Syllidae (Annelida: Phyllodocida) from the deep Mediterranean Sea, with the description of three new species

Langeneck, Joachim; Musco, Luigi; Busoni, Giulio; Conese, Ilaria; Aliani, Stefano; Castelli, Alberto

doi:10.11646/zootaxa.4369.2.3

Cited by 7 publications

(4 citation statements)

References 49 publications

(71 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Some Tyrrhenian specimens correspond to the description by San Martín ( 2003), with eyes extremely reduced or absent, while other specimens are a better match for topotypic material (San Martín, 2005). Intraspecific variation in presence and size of eyes has already been identified in other Erinaceusyllis species (Langeneck et al, 2018b). Unlike E. belizensis, this species has been reported as a NIS by Zenetos et al (2017), Servello et al (2019) andEC (2019); however, in this case too the direct development and the absence of dispersal phases suggest that this might represent an undescribed native species.…”

Section: Prionospio Sexoculatasupporting

confidence: 80%

“…The family with the highest number of taxa in this category was Spionidae, followed by Terebellidae, Syllidae, Capitellidae and Nereididae. All these families are characterised by a notoriously underestimated pseudocryptic diversity, with new species frequently described even from well-known areas (Tomioka et al, 2016;Lavesque et al, 2017;Langeneck et al, 2018b;Lavesque et al, 2019), and molecular data highlighting complex diversity patterns, often with several sympatric cryptic or pseudocryptic lineages (Wäge et al, 2017;Nygren et al, 2018). The list of questionable species points therefore at gaps in the knowledge of Mediterranean polychaete taxonomy, and a number of doubts can be resolved by a thorough re-examination of the material upon which old records were based.…”

Section: Confirmed and Unconfirmed Polychaete Nis In Italian Watersmentioning

confidence: 99%

See 1 more Smart Citation

Non-indigenous polychaetes along the coasts of Italy: a critical review

et al. 2020

Self Cite

View full text Add to dashboard Cite

Non-indigenous species (NIS) represent one of the most relevant threats to biodiversity, ecosystem functioning and human activities, and their occurrence and spread have been the subject of numerous works and revisions. However, the information available is rather confused for several taxa, including polychaetes, which are characterised by having a high number of cryptogenic and questionable species. This work aims at providing a revised checklist of alien polychaetes occurring along the coasts of Italy, based on the examination of newly collected and deposited material and on the critical analysis of published and gray literature, and whenever possible on the re-examination of historical material. Of the 86 polychaete species reported as NIS in Italian waters, 25 are confirmed as alien species, while 3 are cryptogenic, and 40 should be considered questionable. Finally, 18 species were excluded from non-indigenous species checklists, either because they are native, or because they represent misidentifications of other species. The high number of cryptogenic and questionable species points at the need of molecular studies and taxonomic revisions for the majority of polychaete taxa reported as NIS, in order to clarify their taxonomy, origin, introduction pathways and spreading patterns.

show abstract

Section: Prionospio Sexoculatasupporting

confidence: 80%

Section: Confirmed and Unconfirmed Polychaete Nis In Italian Watersmentioning

confidence: 99%

Non-indigenous polychaetes along the coasts of Italy: a critical review

et al. 2020

Self Cite

View full text Add to dashboard Cite

show abstract

“…Remarks. The Australian specimens agree with the Mediterranean specimens described as Syllis alternata Moore, 1908by San Martín (2003 and later considered by Langeneck et al (2018) as Syllis profunda Cognetti, 1955, which was originally described as a subspecies of Syllis variegata Grube, 1860. It is a species of large size (some Mediterranean specimens reach up to 40 mm long), with marked alternation of dorsal cirri length, being long, slender, whip-shaped.…”

Section: Syllis Pharobroomensis (Hartmannsupporting

confidence: 81%

The genus Syllis Savigny in Lamarck, 1881 (Annelida: Syllidae: Syllinae) from Australia (Part 3): new species and redescription of previously described species

