Conventus Pirogov & Starobogatov 1974, stat. nov.
Creators
- Bespalaya, Yulia V.1
- Vinarski, Maxim V.2
- Aksenova, Olga V.3
- Babushkin, Evgeniy S.4
- Gofarov, Mikhail Yu.3
- Kondakov, Alexander V.3
- Konopleva, Ekaterina S.3
- Kropotin, Alexander V.3
- Mabrouki, Youness5
- Ovchankova, Nadezda B.6
- Palatov, Dmitry M.7
- Sokolova, Svetlana E.3
- Shevchenko, Alexander R.3
- Travina, Oksana V.3
- Taybi, Abdelkhaleq F.8
- Soboleva, Alena A.3
- Zubrii, Natalia A.3
- Bolotov, Ivan N.3
- 1. N. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of the Russian Academy of Sciences, Nikolsky Avenue 20, 163020 Arkhangelsk, Russian Federation & Laboratory of Macroecology & Biogeography of Invertebrates, Saint Petersburg State University, Universitetskaya Emb. 7 - 9, 199034 Saint Petersburg, Russian Federation
- 2. Laboratory of Macroecology & Biogeography of Invertebrates, Saint Petersburg State University, Universitetskaya Emb. 7 - 9, 199034 Saint Petersburg, Russian Federation
- 3. N. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of the Russian Academy of Sciences, Nikolsky Avenue 20, 163020 Arkhangelsk, Russian Federation
- 4. Laboratory of Macroecology & Biogeography of Invertebrates, Saint Petersburg State University, Universitetskaya Emb. 7 - 9, 199034 Saint Petersburg, Russian Federation & Surgut State University, Lenina Ave., 1, 628403 Surgut, Russian Federation
- 5. Biotechnology, Conservation and Valorisation of Natural Resources Laboratory, Faculty of Sciences Dhar El Mehraz, Sidi Mohamed Ben Abdellah University, Fez. B. P. 1796, 30003 Fès-Atlas, Morocco
- 6. Laboratory of Macroecology & Biogeography of Invertebrates, Saint Petersburg State University, Universitetskaya Emb. 7 - 9, 199034 Saint Petersburg, Russian Federation & Zoological Institute, Russian Academy of Sciences, Universitetskaya Emb. 1, 199034 Saint Petersburg, Russian Federation
- 7. Laboratory of Macroecology & Biogeography of Invertebrates, Saint Petersburg State University, Universitetskaya Emb. 7 - 9, 199034 Saint Petersburg, Russian Federation & A. N. Severtsov Institute of Ecology and Evolution of the Russian Academy of Sciences, Leninsky Prt., 33, 119071 Moscow, Russian Federation
- 8. Mohammed Premier University, Multidisciplinary Faculty of Nador, Applied Biology and Biotechnology Research Team, B. P 300, 62700 Selouane, Morocco
Description
Genus Conventus Pirogov & Starobogatov, 1974 stat. nov.
Type species: Pisidium conventus Clessin, 1877.
Diagnosis: The shell is small (up to 3.3 mm in length), oval, or rounded. The beaks are rounded and slightly prominent, and somewhat offset to the posterior edge of the valves (Figs 5C and 6C). Pores are rare. Only one (exhalant) siphon is present (Fig. 7C). The outer demibranch is completely reduced.
Reproductive biology: The members of the genus are characterized as synchronous brooders (embryos are developing within a distinct brood sac).
Distribution: The range of the genus covers Europe, Southeastern Asia, and North America, including high-latitude (Arctic) regions (Fig. 3F).
Remarks: In our phylogenetic trees, the species Odhneripisidium ellisi, Odhneripisidium insigne Gabb, 1868, O. conventus, and Odhneripisidium sp.1 form a well-maintained clade that was previously designated by Saito et al. (2022) as Neopisidium Odhner, 1921 (Fig. 2; Supporting Information, Fig. S4). The type species of the genus Neopisidium is Pisidium torquatum Stelfox, 1918 (Odhner 1921). However this species considered a synonym of P. moitessierianum (Korniushin and Glaubrecht 2002, Graf and Cummings 2023, MolluscaBase 2023). According to our phylogenetic trees (Fig. 2; Supporting Information, Fig. S4) and previous studies, O. moitessierianum grouped with O. tenuilineatum (Schultheiss et al. 2008, Saito et al. 2022) or with O. stewarti, belonging to the genus Odhneripisidium (Clewing et al. 2013). In this case, the name Neopisidium cannot be applied to the clade containing O. ellisi, O. insigne, O. conventus, and Odhneripisidium sp. 1, and, thus, we classified this genus as Conventus Pirogov & Starobogatov, 1974.
Notes
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Linked records
Additional details
Identifiers
Biodiversity
- Family
- Sphaeriidae
- Genus
- Conventus
- Kingdom
- Animalia
- Order
- Sphaeriida
- Phylum
- Mollusca
- Scientific name authorship
- Pirogov & Starobogatov
- Taxonomic status
- stat. nov.
- Taxon rank
- genus
- Taxonomic concept label
- Conventus (Clessin, 1877) sec. Bespalaya, Vinarski, Aksenova, Babushkin, Gofarov, Kondakov, Konopleva, Kropotin, Mabrouki, Ovchankova, Palatov, Sokolova, Shevchenko, Travina, Taybi, Soboleva, Zubrii & Bolotov, 2024
References
- Pirogov VV, Starobogatov YI. Small bivalves of the family Pisidiidae from the Bol'shoy Karabulak bayou in the Volga delta. Zoologicheskiy Zhurnal 1974; 53: 325 - 37.
- Saito T, Fujimoto K, Uchida S et al. Uncovering overlooked diversity using molecular phylogenetic approach: a case of Japanese sphaeriid clams (Sphaeriidae: Bivalvia). Molecular Phylogenetics and Evolution 2022; 175: 107563. https: // doi. org / 10.1016 / j. ympev. 2022.10750
- Odhner NHJ. On some species of Pisidium in the Swedish State Museum. Journal of Conchology 1921; 16: 218 - 23.
- Korniushin AV, Glaubrecht M. Phylogenetic analysis based on the morphology of viviparous freshwater clams of the family Sphaeriidae (Mollusca, Bivalvia, Veneroida). Zoologica Scripta 2002; 31: 415 - 59.
- Graf DL, Cummings KS. The Freshwater Mussels (Unionoida) of the World (and Other Less Consequential Bivalves), updated 14 Febrary 2023, 2023. MUSSEL Project Web Site. Available at: http: // www. musselproject. net /
- Schultheiss R, Albrecht C, Bossneck U et al. The neglected side of speciation in ancient lakes: phylogeography of an inconspicuous mollusc taxon in lakes Ohrid and Prespa. Hydrobiologia 2008; 615: 141 - 56. https: // doi. org / 10.1007 / s 10750 - 008 - 9553 - 3
- Clewing C, Bossneck U, von Oheimb PV et al. Molecular phylogeny and biogeography of a high mountain bivalve fauna: the Sphaeriidae of the Tibetan Plateau. Malacologia 2013; 56: 231 - 52.