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 Mathilda cochlaeformis Brugnone, 1873 Fig. 17 a–c Trochus elegantissimus Costa , 1861 (p. 55, pl. 9, fig. 1). Mathilda cochlaeformis Brugnone, 1873 (p. 5, fig. 1). Mathilda granolirata Brugnone, 1873 (p. 6, fig. 2). Mathilda elegantissima , Costa—Tryon 1886 (p. 210, pl. 64, figs. 17–18; pl. 65, fig. 36). Mathilda elegantissima ( O.G. Costa , 1861 ) —Sabelli & Spada 1978[a] (p. 1, fig. 2). Mathilda cochleaeformis [ sic ] Brugnone, 1873 — Barash & Danin 1992 (p. 68). Mathilda cochlaeformis — Rocchini 2004 (p. 106, fig. 5). Mathilda cochlaeformis Brugnone, 1873 — Repetto et al. 2005 (p. 226, mid left fig.); Beck et al. 2006 (p. 84, mid figure); Peñas et al. 2006 (figs. 290–292); Crocetta & Spanu 2008 (fig. 3G); De Frias Martins et al. 2009 (p. 65, fig. 256). Diagnostic characters . Turreted shell; roundly angular teleoconch whorls; rounded aperture; three main spiral cords per whorl, the two abapical ones of nearly equal strenght; numerous thin axial riblets forming nodules at intersections with spiral cords; non-nodulose spirals on base. Protoconch: heterostrophic, transaxial, helicoidal; 2.75 whorls; diameter about 670 µm; surface smooth; transition to the teleoconch marked by a thin varix. Remarks . Mathilda elegantissima ( Costa O. G., 1861 ) and M. granolirata Brugnone, 1873 are currently regarded as synonyms of M. cochlaeformis ( fide CLEMAM 2016). Trochus elegantissimus Costa O. G., 1861 has no priority because it is a homonym predated by T. elegantissimus d’Orbigny, 1852 , a middle Miocene fossil taxon. Occurrence . Box-corer samples BC22 (1 specimen), BC66 (1), BC68 (1), BC71 (4), BC72 (1); core BC51 (2). Maximum height: 8.5 mm . Distribution and habitat . Mathilda cochlaeformis is distributed in the Mediterranean and the eastern Atlantic (from the Lusitanian province to Madeira , the Canaries and St. Helena ), on circalittoral to bathyal sand ( Poppe & Goto 1991 ; Barash & Danin 1992 ; Beck et al. 2006 ; De Frias Martins et al. 2009 ). It was also found associated with a Sardinian deep water population of Corallium rubrum ( Crocetta & Spanu 2008 ) . Fossil record. None recorded.