A new species of giant Eunice (Eunicidae, Polychaeta, Annelida) from the east coast of Australia

被引:1
|
作者
Zanol, Joana [1 ]
Hutchings, Pat [2 ,3 ]
机构
[1] Univ Fed Rio de Janeiro, Museu Nacl, Dept Invertebrados, Ave Bartolomeu Gusmao 875, BR-20941160 Rio De Janeiro, Brazil
[2] Australian Museum, Australian Museum Res Inst, 1 William St, Darlinghurst, NSW 2010, Australia
[3] Macquarie Univ, Dept Biol Sci, N Ryde, NSW 2109, Australia
关键词
Bobbit worm; Eunice aphroditois; Port Stephens; taxonomy; MARPHYSA EUNICIDAE; QUATREFAGES; KINBERG; GENUS;
D O I
10.3897/zookeys.1118.86448
中图分类号
Q95 [动物学];
学科分类号
071002 ;
摘要
A new giant species is described from New South Wales, Australia. Eunice dharastii sp. nov. differs from described Australian species and is most similar to E. aphroditois (Pallas, 1788), E. flavopicta Izuka, 1912, and E. kinbergi Ehlers, 1868. The unique combination of features that characterizes the new species is irregular articulated prostomial appendages; antennae reaching back beyond chaetiger 4; branchiae starting at chaetiger 10, initially button-shaped and distinctly longer than notopodial cirri where best developed; dorsal fleshy knobs on anterior chaetal lobes; notopodial cirri pendulous, abrupt tapering from inflated bases; bidentate compound falcigerous chaetae with both teeth directed laterally, distal tooth much shorter than proximal tooth in median and posterior chaetigers; and dark bidentate subacicular hooks starting at chaetiger 58, tapering to a small head with both teeth directed distally, and proximal tooth much larger than minute and spur-like distal tooth. This new species lives in sandy sediments in coastal waters 1???8 m deep. It is highly mobile and not easy to collect, which may explain why it was not described before.
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页码:97 / 109
页数:13
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