Columbinia ehrmanni H. Nordsieck, 2005

CLASSE: GASTROPODA: TERRESTRE

FAMÍLIA: CLAUSILIIDAE

ESPÉCIE: Columbinia ehrmanni H. Nordsieck, 2005

Tamanho médio: 24 mm

Ocorrência: Peru (Huánuco)

Localidade tipo: Peru, “Callanga, coll. EHRMANN, ex SCHLÜTER”

Comentários: Callanga está cerca de 300 km ao Sul de Tingo Maria

Nome original: Columbinia (Steatonenia) ehrmanni H. Nordsieck, 2005

Etimologia: o nome da espécie é uma homenagem ao malacologista alemão Paul Hermann Felix Ehrmann (1868-1937)

Descrição original:

(Nordsieck, 2005): “Shell with broad conical apical part, whorls less rounded; yellowish reddish-brown, with light subsutural band, especially on the upper whorls; first teleoconch whorl obliquely ribbed, the following ones with undulating ribs, on the neck ribs more narrowly spaced and less undulating; neck nearly rounded, with subsutural swelling; aperture protruding, oval to rhombicoval, yellowish reddish-brown inside; superior lamella high, continuous with spiral lamella by a marked curve, in part elongated by its side, lamellae at the connection hardly lowered, spiral lamella of different height; inferior lamella ascending with a weak spiral, moderately high inwards, in front lowered and bent on the columellar edge, continued to the peristome;

subcolumellar lamella descending to the lunellar, lower end separated from lunella, in oblique view visible ± far inwards; lunellar dorsal-dorsolateral in position, principal plica ending dorsolaterally; upper palatal plica continuous with lunella by a curve or an indistinct angle, lunella with straight lower part, lower end widened = rudiment of posterior lower palatal plica; clausilium plate in oblique view fully visible, relatively broad, in part leaving a gap at the palatal side, distally somewhat pointed at the outer end.”

Fotos: (1) Nordsieck, 2005: HOLOTYPE de Columbinia ehrmanni, HOLOTYPE, SMF 328193, Peru, Callanga, ex Schlüter, 24.1 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 (Steatonenia) ehrmanni 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): 206, fig. 2

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=1291578