Liostomia

• Main Authors: Negri, Mauro Pietro, Corselli, Cesare
• Format: Text
• Language: unknown
• Published: Zenodo 2016
• Subjects: Biodiversity; Taxonomy; Animalia; Mollusca; Gastropoda; Pyramidellidae; Liostomia; Greenland; Norway; Petersen; Arktis*; North Atlantic
• Online Access: https://dx.doi.org/10.5281/zenodo.6082317; https://zenodo.org/record/6082317

Liostomia sp. Fig. 17 p–r Diagnostic characters . Conical-ovate shell; whorls weakly convex; drop-shaped aperture; small umbilical chink; outer surface with sinuous growth lines only. Protoconch: heterostrophic, coaxially immersed (intorted); about 1.25 visible whorls; diameter about 300 µm; surface smooth; transition to the teleoconch marked by a simple, thin lip. Remarks . The present specimens are attributed to the genus Liostomia G. O. Sars, 1878 on the basis of the “ type C” protoconch ( sensu Van Aartsen 1987) and the absence of a columellar tooth or fold. Liostomia sp. differs from the related L. clavula (Lovén, 1846) and L. afzelii Warén, 1991 [b], primarily in terms of shell shape (it is distinctly conical) and overall dimensions (it needs one more whorl to reach a comparable heigth). The northern Atlantic L. eburnea (Stimpson, 1851) is also similar, but it has slenderer shell and orthocline growth lines. Occurrence . Box-corer sample BC72 (2 specimens); cores BC04 (1), BC05 (1). Maximum height: 2.5 mm. Distribution and habitat . Liostomia species are parasites (host unknown; cf. Høisaeter 2014); they occur in both the northern Atlantic and the Mediterranean, from infralittoral to bathyal depths (Van Aartsen 1987; Van Aartsen et al. 1998; Schander et al. 2003; Petersen 2004; Høisaeter 2009). : Published as part of Negri, Mauro Pietro & Corselli, Cesare, 2016, Bathyal Mollusca from the cold-water coral biotope of Santa Maria di Leuca (Apulian margin, southern Italy), pp. 1-97 in Zootaxa 4186 (1) on page 77, DOI: 10.11646/zootaxa.4186.1.1, http://zenodo.org/record/165288 : {"references": ["Sars, G. O. (1878) Bidrag til kundskaben om Norges arktiske fauna. I. Mollusca regionis Arcticae Norvegiae. Oversigt over de i Norges arktiske region forekommende blOddyr. A. W. Brogger, Cristiania, XV + 466 pp. http: // dx. doi. org / 10.5962 / bhl. title. 42224", "Van Aartsen, J. J. (1987) European Pyramidellidae: III. Odostomia and Ondina. Bollettino Malacologico, 23 (1 - 4), 1 - 34.", "Loven, S. (1846) Nordens Hafs-Mollusker. Index Molluscorum litora Scandinaviae occidentalia habitantium. Ofversigt af Kongl. Vetenskaps-Akademiens Forhandlingar, 3 (5), 134 - 160, 3 (6), 182 - 204.", "Hoisaeter, T. (2014) The Pyramidellidae (Gastropoda, Heterobranchia) of Norway and adjacent waters. A taxonomic review. Fauna norvegica, 34, 7 - 78. http: // dx. doi. org / 10.5324 / fn. v 34 i 0.1672", "Van Aartsen, J. J., Gittenberger, E. & Goud, J. (1998) Pyramidellidae (Mollusca, Gastropoda, Heterobranchia) collected during the Dutch CANCAP and MAURITANIA expeditions in the south-eastern part of the North Atlantic Ocean (part 1). CANCAP-project Contributions, no. 119. Zoologische Verhandelingen Leiden, 321, 1 - 57.", "Schander, C., Halanych, K. M., Dahlgren, T. & Sundberg, P. (2003) Test of the monophyly of Odostomiinae and Turbonilliinae (Gastropoda, Heterobranchia, Pyramidellidae) based on 16 S mtDNA sequences. Zoologica Scripta, 32 (3), 243 - 254. http: // dx. doi. org / 10.1046 / j. 1463 - 6409.2003.00112. x", "Petersen, K. S. (2004) Late Quaternary environmental changes recorded in the Danish marine molluscan faunas. Geological Survey of Denmark and Greenland Bulletin, 3, 1 - 268.", "Hoisaeter, T. (2009) Distribution of marine, benthic, shell bearing gastropods along the Norwegian coast. Fauna norvegica, 28, 5 - 106."]}