Bathyal Mollusca from the cold-water coral biotope of Santa Maria di Leuca (Apulian margin, southern Italy) Author Negri, Mauro Pietro Author Corselli, Cesare text Zootaxa 2016 4186 1 1 97 journal article 10.11646/zootaxa.4186.1.1 5b97cddd-5284-4a6b-8693-898864fb4711 1175-5326 165288 029B675F-776C-4CD6-9992-FA05AEADFA7B Emarginula adriatica Costa O.G., 1830 Fig. 11 l–n Emarginula adriatica Costa O.G., 1830 (pp. 119, 122). Emarginula adriatica O.G. Costa , 1829 — Poppe & Goto 1991 (p. 67, pl. 2, fig. 17); Mastrototaro et al. 2010 (fig. 5 d). Emarginula adriatica Costa O.G., 1829— Cossignani et al. 1992 (fig. 020); Giannuzzi-Savelli et al. 1994 (p. 46, figs. 73–74); Repetto et al. 2005 (p. 74, bottom right fig.); Beck et al. 2006 (p. 40, bottom fig.); Crocetta & Spanu 2008 (p. 68, fig. 3M). Emarginula adriatica (Costa O.G., 1829)— Portalatina 2008 (p. 149, figs. 3A–F). Diagnostic characters . Elevated limpet-shaped shell; oval basal outline; recurved apex nearly reaching the posterior margin; anal slit moderately deep and adapically rounded; selenizone bordered by raised flanges; strong, nodulose to spiny radial ribs gradually increasing in number by intercalation; densely packed concentric riblets in the interspaces. Protoconch: almost planispiral, slightly turned to the right; 1.25 whorls; diameter about 170 µm; fine, irregularly shaped granules roughly arranged in spiral alignments; transition to the teleoconch marked by a low varix. Remarks . Although dated 1829, the work by Costa was published in 1830 according to Fasulo (2013) . Occurrence . Box-corer samples BC22 (2 specimens), BC66 (2), BC71 (12), BC72 (6); core BC67 (1). Maximum length: 11 mm . Distribution and habitat . The species is distributed in the Mediterranean and adjacent Atlantic waters ( Spain to the Canaries ), including seamounts ( Poppe & Goto 1991 ; Beck et al. 2006 ); it is often found associated with deep-water corals, e.g. Corallium rubrum off Sardinia coasts, possibly feeding on Porifera ( Beck et al. 2006 ; Crocetta & Spanu 2008 ). In the Santa Maria di Leuca CWC biotope, it was found on dead colonies of Madrepora oculata (Mastrototaro et al. 2010) , rarely occurring in solitary coral thanatofacies (Rosso et al. 2010). Fossil record. Pliocene of Sicily ( Monterosato 1872 ).