Turricostellaria jukyry Simone & Cunha 2012, n. sp.
Creators: name: Simone, Luiz Ricardo L.
name: Cunha, Carlo M.
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Neogastropoda
Costellariidae
Turricostellaria
Turricostellaria jukyry

description: Turricostellaria jukyry n. sp.   
(Fig. 5 G-K)  
TYPE MATERIAL. — Holotype: Brazil, Espírito Santo, off Itaúnas, continental slope of Abrolhos, 19°01’S, 37°47’W, 1500-1575 m depth, MNHN 25232 (Fig. 5 G-J) (MD 55, stn CB 79, Bouchet, Leal & Métivier coll., 28. V.1987). Paratype: off Regência, 19°40’S, 37°48’W, 790-940 m depth, MZSP 102858, 1 shell (Fig. 5K) (stn CB 77, 27. V.1987).  
TYPE LOCALITY. — Brazil, Espírito Santo, off Itaúnas, continental slope of Abrolhos, 19°01’S, 37°47’W, 1500- 1575 m depth (MD 55, stn CB 79).  
ETYMOLOGY. — The specific epithet is derived from the word “jukyry” in the native Parintintin language, meaning pale yellow (Betts 1981).  
DISTRIBUTION. — Off Espírito Santo, Abrolhos continental slope.  
 DIAGNOSIS. — Shell up to 13 mm, elongated (length c. 3 times width). Sculpture axial, sparse, low; shoulder low, away from upper suture. Protoconch pointed, of four whorls. Aperture c. ⅓ shell length.   
DESCRIPTION  
 Shell: size up to 12.3 mm, outline somewhat turriform; width c. 39% of length. Colour white, in tip or spire and anterior half of body whorl, pale yellow in middle, with no clear limit between pigmentations (Fig. 5G, H, K); surface shining. Protoconch pointed and tall, colour pale brown, comprising c. 8% of shell length and c. 12% of shell width; about four rounded, smooth, glossy whorls; suture shallow but clear (Fig. 5I); transition with teleoconch clear, arched. Spire c. 65% of shell length; spire angle c. 35°.Teleoconch up to 6.5 whorls; each whorl with wide shoulder located between upper and middle thirds of each whorl, in angle c. 35° in relation to longitudinal shell axis; remaining weakly convex, almost vertical. Sculpture strong axial threads, vertical, from suture to suture, with small node on tip of shoulder; c. 9 in penultimate whorl; interspaces of axial threads roundly concave, with c. 3 times threads width. Anterior region of body whorl lacking spiral threads (Fig. 5G, H, K), axial threads disappearing gradually producing smooth, uniform surface. Aperture elliptic, weakly oblique; comprising c. 43% of shell length and c. 35% of shell width. Outer lip simple, rounded, lacking folds. Inner lip weakly concave, with shallow callus, upper third c. 45° in relation to longitudinal shell axis; four oblique folds uniformly distributed in middle region, comprising c. 60% of inner lip area; upper folds larger, diminishing up to inconspicuous fourth fold flanking canal (Fig. 5H, J). Canal narrow, somewhat pointed, weakly projected forwards; with c. ½ of aperture width. No umbilicus.   
MEASUREMENTS (in mm). — Holotype: 12.3 × 5.0; paratype: 7.8 × 3.4.  
HABITAT. — Sandy-mud bottoms, 790-1575 m depth.
description: Published as part of Simone, Luiz Ricardo L. & Cunha, Carlo M., 2012, Taxonomic study on the molluscs collected in Marion-Dufresne expedition (MD 55) to SE Brazil: Xenophoridae, Cypraeoidea, mitriforms and Terebridae (Caenogastropoda), pp. 745-781 in Zoosystema 34 (4) on pages 759-760, DOI: 10.5252/z2012n4a6, http://zenodo.org/record/5166650