Opaliopsis opalina ( Dall, 1927 )

Ortega, José Rafael & Gofas, Serge, 2019, The unknown bathyal of the Canaries: new species and new records of deep-sea Mollusca, Zoosystema 41 (26), pp. 513-551 : 528

Opaliopsis opalina ( Dall, 1927)

( Fig. 12F, G )

MATERIAL EXAMINED. — 1 sh., DW130.

REMARKS

This species was described under three different names from the same area off Fernandina (Florida); Clench & Turner (1952: 337-338), acting as First Revisers, selected opalina as the valid name and figured all the type specimens. Our specimen (5.9 mm) is similar in size to the holotype of Epitonium dromia Dall, 1927 (5.8 mm) but smaller that the holotype of E. opalinum (10.6 mm). This is the type species of Nystiella Clench & Turner, 1952 , which Bouchet & Warén (1986) treated as a junior synonym of Opaliopsis Thiele, 1928 . This species was also reported from Brazil by Andrade et al. 2011. New to Spanish waters and to the eastern Atlantic.

Figures

FIG. 12. — A-E, Epitonium polacia (Dall, 1889): A, shell from DW130 (4.9 mm height); new to the eastern Atlantic; B, protoconch of the same shell; C, scanning electron micrograph of the same protoconch; D, E, shell from DW130 (4.3 mm height); F, G, Opaliopsis opalina (Dall, 1927): F, shell from DW130 (5.9 mm height); new to the eastern Atlantic; G, protoconch of the same shell; H-K, Epitonium nanum (Jeffreys, 1884), shell from DW130 (2.9 mm height); new to Spanish waters; I, Narrimania concinna (Sykes, 1925), shell from DW130 (4.6 mm height); new to Spanish waters; J, protoconch of the same specimen; K, scanning electron micrograph of the protoconch of a juvenile, live taken specimen, same locality; the arrow points to the protoconch-teleoconch limit. Scale bars: 100 µm.