Columbinia convexivolvis H. Nordsieck, 2005

CLASSE: GASTROPODA: TERRESTRE

FAMÍLIA: CLAUSILIIDAE

ESPÉCIE: Columbinia convexivolvis H. Nordsieck, 2005

Tamanho médio: 16 mm

Ocorrência: Peru (Pasco)

Localidade tipo: Peru, “Peru, banks of Rio Oxabamba”

Nome original: Columbinia (Columbinia) convexivolvis H. Nordsieck, 2005

Etimologia: o nome da espécie, nomeada por Weyrauch em seus rótulos, por suas espirais arredondadas, do Latim: “convexi” = arredondado, “volvis“= espiral

Descrição original:

(Nordsieck, 2005): “Shell with conical apical part, whorls much rounded; whitish yellowish-brown; teleoconch whorls obliquely ribbed, on the neck hardly coarser; neck rounded, dorsally inflated, with subsutural swelling; aperture descending, turned outward, roundish-oval to oval, yellowish-brown inside; superior lamella continuous with spiral lamella by a faint curve, lamellae at the connection slightly lowered; inferior lamella in high position, straightly ascending with a weak spiral, high inwards, in front lowered on the columellar edge, hardly bent and ending; subcolumellar lamella descending to the lunellar, lower end separated from lunella, in oblique view visible far inwards;

lunellar dorsally situated, principal plica ending about laterally; upper palatal plica parallel to principal plica, connected with lunella by a curve, lunella callous, arcuate, posterior lower palatal plica weakly developed, connected with lunella by an obtuse angle; clausilium plate in oblique view fully visible, distally somewhat pointed, in part with outer corner.”

Fotos: (1) Nordsieck, 2005: HOLOTYPE de Columbinia convexivolvis, Museu Nacional de História Natural, Paris, MNHN, Peru, banks of Rio Oxabamba, 1879, leg. BER, H = 16.4 mm

Figura: Nordsieck, 2005:

(1) Columbinia bartletti H. Adams, LECTOTYPE, NHMUK 1867.5.18.1, Peru [on the river Ucayali], leg. BARTLETT, H = 23.35 mm;

(2) Columbinia ehrmanni, HOLOTYPE, SMF 328193, Peru, Callanga, ex SCHLÜTER, H = 24.1 mm;

(3) Columbinia adamsiana L. Pfeiffer, LECTOTYPE, NHMUK 1958.9.3.5, Peru [ad fluvium Chanchamaya], ex THAMM, H = 17.2 mm

(4) Columbinia convexivolvis, HOLOTYPE, MNHN, Peru, banks of Rio Oxabamba, 1879, leg. BER, H = 16.4 mm;

(5) Cyclonenia hemmeni, HOLOTYPE  SMF 327767, Peru, Dept. Cajamarca, ca. km 148.2 road Pacasmayo-Cajamarca (ca. 2500 m), 27.x.2004, leg. HEMMEN, H = 15.2 mm;

(6) Cyclonenia gibber sagasteguii, subsp., HOLOTYPE, SMF 172140, Peru, Dept. La Libertad, Prov. Bolivar, Laguna de los Ichus (3200 m), 29.v.1960, leg. SAGASTEGUI, H = 17.8 mm;

(7) Neniella strictecostata, HOLOTYPE, SMF 327789, Peru, Dept. Amazonas, ca. 20 km from bridge (over Rio Marañon) near Balsas to Leymebamba, 2.xi.2004, leg. HEMMEN, H = 15.4 mm

Fontes:

Descrição original: (como Columbinia (Columbinia) convexivolvis H. Nordsieck, 2005) 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): 205, fig. 4

Nordsieck, H. (2007). Worldwide Door Snails (Clausiliidae), Recent and Fossil. ConchBooks, Hackenheim, 214 pp.
página(s): 39

Molluscabase: https://molluscabase.org/aphia.php?p=taxdetails&id=1291573