Emarginula multistriata Jeffreys 1882
| Main Authors: | Negri, Mauro Pietro, Corselli, Cesare |
|---|---|
| Format: | info publication-taxonomictreatment Journal |
| Terbitan: |
, 2016
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/6082236 |
Daftar Isi:
- Emarginula multistriata Jeffreys, 1882 Fig. 11 o–q Emarginula multistriata Jeffreys, 1882 [b] (p. 30). Emarginula multistriata Jeffreys—Jeffreys 1883 [a] (p. 680, pl. 50, fig. 12); Hidalgo 1917 (p. 303); Nordsieck 1968 (p. 11, pl. 1, fig. 03.07). Emarginula multistriata Jeffreys, 1882 — Ghisotti & Melone 1969 (p. 22, fig. 03.07); Bogi & Giusti 1994 (pp. 41–44, figs. 1– 4); Repetto et al. 2005 (p. 75, bottom left fig.). Diagnostic characters. Elevated and limpet-shaped shell; oval basal outline; recurved apex extending beyond the posterior margin; anal slit moderately deep and adapically rounded; selenizone bordered by raised flanges; strong, nodulose radial ribs gradually increasing in number by intercalation; concentric ribs forming a squarish reticulated patern with the radials. Protoconch: almost planispiral, slightly turned to the right; 1.25 whorls; diameter about 180 μm; surface with flocculent sculpture; transition to the teleoconch marked by a cord-like varix. Remarks. The present species differs from E. adriatica in having a more recurved apex, lunulae not emerging from the selenizone, and radial and commarginal ribs of equal strenght. Occurrence. Box-corer samples BC11 (1 specimen), BC66 (1), BC70 (1), BC71 (3), BC72 (1). Maximum length: 9 mm. Distribution and habitat. Emarginula multistriata is distributed in the Mediterranean and nearby Atlantic waters, from the Gulf of Gascogne to the Canaries and Morocco; it is a circalittoral to bathyal species, often associated with deep water white corals (Ghisotti & Melone 1969; Poppe & Goto 1991; Bogi & Giusti 1994). Fossil record. Lower Pleistocene of Sicily, in need for confirmation (Di Geronimo et al. 2005); the species was formerly considered extinct in the Mediterranean since the Pleistocene, but living specimens were recently found in the Thyrrenian Sea (Bogi & Giusti 1994).
- 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 53, DOI: 10.11646/zootaxa.4186.1.1, http://zenodo.org/record/165288