Rare, deep-water and similar: revision of Sibogasyrinx (Conoidea: Cochlespiridae)

  • Yuri I. Kantor A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Leninski prospect 33, 119071 Moscow, Russian Federation
  • Nicolas Puillandre Institut Systématique Evolution Biodiversité (ISYEB), Muséum national d’histoire naturelle, CNRS, Sorbonne Université, EPHE, Université des Antilles, 57 rue Cuvier, 75005 Paris, France
Keywords: Sibogasyrinx pyramidalis species complex, deep-water Conoidea, cox-1, integrative taxonomy, new species


The genus Sibogasyrinx has to date included only four species of rare deep-water Conoidea, each known from few specimens. In shell characters it strongly resembles three distantly-related genera, two of which, Comitas and Leucosyrinx, belong to a different family, the Pseudomelatomidae. A molecular phylogenetic analysis of a large amount of material of Conoidea has revealed the existence of much additional undescribed diversity within Sibogasyrinx from the central Indo-Pacific and temperate Northern Pacific. Based on partial sequences of the mitochondrial cox1 gene and morphological characters of 54 specimens, 10 species hypotheses are proposed, of which six are described as new species: S. subula sp. nov., S. lolae sp. nov., S. maximei sp. nov., S. clausura sp. nov., S. pagodiformis sp. nov. and S. elbakyanae Kantor, Puillandre & Bouchet sp. nov. One of the previously described species was absent in our material. Most of the new species are very similar and are compared to Leucosyrinx spp. Species of Sibogasyrinx are unique among Conoidea on account of the high intrageneric variability in radular morphology. Three distinct radula types are found within Sibogasyrinx, two of which are confined to highly supported subclades.


Abdelkrim J., Aznar-Cormano L., Fedosov A., Kantor Y.I., Lozouet P., Phuong M., Zaharias P. & Puillandre N. 2018. Exon-capture based phylogeny and diversification of the venomous gastropods (Neogastropoda, Conoidea). Molecular Biology and Evolution 35 (10): 2355–2374. https://doi.org/10.1093/molbev/msy144

Ardovini R. 2021. Descrizione di Sibogasyrinx filosus n.sp. (Neogastropoda, Conoidea, Cochlespiridae) da Papua Nuova Guinea, Oceano Pacifico Meridionale. Malacologia Mostra Mondiale 111: 5–6.

Bouchet P. & Kantor Y.I. 2004. New Caledonia: the major centre of biodiversity for volutomitrid molluscs (Mollusca: Neogastropoda: Volutomitridae). Systematics and Biodiversity 1 (4): 467–502. https://doi.org/10.1017/S1477200003001282

Bouchet P., Kantor Y.I., Sysoev A. & Puillandre N. 2011. New operational classification of the Conoidea (Gastropoda). Journal of Molluscan Studies 77: 273–308. https://doi.org/10.1093/mollus/eyr017

Folmer O., Black M., Hoeh W., Lutz R. & Vrijenhoek R. 1994. DNA primers for amplification of mitochondrial cytochrome c oxidase subunit I from diverse metazoan invertebrates. Molecular Marine Biology and Biotechnology 3: 294–299.

Galindo L.A., Puillandre N., Strong E.E. & Bouchet P. 2014. Using microwaves to prepare gastropods for DNA barcoding. Molecular Ecology Resources 14: 700–705. https://doi.org/10.1111/1755-0998.12231

Kantor Y.I. & Puillandre N. 2012. Evolution of the radular apparatus in Conoidea (Gastropoda: Neogastropoda) as inferred from a molecular phylogeny. Malacologia 55: 55–90.

Kantor Y.I., Fedosov A.E. & Puillandre N. 2018. New and unusual deep-water Conoidea revised with shell, radula and DNA characters. Ruthenica, Russian Malacological Journal 28: 47–82.

Medinskaya A.I. 1999. Foregut anatomy of the Cochlespirinae (Gastropoda, Conoidea, Turridae). Zoosystema 21: 171–198.

