Pleurotomella eurybrocha Dautzenberg & Fischer 1896

• Main Authors: Negri, Mauro Pietro, Corselli, Cesare
• Format: Text
• Language: unknown
• Published: Zenodo 2016
• Subjects: Biodiversity; Taxonomy; Animalia; Mollusca; Gastropoda; Neogastropoda; Raphitomidae; Pleurotomella; Pleurotomella eurybrocha; Eusebio; Piramide; Northeast Atlantic
• Online Access: https://dx.doi.org/10.5281/zenodo.6082291; https://zenodo.org/record/6082291

Pleurotomella eurybrocha (Dautzenberg & Fischer, 1896) Fig. 15 j–l Pleurotoma eurybrocha Dautzenberg & Fischer, 1896 (p. 427, pl. 15, fig. 14). Pleurotomella ( Gymnobela ) eurybrocha (Dautzenberg & H. Fischer) — Nordsieck 1968 (p. 184, pl. 31, fig. 95.65). Pleurotomella ( Gymnobela ) eurybrocha (Dautzenberg & Fischer, 1896) — Nordsieck 1977 (p. 68, pl. 26, fig. 137). Pleurotomella eurybrocha (Dautzenberg & Fischer, 1896) — Bouchet & Warén 1980 (p. 39, figs. 92, 224–225). Pleurotomella eurybrocha (Dautzenberg and Fischer, 1896) — Poppe & Goto 1991 (p. 173, pl. I, fig. 30). Pleurotomella eurybrocha (Dautzenberg & Fischer H., 1896) — Repetto et al. 2005 (p. 215, top right fig.). Diagnostic characters . Fusiform shell; oval aperture; moderately long and twisted siphonal canal; rather deep anal sinus; 11 collabral ribs per whorl crossed by spiral cordlets; short recurved spines at the intersections of ribs and cordlets; stronger spines bordering the subsutural shelf. Protoconch: conical; 3.5 whorls; diameter about 480 µm (protoconch I: 250 µm); height about 630 µm; first 1.5 whorls (protoconch I) with spirally connected T-shaped granules forming a square reticulated pattern; subsequent whorls (protoconch II) with sinuous, collabral, opisthocyrt axial riblets and non-collabral prosocline riblets; the latter riblets absent in the adapical third, where only collabral riblets are present; terminal spiral keel; transition to the teleoconch at sinusigera. Remarks . A single juvenile specimen was at hand. Occurrence . Core BC21 (1 specimen). Height: 2 mm. Distribution and habitat . Pleurotomella eurybrocha ranges from the northeastern Atlantic to the Azores and the Mediterranean, being a soft bottom dweller at bathyal depths, occasionally found at lower settings in the Mediterranean (Panetta 1971; Nordsieck 1977; Bouchet & Warén 1980; Poppe & Goto 1991). It was regarded as a characteristic element of the VP (bathyal mud) biocoenosis (Di Geronimo et al. 1982). Fossil record. Possibly Pleistocene of Sicily (Di Geronimo et al. 1982 as P. cf. eurybrocha ). : 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 70, DOI: 10.11646/zootaxa.4186.1.1, http://zenodo.org/record/165288 : {"references": ["Dautzenberg, P. & Fischer, H. (1896) Dragages effectues par l'Hirondelle et par la Princesse Alice 1888 - 1895. 1. Mollusques Gastropodes. Memoires de la Societe Zoologique de France, 9, 395 - 498.", "Nordsieck, F. (1968) Die europaischen Meeres-Gehauseschnecken (Prosobranchia) vom Eismeer bis Kapverden und Mittelmeer. Gustav Fischer Verlag, Stuttgart, VIII + 273 pp.", "Nordsieck, F. (1977) The Turridae of the European seas. La Piramide per La Conchiglia, Roma, 132 pp.", "Bouchet, P. & Waren, A. (1980) Revision of the Northeast Atlantic bathyal and abyssal Turridae (Mollusca, Gastropoda). The Journal of Molluscan Studies, supplement 8, 1 - 119. http: // dx. doi. org / 10.1093 / mollus / 46. supplement _ 8.1", "Poppe, G. T. & Goto, Y. (1991) European Seashells. Volume I. (Polyplacophora, Caudofoveata, Solenogastra, Gastropoda). Verlag Christa Hemmen, Wiesbaden, 352 pp.", "Repetto, G., Orlando, F. & Arduino, G. (2005) Conchiglie del Mediterraneo: 1770 specie illustrate con distribuzione e frequenza. Amici del Museo \" Federico Eusebio \", Alba, 392 pp.", "Panetta, P. (1971) Molluschi del Golfo di Taranto raccolti durante le crociere dell' \" Albatros \". Annali del Museo Civico di Storia Naturale \" Giacomo Doria \", 78, 149 - 180.", "Di Geronimo, I., Li Gioi, R. & Sciacca, V. (1982) La fauna Pleistocenica dell'abbeveratoio Conzo (Grammichele, Catania). Geologica Romana, 21, 577 - 601."]}