Martín

Lucas

Hutchings

2023

Zootaxa

View full text Add to dashboard Cite

Syllis Savigny in Lamarck, 1818, the type genus of Syllidae, is the largest and most diverse within the family. This genus presents many taxonomic, biogeographic, and phylogenetic problems due mainly to the lack of molecular data and morphological synapomorphies for many of the species, but also due to poor or inadequate descriptions. In order to improve the knowledge of the genus, we have undertaken a morphological revision of Australian species, based on type material and material collected over years by the Australian Museum. This is the third paper dealing with this family. Eighteen species are herein described, of which five are new and twelve are redescriptions of already known species, with four new combinations: Syllis imajimai, n. sp.; S. narranuk, n. sp.; S. noolinga, n. sp.; S. similisunzima, n. sp.; S. thylacine, n. sp.; S. busseltonensis (Hartmann-Schröder, 1982) n. comb.; S. patriciae (Hartmann-Schröder, 1981) n. comb.; S. pharobroomensis (Hartmann-Schröder, 1979) n. comb., S. pharynxcircunfusata (Hartmann-Schröder, 1979) n. comb, S. armillaris (O. F. Müller, 1771); S. augeneri Haswell, 1920; S. benelihauae (Campoy & Alquézar, 1982); S. hyalina Grube, 1863; S. cf. nigrescens Grube, 1878; S. profunda Cognetti, 1955; S. truncata Haswell, 1920; and S. variegata Grube, 1860.

show abstract

“…The Syllidae (Annelida) are widespread in almost every benthic marine habitat, from the deep-sea (Böggemann, 2009; Barroso et al ., 2017; Langeneck et al ., 2018) to the surface (Çinar, 2003; Serrano et al ., 2006; Martins et al ., 2013), where they can represent the majority of the macrofaunal individuals (Musco, 2012). This taxon shows remarkable diversity being characterized by the largest number of species (~700) among polychaete families (Aguado et al ., 2012).…”

Section: Introductionmentioning

confidence: 99%

Atypical reproduction in a syllid worm: the stolon ofSyllis rosea(Annelida, Syllidae) takes care of its offspring

et al. 2020

Self Cite

View full text Add to dashboard Cite

The family Syllidae, aside from representing the most species-rich family in Annelida, is characterized by a number of sexual and asexual reproductive strategies. With the exception of a few viviparous species, the subfamily Syllinae is characterized by schizogamous reproduction with pelagic larval stages and without parental care. Laboratory rearing of ripe specimens of Syllis rosea showed a different reproductive strategy, hitherto unknown in this subfamily. While male stolons rapidly degenerated after fertilization, female ones released large eggs in a gelatinous cluster attached to the middle-posterior chaetigers. The gel mass progressively compacted as a cocoon wrapped by the stolon body; 7 days after the deposition the larvae hatched out from the cocoon at the metatrochophore stage and the female stolon died after a few days. After hatching the larvae remained associated to the stolon, and young specimens of S. rosea survived up to the 3-chaetiger stage. Until now cocoon brooding by the stolon has only been reported for some Autolytinae. The production of gelatinous egg masses and parental care are known in basally branching clades within Syllidae, suggesting that this reproduction mode might retain some ancestral features. The scarce knowledge about reproductive cycles in Syllinae does not allow clarification whether this strategy is unique for S. rosea, or it occurs in other congeneric species. Further research is needed to understand possible relationships between sexual reproduction and phylogeny, stolon morphology and its adaptation to parental care, and ultimately between reproductive strategies and ecology.

show abstract

Syllidae (Annelida: Phyllodocida) from the deep Mediterranean Sea, with the description of three new species

Cited by 7 publications

References 49 publications

Non-indigenous polychaetes along the coasts of Italy: a critical review

Non-indigenous polychaetes along the coasts of Italy: a critical review

The genus Syllis Savigny in Lamarck, 1881 (Annelida: Syllidae: Syllinae) from Australia (Part 3): new species and redescription of previously described species

Atypical reproduction in a syllid worm: the stolon ofSyllis rosea(Annelida, Syllidae) takes care of its offspring

Contact Info

Product

Resources

About