Andiniastra violascens H. Nordsieck, 2005

CLASSE: GASTROPODA: TERRESTRE

FAMÍLIA: CLAUSILIIDAE

ESPÉCIE: Andiniastra violascens H. Nordsieck, 2005

Tamanho médio: 21.7 – 27.7 mm

Ocorrência: Peru (Amazonas)

Localidade tipo: Peru, Departamento de Amazonas, “ca. 35 km from Chachapoyas to Pedro Ruiz”

Nome original: Andiniastra violascens H. Nordsieck, 2005

Etimologia: o nome da espécie é uma referência à coloração da concha, do Latim “violascens” = violet-coloured

Descrição original:

(Nordsieck, 2005): “Shell slightly decollated (only uppermost whorls missing), occasionally entire, with conical apical part, whorls less rounded; violet reddish-brown, with white ribs; teleoconch whorls regularly densely ribbed, riblets ± lengthwise white, in part incompletely, especially on the lower whorls and parts rubbed off, in part below the suture patches of white riblets alternating with non-white ones;

riblets on the neck ± coarser and somewhat undulating; neck nearly rounded, ± with subsutural swelling, umbilicus open; aperture protruding, roundish-oval to rhombic-oval, reddish-brown inside, with expanded peristome; superior lamella high, continuous
with spiral lamella by a ± marked curve, faintly or not elongated by its side, lamellae at the connection much lowered, spiral lamella lower; inferior lamella ascending with a weak spiral, high or moderately high inwards, in front lowered and ± bent on the columellar edge, slightly or hardly not thickened and ending; subcolumellar lamella descending to the lunellar, lower end separated from lunella, in oblique view visible far inwards;

lunellar dorsal-dorsolateral in position, in part dorsal, principal plica ending dorsolaterally, in part more dorsally or more laterally; upper palatal plica continuous with lunella by a curve or an angle, lunella straight or somewhat arcuate, lower palatal plicae missing, rarely lower end of lunella spur-like widened = rudiment of anterior lower palatal plica; clausilium plate in oblique
view fully visible, in part leaving gaps at the palatal and the columellar side, distally ± pointed and bent outward.”

Fotos: (1) Forschungsinstitut und Naturmuseum Senckenberg: HOLOTYPE de Andiniastra violascens, SMF 328068, Peru, “Dept. Amazonas, ca. 35 km from Chachapoyas to Pedro Ruiz, 06°03.706′ S 77°55.042′ W”, 28.iii.2004, leg. Hemmen, 27.6mm

Figura: Nordsieck, 2005:

(8) Parabalea latestriata latestriata WEYRAUCH, HOLOTYPE, SMF 156232, Peru, Dept. Junin, above Acolla, on road Tarma-Jauja (3700 m), 28.ii.1957, leg. Weyrauch, 16.0 mm;

(9) Parabalea latestriata densestriata, HOLOTYPE, SMF 328099, Peru, Dept. Junin, ca. km 35.5 road La Oroya-Junin (ca. 3800 m), 19.x.2004, leg. Hemmen, 13.1 mm;

(10) Parabalea gibbosula, HOLOTYPE, SMF 328033, Peru, Dept. Junin, ca. 22 km from Tarma to La Oroya (ca. 4000 m), 15.x.2004, leg. Hemmen, 13.1 mm;

(11) Gracilinenia nitens, HOLOTYPE, SMF 328025, Peru, Dept. Huanuco, waterfalls of Tambillo (ca. 13 km S Tingo Maria), 15.iv.2005, leg. Hemmen, 16.1 mm;

(12) Andiniastra violascens, HOLOTYPE, SMF 328068, Peru, Dept. Amazonas, ca. 35 km from Chachapoyas to Pedro Ruiz, 28.iii.2004, leg. Hemmen, 27.6 mm;

(13) Cylindronenia pangamitoensis pongoensis, HOLOTYPE, SMF 322804, Peru, Dept. Amazonas, Pongo de Rentema-Bagua Chica, xii.1998, leg. Richards, 21.3 mm;

(14) Cylindronenia pangamitoensis pangamitoensis (Loosjes & Loosjesvan Bemmel), PARATYPE, NNM 56308a, Peru, Dept. Amazonas, Pangamito (S Bagua, E Bagua Grande) (1000 m), 22.X.1980, leg. Hoocking, 16.1 mm

Fontes:

Descrição original: Nordsieck, H. (2005). Revision of the system of the Peruvian Neniinae (Gastropoda: Stylommatophora: Clausiliidae), with description of new taxa. Archiv für Molluskenkunde. 134 (2): 197-221, 3 pls. Frankfurt am Main.
página(s): 210, fig. 12

Senckenberg. Collection Mollusca SMF. Occurrence dataset https://doi.org/10.15468/ohuexz accessed via GBIF.org on 2025-12-11. https://www.gbif.org/occurrence/207680334

Molluscabase: https://molluscabase.org/aphia.php?p=taxdetails&id=1291571