Checklist of the Carnivorous Snail Superfamily Streptaxoidea Gray, 1860 (Gastropoda: Eupulmonata) from Laos with Description of a New Species
Keywords:
biodiversity, carnivorous snail, checklist, endemic, limestonesAbstract
The superfamily Streptaxoidea is widespread in the tropical region and represents a major portion of the land snail fauna of most Southeast Asian countries. Laos is located on one of the biodiversity hotspots in this region, with high mountain ranges and limestone karsts. Herein, an up-to-date checklist is provided of all known Streptaxoidea species recorded in Laos until the year 2022. This annotated checklist comprises 23 species (9 Diapheridae and 14 Streptaxidae) with brief taxonomic notes/remarks when necessary. Of these, Haploptychius somsaki Vanhdibay and Inkhavilay, sp. nov., is described based on shell morphological characters of specimens collected from the limestone karsts in central Laos. The species has an aperture oblique-ovate; peristome discontinuous, expanded, reflected, and thickened with enlarged columella fold adjacent to columellar axis. A systematic revision and more field research are required to fully reveal the species diversity of the superfamily Streptaxoidea in Laos.
References
Albers, J.C. 1850. Die Heliceen, nach natürlicher Verwandtschaft systematisch geordnet. Enslin, Berlin, 262 pp.
Bavay, A. and Dautzenberg, P. 1909 Molluscorum terrestrum tonki-norum diagnoses. Journal de Conchyliologie, 56[1908]: 229–251.
Blanford, W.T. and Godwin-Austen, H.H. 1908. The Fauna of British India, including Ceylon and Burma. Mollusca. Testa-cellidae and Zonitidae. Taylor and Francis, London, 311 pp.
Bruggen, A.C. van. 1967. An introduction to the pulmonate family Streptaxidae. Journal of Conchology, 26: 181–188.
Dance, S.P. 1972. Bruggennea, n. gen., proposed for recent streptaxids from Borneo (Gastropoda: Streptaxidae). Archiv für Molluskenkunde, 102: 131–132.
Dautzenberg PH, Fischer H (1905) Liste des mollusques récoltés par M. le Frégate Blaise au Tonkin, et description ďespèces nouvelles. Journal de Conchyliologie, 53: 85–234.
Do, D.S. 2021. Two new species of the genus Stemmatopsis J. Mabille, 1887 (Gastropoda: Stylommatophora: Streptaxidae) from Vietnam and Laos. Ruthenica, 31: 21–25.
Do, D.S. and Do, V.N. 2015. The terrestrial snail family Streptax-idae J. Gray, 1860 (Gastropoda: Pulmonata) from Son La, Vietnam, with description of two new species. Ruthenica, 25: 37–43.
Gray, J.E. 1860. On the arrangement of the land pulmoniferous Mollusca into families. Annals and Magazine of Natural History (Series 3), 6: 267–269.
Inkhavilay, K., Siriboon, T., Sutcharit, C., Rowson, B. and Panha, S. 2016a. The first revision of the carnivorous land snail family Streptaxidae in Laos, with description of three new species (Pulmonata, Stylommatophora, Streptaxidae). ZooKeys, 589: 23–53. doi.org/10.3897/zookeys.589.7933.
Inkhavilay, K., Sutcharit, C., Tongkerd, P. and Panha, S. 2016b. New species of micro snails from Laos (Pulmonata: Vertigi-nidae and Diapheridae). Journal of Conchology, 42: 213–232.
Inkhavilay, K., Sutcharit, C., Bantaowong, U., Chanabun, R., Siriwut, W., Srisonchai, R., Pholyotha, A., Jirapatrasilp, P. and Panha, S. 2019. Annotated checklist of the terrestrial molluscs from Laos (Mollusca, Gastropoda). ZooKeys, 834: 1–166. doi. org/10.3897/zookeys.589.7933
Jochum, A., Bochud, E., Favre, A., Ferrand, M. and Wackenheim, Q. 2020. A new species of Laoennea microsnail (Stylommato-phora, Diapheridae) from a cave in Laos. Subterranean Biology, 36: 1–9. doi.org/10.3897/subtbiol.36.58977
Kobelt, W. 1904. Die systematische Stellung der chinesischen Ennea. Nachrichtsblatt der Deutschen Malakozoologischen Gesellschaft, 36: 26–30.
