Abstract

Spirobranchus tetraceros (Schmarda, 1861) originally briefly described from New South Wales, Australia was later reported as a widely distributed species of Indo-Pacific origin. The species was assumed to be a highly successful invasive Lessepsian migrant to the Mediterranean via the Suez Canal. However, recently, such wide distributions have been questioned and S. tetraceros was treated as a complex of morphologically similar species. Moreover, genetic evidence proved that the species that invaded the Mediterranean originated neither in warm temperate Australia nor in the Red Sea. This study examines the taxonomic status of Spirobranchus tetraceros populations along the east coast of Australia. Given the absence of the holotype, we re-described Spirobranchus tetraceros from New South Wales, designated the neotype supported by DNA sequence data, and fixed Port Botany as the type locality. The phylogenetic analysis revealed the existence of a sympatric cryptic species with a mean genetic distance of 36% (described here as S. schmardai sp. nov.) and proved that the tropical coral-associated specimens from Queensland belong to at least two distinct species. We also suggest resurrecting the name S. multicornis Grube, 1862 for the Red Sea population of the Spirobranchus tetraceros complex. This study calls for a worldwide revision of the complex.

 
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Bibliographic Data

Short Form
Kupriyanova et al., 2022. Rec. Aust. Mus. 74(5): 201–214
Author
Elena Kupriyanova; Beth Flaxman; Ingo Burghardt
Year
2022
Title
A puzzle no more: the identity of Spirobranchus tetraceros (Schmarda, 1861) (Annelida, Serpulidae) is revealed
Serial Title
Records of the Australian Museum
Volume
74
Issue
5
Start Page
201
End Page
214
DOI
10.3853/j.2201-4349.74.2022.1820
Language
en
Date Published
30 November 2022
Cover Date
30 November 2022
ISSN
ISSN 0067-1975 (print); ISSN 2201-4349 (online)
CODEN
RAUMAJ
Publisher
The Australian Museum
Place Published
Sydney, Australia
Subjects
ANNELIDA; TAXONOMY; MARINE INVERTEBRATES
Digitized
30 November 2022
Available Online
30 November 2022
Reference Number
1820
EndNote
1820.ENW
Title Page
1820.pdf
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1820_complete.pdf
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