Minh B.Q., Nguyen M.A.T. & von Haeseler A. 2013. Ultrafast approximation for phylogenetic bootstrap. Molecular Biology and Evolution 30 (5): 1188–1195. https://doi.org/10.1093/molbev/mst024

Powell A.W.B. 1969. The family Turridae in the Indo-Pacific. Part 2. The subfamily Turriculinae. Indo- Pacific Mollusca 2 (10): 215–416. Available from https://www.biodiversitylibrary.org/page/49824050 [accessed 24 Aug. 2021].

Puillandre N., Kantor Y.I, Sysoev A., Couloux A., Meyer C., Rawlings T., Todd J.A. & Bouchet P. 2011. The dragon tamed? A molecular phylogeny of the Conoidea (Mollusca, Gastropoda). Journal of Molluscan Studies 77 (3): 259–272. https://doi.org/10.1093/mollus/eyr015

Puillandre N., Lambert A., Brouillet S. & Achaz G. 2012a. ABGD, Automatic Barcode Gap Discovery for primary species delimitation. Molecular Ecology 21 (8): 1864–1877. https://doi.org/10.1111/j.1365-294X.2011.05239.x

Puillandre N., Modica M.V., Zhan Y., Sirovich L., Boisselier M.-C., Cruaud C., Holford M. & Samadi S. 2012b. Large-scale species delimitation method for hyperdiverse groups. Molecular Ecology 21 (11): 2671–2691. https://doi.org/10.1111/j.1365-294X.2012.05559.x

Puillandre N., Fedosov A.E., Zaharias P., Aznar-Cormano L. & Kantor Y.I. 2017. A quest for the lost types of Lophiotoma (Gastropoda: Conoidea: Turridae): integrative taxonomy in a nomenclatural mess. Zoological Journal of the Linnean Society 181 (2): 243–271. https://doi.org/10.1093/zoolinnean/zlx012

Puillandre N., Brouillet S. & Achaz G. 2021. ASAP: assemble species by automatic partitioning. Molecular Ecology Resources 21 (2): 609–620. https://doi.org/10.1111/1755-0998.13281

Rambaut A. & Drummond A.J. 2014. Tracer ver. 1.6. Available from http://beast.bio.ed.ac.uk/Tracer [accessed 24 Aug. 2021].

Ronquist F., Teslenko M., Van Der Mark P., Ayres D.A., Darling A., Höhna S., Larget B., Liu L., Suchard M.A. & Huelsenbeck J.P. 2012. MrBayes 3.2: efficient Bayesian phylogenetic inference and model choice across a large model space. Systematic Biology 61 (3): 539–542. https://doi.org/10.1093/sysbio/sys029

Schepman M.M. 1913. The Prosobranchia of the Siboga Expedition. Part 5. Toxoglossa. Siboga-Expeditie 49 (5): 365–452. Available from https://www.biodiversitylibrary.org/page/34450646 [accessed 24 Aug. 2021].

Shuto T. 1970. Taxonomical notes on the turrids of the Siboga-Collection originally described by M.M. Schepman, 1913 (part 1). Venus 28: 161–178.

Sysoev A.V. 1996. Deep-sea conoidean gastropods collected by the John Murray Expedition, 1933–34. Bulletin of the Natural History Museum of London, Zoology 62 (1): 1–30. Available from https://www.biodiversitylibrary.org/page/41008506 [accessed 7 Sep. 2021].

Trifinopoulos J., Nguyen L.T., von Haeseler A. & Minh B.Q. 2016. W-IQ-TREE: a fast online phylogenetic tool for maximum likelihood analysis. Nucleic Acids Research 44 (W1): W232–235. https://doi.org/10.1093/nar/gkw256

How to Cite
Kantor, Y. I., & Puillandre, N. (2021). Rare, deep-water and similar: revision of Sibogasyrinx (Conoidea: Cochlespiridae). European Journal of Taxonomy, 773(1), 19-60. https://doi.org/10.5852/ejt.2021.773.1509
Research article