AquaNISInformation system on aquatic non-indigenous and cryptogenic species |
Species | Auriculinella bidentata | |
Authority | (Montagu, 1808) | |
Family | Ellobiidae | |
Order | Pulmonata | |
Class | Gastropoda | |
Phylum | Mollusca | |
Synonym (?) | Leucophytia bidentata | |
Sub-species level (?) | Not entered |
Native origin (?) | Not entered Comments: Eastern Atlantic Ocean |
Life form / Life stage (?) |
References (not structured): Marcus, E. D. B. R., Marcus, E. 1965. On two Ellobiidae from southern Brazil. Boletim da Faculdade de Filosofia, Ciências e Letras, Universidade de São Paulo. Zoologia, 25(25), pp. 425-465. |
Sociability / Life stage (?) |
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Reproductive frequency (?) | Iteroparous |
Reproductive type (?) | Sexual References: Smith, I.F. (2024). Leucophytia bidentata (Montagu, 1808): Identification and Biology. Comments: L. bidentata is a protandrous hermaphrodite. Reproduction between June and September, 12-30 eggs (diameter 0.6-0.7 mm) are laid in agglomerations fixed to solid surfaces, juveniles hatch after 14-16 days, maturity is reached at the end of the second year. |
Developmental trait (?) | Direct development References: Smith, I.F. (2024). Leucophytia bidentata (Montagu, 1808): Identification and Biology. Marcus, E. D. B. R., Marcus, E. 1965. On two Ellobiidae from southern Brazil. Boletim da Faculdade de Filosofia, Ciências e Letras, Universidade de São Paulo. Zoologia, 25(25), pp. 425-465. Comments: Irregular egg masses, about 4 mm diameter containing 18 to 24ova, are placed in crevices or under stones by groups of ovipositing snails. Each white-yolked egg is in a blunt-pointed ovoid capsule. The cluster of capsules is held together by a viscid, mucoid secretion which also attaches the mass to the rock surface. The veliger stage is passed within the egg. Small crawling snails emerge at hatching. |
Characteristic feeding method / Life stage (?) |
References (not structured): Smith, I.F. (2024). Leucophytia bidentata (Montagu, 1808): Identification and Biology. Comments: When feeding, the muzzle is spread out on the substrate and the radula is extended to gather organic detritus with the reddish jaw as a backstop. It has been observed to congregate in captivity on a decaying isopod, possibly feeding. |
Mobility / Life stage (?) |
References (not structured): Smith, I.F. (2024). Leucophytia bidentata (Montagu, 1808): Identification and Biology. Comments: The fusiform (spindle shaped) shell of L. bidentata is well adapted for movement through the confines of crevices and embedded stones. When moving on smooth surfaces, thefoot is cushioned on a layer of watery mucus and the shell has a thicker layer between it andthe substrate |
Salinity tolerance range (?) | Venice system: 1. Limnetic [<0.5psu] 2. β-Oligohaline [0.5-3psu] 3. α-Oligohaline [3-5psu] 4. β-Mesohaline [5-10psu] 5. α-Mesohaline [10-18psu] References: Den Hartog, C. 1962. De verspreiding van het slakje Leucophytia bidentata in het Deltagebied van Rijn, Maas en Schelde. Basteria, 26(1/2), pp. 17-24. |
Habitat modifying ability potential (?) | Unknown Comments: Not available. |
Toxicity / Life stage (?) | Not relevant |
Bioaccumulation association (?) | Unknown Comments: Not available. |
Known human health impact? | Known Comments: Harmless. |
Known economic impact? | Not known Comments: Not available. |
Known measurable environmental impact? | Not known Comments: Not available. |
Included in the Target Species list? | No References: HELCOM, 2009. Alien Species and Ballast Water [PDF] Available at: https://archive.iwlearn.net/helcom.fi/stc/files/shipping/Table_2_Alienspecies_%20lists_2009.pdf [Accessed 1 July 2024]. |
Association with vessel vectors (?) | Unknown Comments: Not available. |
Molecular information | Available NCBI (https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?term=Leucophytia+bidentata) |
Created by | Aleksas Narščius, 2016-01-07 |
Last update by | Sandra Gečaitė, 2024-08-01 |