Kobelt, W. 1905, 1906 [1905–1906]. Die Raublungenschnecken (Agnatha). Zweite Abtheilung: Streptaxidae und Daudebar-diidae. Systematisches Conchylien-Cabinet von Martini und Chemnitz 1(12b) (2): 1–96, pls 42–59 [1905]; 97–211, pls 60–71 [1906].
Laidlaw, F.F. 1950. Description of a new genus of land-mollusc, belonging to the family Streptaxidae, from the Bau district of Sarawak. Sarawak Museum Journal, 5: 370–372.
Maassen, W.J.M. 2008. Remarks on a small collection of terrestrial molluscs from north-west Laos, with descriptions of three new species (Mollusca: Pulmonata: Streptaxidae, Vertiginidae). Basteria, 72: 233–240.
Mabille, J. 1887. Molluscorum tonkinorum diagnoses. Meulan, Seine-Oise, 18 pp.
Man, Sian. N., Siriboon, T., Lin, A., Sutcharit, C. and Panha, S. 2022. Revision of the carnivorous land snail family Streptax-idae (Stylommatophora, Achatinina) in Myanmar, with descrip-tion of four new species. ZooKeys, 1110: 39–102. doi.org/10. 3897/zookeys.1110.85399
Möllendorff, O.F. von. 1898. Die Binnenmollusken Annams. Nach-richtsblatt der Deutschen Malakozoologischen Gesellschaft, 30: 65–85.
Morlet, L. 1887. Liste des coquilles recueillies, au Tonkin par M. Jourdy, chef ďescadron ďartillerie, et description ďespèces nou-velles. Journal de Conchyliologie, 34[1886]: 257–295.
Páll-Gergely, B. and Grego, J. 2020. Kontschania tetragyra n. gen. & sp. from Laos (Gastropoda: Cyclophoroidea: Diplommati-nidae). Journal of Conchology, 43: 461–465.
Páll-Gergely, B., Grego, J., Vermeulen, J.J., Reischütz, A., Hun-yadi, A. and Jochum, A. 2019. New Tonkinospira Jochum, Slapnik & Páll-Gergely, 2014 species from Laos and Vietnam (Gastropoda: Pulmonata: Hypselostomatidae). Raffles Bulletin of Zoology, 67: 517–535
Páll-Gergely, B., Hunyadi, A. and Auffenberg, K. 2020a Taxono-mic vandalism in malacology: Comments on molluscan taxa recently described by N. N. Thach and colleagues (2014–2019). Folia Malacologica, 28: 35–76.
Páll-Gergely, B., Reischütz, A., Maassen, W.J.M., Grego, J. and Hunyadi, A. 2020b. New taxa of Diapheridae Panha & Naggs in Sutcharit et al. 2010 from Laos and Thailand (Gastropoda: Eupulmonata: Stylommatophora). Raffles Bulletin of Zoology, 68: 1–13.
Páll-Gergely, B., Hunyadi, A., Grego, J., Sajan, S.K. and Chen, Z.-Y. 2020c. A review of the Diapheridae (Gastropoda: Eupulmo-nata: Streptaxoidea), with special emphasis on India and Myan-mar. Raffles Bulletin of Zoology, 68: 682–718.
Páll-Gergely, B., Hunyadi, A., Vermeulen, J.J., Grego, J., Sutcharit, C., Reischütz, A., Dumrongrojwattana, P., Botta-Dukát, Z., Örstan, A., Fekete, J. and Jochum, A. 2023. Five times over: 42 new Angustopila species highlight Southeast Asia’s rich biodi-versity (Gastropoda, Stylommatophora, Hypselostomatidae). ZooKeys, 1147: 1–177. https://doi.org/10.3897/-zookeys.1147. 93824
Páll-Gergely, B., Jochum, A., Vermeulen, J.J., Anker, K., Hunyadi, A., Örstan, A., Szabó, Á., Dányi, L. and Schilthuizen, M. 2022. The world’s tiniest land snails from Laos and Vietnam (Gastro-poda, Pulmonata, Hypselostomatidae). Contributions to Zoo-logy, 91: 62–78. doi.org/10.1163/18759866-bja10025
Pfeiffer, L. 1853. Description of fifty-four new species of helicea, from the collection of Hugh Cuming, Esq. Proceedings of the Zoological Society of London, 19[1851]: 252–263.
Pfeiffer, L. 1863. Description of thirty-six new land shells, from the collection of H. Cuming, Esq. Proceedings of the Zoological Society of London, 30[1862]: 268–278.
Richardson, L. 1988. Streptaxacea: Catalog of species, Part I, Streptaxidae. Tryonia, 16: 1–326.
