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NameHalt, M. N.; Kupriyanova, E. K.; Cooper, S. J. B.; Rouse, G. W. (2009). Naming species with no morphological indicators: species status of Galeolaria caespitosa (Annelida : Serpulidae) inferred from nuclear and mitochondrial gene sequences and morphology. Invertebrate Systematics. 23, 205-222.
SourceID132138
DOI10.1071/IS09003 [view]
AuthorsHalt, M. N.; Kupriyanova, E. K.; Cooper, S. J. B.; Rouse, G. W.
Year2009
TitleNaming species with no morphological indicators: species status of Galeolaria caespitosa (Annelida : Serpulidae) inferred from nuclear and mitochondrial gene sequences and morphology
JournalInvertebrate Systematics
Suffix23, 205-222
Type Publication
NoteWorld Polychaeta Database (WPolyDb)
AbstractGaleolaria caespitosa Lamarck, 1818 is an endemic, gregarious serpulid annelid, ubiquitous along the intertidal zone of southern Australia, occurring from Queensland to Western Australia. We sampled specimens across this range and utilised morphological features and sequences of mitochondrial (cytochrome-b) and nuclear (ITS2) markers to assess the taxonomic status of this morphospecies. No taxonomically significant morphological differences were observed across the range of G. caespitosa. However, the molecular data revealed the existence of the following two well supported clades that were also geographically concordant for the two markers: an eastern clade, consisting of New South Wales and southern Queensland samples, and a south-western group that encompassed samples from the rest of its range. The minimum pairwise distance between members of the two groups was more than 24% for cytochrome-b, with a maximum of 1% within-group variation. In addition, analysis of molecular variation showed a high proportion (97%) of the total variation distributed among the two groups, indicative of long-term isolation of the two clades. These results suggest that G. caespitosa comprises at least two cryptic species. Here, we discuss the merits of naming new Galeolaria species, given there were no consistent morphological differences detectable and the absence of details on the type locality for G. caespitosa. We conclude that a new species of Galeolaria is warranted and describe it here as G. gemineoa.
Geographical
term
Australia
Taxonomic
terms
Annelida
Polychaeta
Taxa
(6)
Checked: verified by a taxonomic editorGaleolaria caespitosa Lamarck, 1818 (redescription)
Checked: verified by a taxonomic editorGaleolaria decubens [auct. lapsus] accepted as Checked: verified by a taxonomic editorGaleolaria caespitosa Lamarck, 1818 (basis of record)
Checked: verified by a taxonomic editorGaleolaria gemineoa Halt, Kupriyanova, Cooper & Rouse, 2009 (original description)
Checked: verified by a taxonomic editorGaleolaria hystrix Mörch, 1863 (additional source)
Checked: verified by a taxonomic editorGaleolaria tetracerus (Schmarda, 1861) accepted as Checked: verified by a taxonomic editorSpirobranchus tetraceros (Schmarda, 1861) (additional source)
Checked: verified by a taxonomic editorVermilia crenata (basis of record)
Specimen
(1)
Neotype SAMA E3694, locality Adelaide, identified as Galeolaria caespitosa Lamarck, 1818
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Date   action   by
2013-01-12 18:30:12Z  created  db_admin
2015-11-18 20:45:40Z  changed  Read, Geoffrey
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