Talassia sandersoni (A.E. Verrill, 1884 )

Hoffman, Leon & Freiwald, André, 2022, A review of Atlantic deep-water species in the genus Talassia (Caenogastropoda, Vanikoridae), European Journal of Taxonomy 819, pp. 140-157 : 145

Talassia sandersoni (A.E. Verrill, 1884)

Figs 12–21

Cingula sandersoni – A.E. Verrill, 1884: 241.

Talassia sandersoni – Warén & Bouchet 1988: 93, fig. 44.

Material examined

OFF CAPE LOOKOUT, USA • 42 shells ( Figs 12–21 ); 34.2080° N, 75.8603° W; depth 430 m; 3 Jun. 2010; box core in bioclastic sand with coral rubble; TRACOS2010-32 ; SaM .

WESTERN SLOPE , FLORIDA, USA • 1 shell; 26.3370° N, 84.7598° W; depth 507 m; 27 Mar. 2012; grab in coral fragments; MSM20/4-GeoB16337-2 ; SaM • 1 shell; 26.4204° N, 84.7704° W; depth 500 m; 27 Mar. 2012; gravity core in sand; MSM20/4-GeoB16339 ; SaM .

Remarks

Talassia sandersoni was described from off Cape Hatteras ( Verrill 1884) and is found off the Atlantic coast of the USA and into the eastern Gulf of Mexico; in NMNH the syntypes (USNM 34447) are stored as well as two more lots from off Cape Hatteras and six lots from off Florida ( Rosenberg 2009; this study). The syntype (USNM 34447) was depicted by Warén & Bouchet (1988: fig. 48). The teleoconchs are covered by spirally dotted cordlets of irregular strength and weakly flexuous growth lines ( Figs 12– 21 ).

Figures

Figs 12–21. Talassia sandersoni (A.E. Verril, 1884), USA, off Cape Lookout, TRACOS2010-32. 12– 15. Subadult shell, H = 2.4 mm, W = 1.1 mm, Ha = 0.9 mm, apical angle = 32°. 12. Ventral view. 13. Protoconch, Wp = 0.38 mm. 14. Sculpture first whorl. 15. Sculpture body whorl. 16–18. Adult shell, H = 3.0 mm, W = 1.3 mm, Ha = 1.0 mm, apical angle = 28°. 16. Ventral view. 17. Side view. 18. Protoconch, Wp = 0.38 mm, arrow at lip. 19–22. Subadult shell, H = 2.2 mm, Ha = 0.9 mm. 19. Side view. 20–21. Protoconch, Wp = 0.38 mm. Scale bars = 0.2 mm.