Natica jukyriuva, Simone, 2014

Simone, Luiz Ricardo L., 2014, Taxonomic study on the molluscs collected during the Marion-Dufresne expedition (MD 55) off SE Brazil: the Naticidae (Mollusca: Caenogastropoda), Zoosystema 36 (3), pp. 563-593 : 582

publication ID

https://doi.org/ 10.5252/z2014n3a2

persistent identifier

https://treatment.plazi.org/id/7C5BCE66-FFD9-195D-81EB-D21F93CAFBB9

treatment provided by

Felipe

scientific name

Natica jukyriuva
status

sp. nov.

Natica jukyriuva View in CoL n. sp.

( Fig. 9 View FIG A-E)

HOLOTYPE. — MNHN 27153 About MNHN .

PARATYPES. — MNHN 27154, 2 shells, MZSP 105144, 2 shells from type locality. Brazil, Espírito Santo: off Itaúnas, MD 55 sta. DC73, 18°59’S, 37°48’W, 607-620 m depth, 27. V.1987 (coll. Bouchet, Leal & Métivier), MNHN 27155, 2 shells.

TYPE LOCALITY. — Brazil. Espírito Santo: off Itaúnas, MD 55 sta. DC75, 18°59’S, 37°50’W, 295 m depth, 27. V.1987 (coll. Bouchet, Leal & Métivier).

DIAGNOSIS. — Shell c. 9 mm, c. 92% taller than wide. Umbilicus open, upper region covered by thick callus, inner middle fold present. Sculpture lacking, surface glossy, white with sparse small yellow spots. Protoconch blunt, of 1 whorl. Spire angle c. 110°.

DESCRIPTION

Shell ( Fig. 9 View FIG A-E)

Diameter of c. 9 mm; height c. 92% of width; general form globose. Color white, with small, sparse yellow spots splayed sequentially in subsutural and middle level of whorls; upper spots performing irregular radial band; middle spots as acute chevrons ( Fig. 9C View FIG ). Protoconch blunt, of 1 rounded whorl ( Fig. 9D, E View FIG ); surface smooth, glossy; diameter c. 0.9 mm, occupying c. 10% of upper shell surface. Teleoconch of c. 2.5 whorls; suture shallow, marked by subsutural low elevation ( Fig. 9 View FIG A-C); spire angle c. 110°. Sculpture absent except for growth lines and axial weak undulations; undulations stronger in umbilicus. Suture shallow, marked by narrow subsutural elevation ( Fig. 9B, C View FIG ). Aperture semicircular, wide, occupying c. 70% of shell height and c. 45% of shell width; outer lip thick, weakly prosocline ( Fig. 9B View FIG ), simple; inner lip slightly concave to almost straight ( Fig. 9A View FIG ), upper half covered by thick callus, lower half as thick edge ( Fig. 9A View FIG ). Umbilicus with middle fold, wide, open; c. 3/4 covered by callus with sinuous edge; its aperture occupying c. 15% of lower surface.

Measurements (width and height in mm)

Holotype ( Fig. 9 View FIG A-E): 9.2 × 8.5.

Paratype: MZSP 105144: 6.6 × 6.0.

Habitat

295-620 m depth, muddy bottoms (no living specimen).

Etymology The specific epithet is derived from the Amazon Paritintin native language, a combination of jukyry, meaning yellow, and uva, meaning spot ( Betts 1981), an allusion to the yellow spots on the shell.

MNHN

Museum National d'Histoire Naturelle

MZSP

Sao Paulo, Museu de Zoologia da Universidade de Sao Paulo

MD

Museum Donaueschingen

V

Royal British Columbia Museum - Herbarium

Kingdom

Animalia

Phylum

Mollusca

Class

Gastropoda

Order

Littorinimorpha

Family

Naticidae

Genus

Natica

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