Euspira macilenta (Philippi, 1844)

Huelsken, Thomas, Marek, Carina, Schreiber, Stefan, Schmidt, Iris & Mann, Michael Holl-, 2008, The Naticidae (Mollusca: Gastropoda) of Giglio Island (Tuscany, Italy): Shell characters, live animals, and a molecular analysis of egg masses, Zootaxa 1770, pp. 1-40 : 31-32

publication ID

https://doi.org/ 10.5281/zenodo.182119

DOI

https://doi.org/10.5281/zenodo.6234487

persistent identifier

https://treatment.plazi.org/id/E227B42A-1B36-6434-FF3A-3AA6365BB38A

treatment provided by

Plazi

scientific name

Euspira macilenta (Philippi, 1844)
status

 

Euspira macilenta (Philippi, 1844) View in CoL — Fig. 9 View FIGURE 9 B

Natica macilenta Philippi, R.A. (1844) Enumeratio molluscorum Siciliae cum viventium tum in tellure tertiaria fossilium, quae in itinere suo observavit. Vol. 2, p. 140, pl. 24, fig. 14.

Natica macilenta Philippi, 1844 View in CoL . Weinkauff (1867), p. 252; Hidalgo (1917), pp. 480, 488; Schiró (1977b), pp. 16–17, pl. 2 (second row)

Natica (Naticina) macilenta (Philippi, 1844) View in CoL . Kobelt (1901), p. 92, pl. 52, figs. 13, 14

Lunatia macilenta (Philippi, 1844) View in CoL . Sabelli & Spada (1977), p. 2, pl. 1, figs. 5 a–b; Terreni (1981), p. 31; Nordsieck (1982), p. 184, pl. 57, p. 405, fig. 62.26; De Smit & Bàba (2001), p. 98

+ Lunatia macilenta rizzae (Philippi, 1844) . Nordsieck (1982), p. 184, pl. 57, fig. 62.27

Description

Size: Up to 9.1 mm m.o.d (Torre Vieja, Muricia, Spain; MHC#070908.1). Specimen (n = 1) from Giglio Island: 10 mm height; 8 mm width. Ratio [h/w] = 1.2. Aperture approximately 67% of shell height. General shape: High spired, conical, 4.25 spiral whorls [teleoconch: 2.75]. Sculpture: None.

Shell color: Glossy, white to cream background color with indistinct irregular, reddish-brown, vertical flames distributed over entire shell; indistinct broad, whitish band directly below suture, marked with brown flecks; another lighter band around middle of body whorl, interrupted by a few of the vertical brown lines, bent into indistinct arrowhead shape; basal area including most of umbilical border white.

Protoconch: Uncolored, whitish; 1.5 embryonal whorls.

Aperture & outer lip: Aperture half-moon shaped, oblique, angled at the top and well-rounded at the bottom; external lip simple, sharp; inner lip tinged with brown.

Umbilical area: Deep, whitish umbilicus, with a carved-out umbilical canal or furrow inside; no funicle evident; parietal callus uncolored at the top, turning brown towards the columellar callus, callus covering the umbilical area triangularly at the top, tapering sharply towards midpoint of columellar, leaving the anterior umbilical area open;

Operculum: Corneous, honey-colored (Schiró 1977, MHC#070908.1).

Animal: Unknown.

Differential diagnosis: This species is the most slender naticid in the Mediterranean. Its color pattern and slender form as well as the carved-out umbilical canal serve to distinguish it from E. nitida and E. guillemini (Payraudeau, 1826) , the latter of which has not been found on Giglio Island.

Geographical distribution

Giglio Island:One empty shell was collected at Pt. del Morto (6) in 38 m depth in coarse sand. General distribution: E. macilenta is spread throughout the western Mediterranean Sea and in the eastern part except for the Aegean Sea and some other limited zones ( Settepassi 1972, Schiró 1977). The species is rather uncommon.

Kingdom

Animalia

Phylum

Mollusca

Class

Gastropoda

Order

Littorinimorpha

Family

Naticidae

SubFamily

Polinicinae

Genus

Euspira

Kingdom

Animalia

Phylum

Mollusca

Class

Gastropoda

Order

Littorinimorpha

Family

Naticidae

SubFamily

Polinicinae

Genus

Natica

Loc

Euspira macilenta (Philippi, 1844)

Huelsken, Thomas, Marek, Carina, Schreiber, Stefan, Schmidt, Iris & Mann, Michael Holl- 2008
2008
Loc

Natica macilenta

Philippi 1844
1844
Loc

Natica (Naticina) macilenta

Philippi 1844
1844
Loc

Lunatia macilenta

Philippi 1844
1844
Loc

Lunatia macilenta rizzae

Philippi 1844
1844
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