Pneumopulmonata
Pneumopulmonata is a clade of heterobranch pulmonate gastropods, defined based on results of phylogenomic studies[1][2] and named by Krug et al. (2020). The clade unites all of Panpulmonata except for Sacoglossa. Synapomorphy of the group is the presence of a pneumostome.
The following groups are included:
Siphonarioidea
Siphonarioidea include a single family of limpet-like intertidal gastropods. They have a large mantle cavity containing a secondary gill on large part of its roof and opening by a pneumostome on the right side of the body. During the high tide the cavity fills with water, at low tide it is used a lung. The pneumostome lacks a sphincter. Anus is located at the pneumostome. There is no operculum, tentacles are absent. Radula has many small and rather uniform teeth in each row. The genital system has a common spermoviduct ending in a copulatory organ and a single genital opening. Sperm is transferred in a spermatophore. Bursa copulatrix (gametolytic gland) is present. Development is through a free-swimming veliger larva.[3][4][5]
Acochlidiacea
References
- ^ Krug, Patrick J.; Caplins, Serena A.; Algoso, Krisha; Thomas, Kanique; Valdés, Ángel A.; Wade, Rachael; Wong, Nur Leena W. S.; Eernisse, Douglas J.; Kocot, Kevin M. (2022-04-13). "Phylogenomic resolution of the root of Panpulmonata, a hyperdiverse radiation of gastropods: new insight into the evolution of air breathing". Proceedings of the Royal Society B: Biological Sciences. 289 (1972). doi:10.1098/rspb.2021.1855. ISSN 0962-8452. PMC 8984808. PMID 35382597.
{{cite journal}}: CS1 maint: PMC format (link) - ^ Teasdale, Luisa Cinzia (2017). Phylogenomics of the pulmonate land snails. [Dissertation submitted in total fulfilment of the requirements of the degree of doctor of Philosophy]. Melbourne: School of BioSciences, The University of Melbourne.
{{cite book}}: CS1 maint: date and year (link) - ^ Heller, Joseph (2015), "Marine Ancestors of most Land Snails: Pulmonates", Sea Snails, Cham: Springer International Publishing, pp. 257–264, doi:10.1007/978-3-319-15452-7_10, ISBN 978-3-319-15451-0, retrieved 2024-10-24
- ^ Simone, Luiz Ricardo L.; Seabra, Maria Inês G. L. (2017-09-01). "Shell and body structure of the plesiomorphic pulmonate marine limpet Siphonaria pectinata (Linnaeus, 1758) from Portugal (Gastropoda: Heterobranchia: Siphonariidae)". Folia Malacologica. 25 (3): 147–164. doi:10.12657/folmal.025.012.
- ^ Hubendick, B. (1978). "Systematics and comparative morphology of the Basommatophora". In Fretter1 Peake2, Vera1 J.2 (ed.). Pulmonates. Volume 2A. Systematics, Evolution and Ecology. London, New York, San Francisco: Academic Press. pp. 1–47. ISBN 0-12-267502-9.
{{cite book}}: CS1 maint: numeric names: editors list (link)