Pleurotomella bureaui

• Main Authors: Figueira, Raquel Medeiros Andrade, Absalão, Ricardo Silva
• Format: Other/Unknown Material
• Language: unknown
• Published: 2012
• Subjects: Biodiversity; Taxonomy; Animalia; Mollusca; Gastropoda; Neogastropoda; Raphitomidae; Pleurotomella; Pleurotomella bureaui; Northeast Atlantic
• Online Access: https://zenodo.org/record/5632993; https://doi.org/10.5281/zenodo.5632993

Pleurotomella bureaui (Dautzenberg & Fischer, 1897 a) (Figs. 49–50) Pleurotoma bureaui Dautzenberg & Fischer, 1897 a: 37: Dautzenberg & Fischer (1897 b: 149, pl. 3, fig. 1); Dautzenberg (1927: 45, pl. 2, fig. 20); Pleurotomella bureaui (Dautzenberg & Fischer, 1897): Bouchet & Warén (1980: 36, figs. 88, 218). Type material: In Museé Océanographique de Monaco. Type locality: Azores, Hirondelle (1888), sta. 39 (39 º 26 ’ 30 ”N, 33 º 23 ’W), 1557 m; sta. 47 (39 º 18 ’ 05”N, 33 º 32 ’ 15 ”W), 1372 m; Princesse Alice (1896), sta. 74 (39 º 21 ’ 20 ”N, 33 º 26 ’W), 1360 m; sta. 90 (39 º 11 ’N, 32 º 44 ’ 30 ”W), 1600 m. Material examined: 15358 [3] OP I # 74; 19199 [1] OP I # 86; 19200 [1] OP II # 61; 19201 [1] OP II # 84. Description: Shell conical, white, up to 8.12 mm long. Protoconch with about 3.5 whorls. Protoconch 1 with rows of tiny crosses. Protoconch 2 with diagonal cancellation on the lower 2 / 3 of the whorls and axial riblets crossed by fine spiral threads on the upper third. Clear-cut proto-teleoconch boundary. Teleoconch with a subsutural concave area sculptured with numerous axial riblets and a spiral cordlet. Below this area, about 14 strong axial ribs (on the third whorl) crossed by two to three spiral cords, with the formation of acute nodules in the intersections. Shell surface granulose. Suture shallow. Base elongated, ornamented with about 12 spiral cords. Inner lip reflected over parietal wall. Outer lip thin. Anterior siphonal canal relatively long and narrow. Aperture elliptical. Geographic distribution: Northeast Atlantic: Azores (Dautzenberg & Fischer, 1897 a; Dautzenberg & Fischer, 1897 b; Dautzenberg, 1927); Azores and Morocco (Bouchet & Warén, 1980). Southwest Atlantic: Campos Basin, Rio de Janeiro (this paper). Bathymetry: 750–1650 m (this paper). Discussion: Our material shows a very good fit with the type illustrated by Dautzenberg & Fischer (1897 b: pl. 3, fig. 1) and the specimen illustrated by Bouchet & Warén (1980: 37, fig. 88). However, our ...