Aurospio sp. nov. 1

Gunton, Laetitia M., Kupriyanova, Elena K., Alvestad, Tom, Avery, Lynda, Blake, James A., Biriukova, Olga, Boeggemann, Markus, Borisova, Polina, Budaeva, Nataliya, Burghardt, Ingo, Capa, Maria, Georgieva, Magdalena N., Glasby, Christopher J., Hsueh, Pan-Wen, Hutchings, Pat, Jimi, Naoto, Kongsrud, Jon A., Langeneck, Joachim, Meissner, Karin, Murray, Anna, Nikolic, Mark, Paxton, Hannelore, Ramos, Dino, Schulze, Anja, Sobczyk, Robert, Watson, Charlotte, Wiklund, Helena, Wilson, Robin S., Zhadan, Anna & Zhang, Jinghuai, 2021, Annelids of the eastern Australian abyss collected by the 2017 RV ' Investigator' voyage, ZooKeys 1020, pp. 1-198 : 1

Aurospio sp. nov. 1 Fig. 31B

Diagnosis.

Prostomium round anteriorly, extending into a short caruncle to the end of chaetiger 1, without appendages. Eyes absent. Peristomium moderately developed and separated from first segment. First chaetiger dorsally with yellowish pigment lateral to the caruncle. Branchiae present on chaetigers (2, potential branchial scars) 3 and 4, club-shaped to cirriform, smaller than notopodial lamellae and not fused to it. Dorsal crests and interparapodial pouches absent. Parapodial lamellae on chaetiger 1 small, tapered in notopodia, rounded in neuropodia; from chaetigers 2-6 notopodial lamellae large, subtriangular and foliaceous, smaller and rounded thereafter; neuropodial lamellae at same chaetigers wide and foliaceous, thereafter low, wider than long, rounded. Long capillaries present in anterior chaetigers; multidentate long-shafted hooded hooks from chaetigers 15 in neuropodia, apical teeth in a row above main fang. Notopodial hooks not present. Sabre chaetae first present together with neuropodial hooks from chaetiger 15.

Remarks.

The specimen is an anterior fragment in rather poor condition. It might belong to an undescribed species of Aurospio with neuropodial hooks and sabre chaetae from chaetiger 15.

Records.

1 specimen. Suppl. material 1: op. 79 (AM).

Figures

Figure 31. Spionidae A Aurospio cf. dibranchiata: anterior end, dorsal view (AM W. 52242) B Aurospio sp. nov. 1, anterior end, dorsal view (AM W. 52240) C Prionospio cf. amarsupiata, anterior end, dorsal view (AM W. 52221) D Dipolydora notialis, heavy spine with crest of bristles on convex side from chaetiger 5 (AM W. 52245) E Dipolydora notialis, bidentate hooded hooks with smooth, curved shafts without constriction from posterior chaetiger (AM W. 52245) F Laonice cf. blakei: anterior end, dorsal-oblique view (AM W. 52226) G Spiophanes anoculata, posteriorly incomplete specimen in dorsal-oblique view, metameric dorsal ciliated organ bordered by pigment of dark orange or ochre colour (AM W. 52222). Scale bars: 100 µm (A, B, C); 1 µm (D, E); 200 µm (F); 500 µm (G).