Lamellitrochus pourtalesi (Clench & Aguayo, 1939)

(Fig. 8 D–F)

Synonymy see Quinn (1979). Complement:

Solariella (Solariella) pourtalesi: Quinn, 1979: 42, figs 63–64.

Lamellitrochus pourtalesi: Quinn, 1991: 83, figs 4–6; Rosenberg et al., 2009: 623; Barros, 2010: 67, figs 43–49.

Type material. Holotype: MCZ 135018 . Paratypes: MCZ 7579, Cuba, NW of Havana, 23°42‘N, 83°13‘W, 1572 m (24/ii/1878); MCZ 7585, Mexico, Yucatan Strait, 1170 m ; MCZ 135019, Cuba, 23°24’N, 80°44’W, 1060 m (W.C. Schroeder leg., 1938); MCZ 135020, Cuba, 23°10’N, 81°29’W, 420 m (W.C. Schroeder leg., 1938) .

Type locality Cuba, Atlantis sta. 2993, 23°24’N, 80°44’W, 1061 m .

Previously known distribution. Florida, USA, to Alagoas state, Brazil, 275–2350 m (Quinn, 1979; Barros, 2010).

New occurrence. Brazil, off Espírito Santo state, Abrolhos Slope.

Habitat. Quinn (1979) states that the species is more common in depths greater than 1000 m.

Material examined. Brazil: Espírito Santo: off São Mateus, Abrolhos Slope, 18°58’S, 37°49’W, MD55 sta. CB 76, 637 m, MNHN, 2 sh (27/v/1987); 19°01’S, 37°47’W, MD55 sta. CB79, 1500–1575 m, MNHN, 3 sh (28/ v/1987). Additional non-MD55 material: Mexico / Cuba: types.

Measurements. 5 whorls, H= 5.2 mm, D= 5.2 mm (largest specimen).

Remarks. The present material compares well to the types of L. pourtalesi . The species is readily diagnosable by its sculpture pattern (see Quinn 1979 for a full description). The present record greatly expands the species range, ca. 1,000 km to the south.