Yoldiella nana Sars M. 1865

• Main Authors: Negri, Mauro Pietro, Corselli, Cesare
• Format: Other/Unknown Material
• Language: unknown
• Published: 2016
• Subjects: Biodiversity; Taxonomy; Animalia; Mollusca; Bivalvia; Nuculanoida; Yoldiidae; Yoldiella; Yoldiella nana; Arctic; Greenland; Norway; Siberia
• Online Access: https://zenodo.org/record/6082139; https://doi.org/10.5281/zenodo.6082139

Yoldiella nana (Sars M., 1865) Fig. 3 a–c Yoldia nana Sars M., 1865 (p. 99). Yoldiella fraterna Verrill & Bush, 1898 (p. 867, pl. 80, fig. 5; pl. 82, fig. 8). Yoldiella nana (M. Sars, 1865) — Giribet & Peñas 1997 (p. 82, fig. 87); Giannuzzi-Savelli et al. 2001 (p. 56, figs. 52–54); La Perna 2003 (p. 26, pl. 3, figs. 4–5); Oliver et al. 2016 (online resource). Yoldiella nana (Sars M., 1865) — Repetto et al. 2005 (p. 285, top right fig). Diagnostic characters. Suboval outline; faintly pointed anterior side; hinge with two thin alignments of very small teeth; shiny outer surface. Prodissoconch: shell type ST-1A; P-1: length about 130 µm; ellipsoidal outline; low convex profile; surface appears smooth; transition to the nepioconch not well preserved. Remarks. Yoldiella fraterna Verrill & Bush, 1898, is currently regarded as a junior synonym of the present taxon (CLEMAM 2016). Occurrence. Box-corer sample BC72 (5 specimens); core BC05 (4). Maximum length: 2 mm. Distribution and habitat. Yoldiella nana is distributed from Canadian Arctic and Siberia to both sides of the northern Atlantic (also entering Norway fjords) and the western Mediterranean; it has been found from about 100 to 1200 m depth (Buhl-Mortensen & Høisaeter 1993; Pons-Moyà & Pons 1999; Oliver et al. 2016). Fossil record. Upper Pliocene of Greenland (Funder et al. 2001); Pleistocene of the Strait of Bering and the Mediterranean (Hopkins et al. 1972; La Perna 2003). 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 18, DOI:10.11646/zootaxa.4186.1.1, http://zenodo.org/record/165288