmann- Schröder 1980). Recently, the species was redescribed and illustrated based on specimens from Lizard Island, Queensland ( Zhadan et al ., 2015 ). Blake (2017) re-examined specimens of N. grubei and raised N. grubei australis to a full species because of the difference in neurochaetal structure. The distribution of N. grubei is restricted to Ecuador , Peru , and Chile , whereas N. australis is restricted to Australian waters.