Rowson, B., Seddon, M.B. and Tattersfield, P. 2009. A new species of Gulella (Pulmonata: Streptaxidae) from montane forest in the Ndoto Mountains, Kenya. Zoologische Mededelingen Lei-den, 83: 651–659.
Rowson, B., Tattersfield, P. and Symondson, W.O.C. 2010. Phylo-geny and biogeography of tropical carnivorous land-snails (Pul-monata: Streptaxoidea) with particular reference to East Africa and the Indian Ocean. Zoologica Scripta, 40: 85–98. doi:10. 1111/j.1463-6409.2010. 00456.x
Schileyko, A.A. 2000. Treatise on recent terrestrial pulmonate molluscs: Rhytididae; Chlamydephoridae; Systrophiidae; Haplo-trematidae; Streptaxidae; Spiraxidae; Oleacinidae; Testacel-lidae. Ruthenica Supplement 2, Part 6: 731–880.
Schileyko, A.A. 2011. Check-list of land pulmonate molluscs of Vietnam (Gastropoda: Stylommatophora). Ruthenica, 21: 1–68.
Siriboon, T., Naggs F., Wade, C.M., Jeratthitikul, E., Tongkerd, P., Jirapatrasilp, P., Panha, S. and Sutcharit, C. 2020. Phylogenetic relationships of the carnivorous terrestrial snail family Streptax-idae (Stylommatophora: Achatinina) in Thailand and surround-ing areas of Southeast Asia. Systematics and Biodiversity, 18: 720–738. doi: 10.1080/14772000.2020.1783384
Siriboon, T., Sutcharit, C., Naggs F. and Panha, S. 2013. Three new species of the carnivorous snail genus Perrottetia Kobelt, 1905 from Thailand (Pulmonata, Streptaxidae). ZooKeys, 287: 41–57. doi: 10.3897/zookeys.287.4572
Siriboon, T., Sutcharit, C., Naggs F., Rowson, B. and Panha, S. 2014a. Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmo-nata, Streptaxidae). ZooKeys, 401: 45–107. doi:10.3897/zoo keys.401.7075
Siriboon, T., Sutcharit, C., Naggs, F., Rowson, B. and Panha, S. 2014b. Revision of the carnivorous snail genus Indoartemon Forcart, 1946 and a new genus Carinartemis from Thailand (Pulmonata: Streptaxidae). Raffles Bulletin of Zoology, 62: 161–174.
Sutcharit, C., Naggs F., Wade, C.M., Fontanilla, I. and Panha, S. 2010. The new family Diapheridae, a new species of Diaphera Albers from Thailand, and the position of the Diapheridae within a molecular phylogeny of the Streptaxoidea (Pulmonata: Stylommatophora). Zoological Journal of the Linnean Society, 160: 1–16.
Thach, N.N. 2016. Vietnamese New Mollusks with 59 New Species. 48HrBooks Company, Ohio, USA, 205 pp.
Thach, N.N. 2018. New shells of South Asia Seashells-Freshwater & Land Snails, 3 new genera, 132 new species & subspecies. 48HrBooks Company, Ohio, USA, 173 pp.
Thach, N.N. 2020. New shells of South Asia, Volume 2, Seashells, Freshwater, Land Snails with one new genu and 140 new species and subspecies, reply to comments made in error. 48Hr Books Company, Ohio, USA, 189 pp.
Thach, N.N. 2021. New Shells of South Asia and Taiwan, China, Tanzania, Seashells, Freshwater, Land snails, with 116 new species & subspecies and rejected synonyms, accepted species. 48Hr Books, Akron, Ohio, USA, 201 pp.
Tongkerd, P., Tumpeesuwan, S., Inkhavilay, K., Prasankok, P., Jeratthitikul, E., Panha, S. and Sutcharit, C. 2023. Systematic revision of the snorkel snail genus Rhiostoma Benson, 1860 (Gastropoda, Caenogastropoda, Cyclophoridae) with descrip-tions of new species. ZooKeys, 1142: 1–144. doi.org/10.3897/ zookeys.1142.90097
Verdcourt, B. 2000. The penial armature of three species of East African Streptaxidae (Gastropoda: Stylommatophora). Folia Malacologica, 8: 215–221. doi.org/10.12657/folmal.008.015
Downloads
Published
How to Cite
License
Chulalongkorn University. All rights reserved. No part of this publication may be reproduced, translated, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without prior written permission of the publisher
