| Turbonilla acutissima Monterosato, 1884 |
 |
| Mediterranean, including the Sea of Marmara. Ectoparasit in the circalittoral. Protoconch of type A; whorls rather flat, adorned with opisthocline axial ribs separated by narrow interspaces, and rapidly vanishing at the periphery of the last whorl. – 80-150m, Málaga, Andalucia, S. Spain. 5,2mm. |
 |
| The longitudinal sculpture appears from the very first whorls of the teleoconch, while they are smooth in acuta; the interspaces are also thinner. |
 |
| 3m deep, Stari Trogir Beach, west of Split, Dalmatia, S. Croatia. 4mm. Original picture provided by R. Stanić (HR). – (CC BY-NC-SA) – |
 |
| Possible acutissima from 45m deep, Cesenatico, Forlė-Cesena, Emilia Romagna, NE. Italy. 3,3mm. |
 |
| 5m deep, in grit, Náto beach, Salamina bay, Samalina island, Attikí, E. Greece. 4,7mm. |
 |
| 2-3m deep, in sediments among Posidonia meadows, Saint-Tropez, Var, Provence, S. France. 3,6-5,7mm. |
 |
| Above and below: 6m deep, in grit, Saronic Gulf, SW. Aegean. 5,2mm. |
 |
| Details of the microsculpture in this specimen. |
 |
| The protoconch. Scale: each interval = 0,1mm. |
| — back to Turbonillinae — |