Yoldiella striolata (Brugnone, 1876)

Fig. 3 g–i

Yoldia striolata Brugnone, 1876 (p. 9, fig. 9) in Brugnone, 1873 -1876.

Leda striolata Brugnone—Jeffreys 1879 (p. 578).

Yoldiella striolata (Brugnone, 1876) — Nordsieck 1969 (p. 11).

Yoldiella seguenzae Bonfitto & Sabelli, 1995 (p. 21, figs. 1, 5–11).

Yoldiella seguenzae Bonfitto & Sabelli, 1995 — Salas 1996 (p. 44); Di Geronimo & La Perna 1997 (p. 410, pl. 7, figs. 5–6); Giannuzzi-Savelli et al. 2001 (p. 60, figs. 58–59); La Perna 2003 (p. 26, pl. 3, fig. 2).

Yoldia striolata Brugnone, 1876 — La Perna 2008 (p. 16, fig. 2).

Diagnostic characters. Solid, subtrigonal shell; rostrate posterior side; faint concavity on the postero-ventral margin; weak commarginal cordlets; obtuse commarginal ridges corresponding to growth discontinuities. Prodissoconch: shell type ST-1A; P-1: length about 160 µm; ellipsoidal outline; convex profile; surface with irregular wrinkles then weak radials; transition to the nepioconch weakly marked.

Remarks. Yoldiella seguenzae Bonfitto & Sabelli, 1995, is currently regarded as a junior synonym (CLEMAM 2016); see La Perna (2008) for the full nomenclatural history of this long-debated species.

Occurrence. Box-corer samples BC66 (1 specimen), BC72 (2). Maximum length: 3.5 mm.

Distribution and habitat. The species occurs in the NE Atlantic to the Azores and in the Mediterranean, dwelling in detritus from 500 to 2000 m but more typically in bathyal deeper horizons (Di Geronimo & La Perna 1997; Pons-Moyà & Pons 2000; La Perna 2003, 2008; Di Geronimo et al. 2005).

Fossil record. Pliocene of Italy (Tabanelli 2008); abundant in bathyal Pleistocene deposits of southern Italy (Di Geronimo & La Perna 1997; La Perna 2003; Di Geronimo et al. 2005). The type specimens are from the Pleistocene of Sicily .