Abida secale margaridae Bech, 1993

Kokshoorn, Bas & Gittenberger, Edmund, 2010, Chondrinidae taxonomy revisited: New synonymies, new taxa, and a checklist of species and subspecies (Mollusca: Gastropoda: Pulmonata) 2539, Zootaxa 2539 (1), pp. 1-62 : 17

Abida secale margaridae Bech, 1993 (pl. 4 figs F–K)

Abida secale margaridae Bech, 1993: 50–51 .

Type locality: Spain, Lérida, road to Collado de Toses, between Das and Urús.

Holotype: Museo de Zoologia , Barcelona.

Distribution.—See fig. 2 .

Description (n=13).—Shell slender, elongated cylindro-conical, with 9¼–10 6/8 weakly inflated whorls, sculptured with regularly placed axial ribs. Body whorl obliquely flattened, slightly narrowed, with a distinct keel. Palatalis superior accompanied by a clear external indentation of the apertural lip, usually resulting in a slightly concave palatal apertural border. Palatal side of aperture slightly leaning forward (in lateral view). Shell height, 10.2–12.3 mm; width (of body whorl), 3.0– 3.5 mm. The maximum shell width is reached in the upper half of the shell. Umbilicus widely open. Apertural lip strongly reflected, moderately to strongly thickened. Parietal edges usually connected by a thin callus. Angularis and spiralis connected, with a slight indentation or a weak callus. Subangularis present, partly attached to angularis. Parietalis present, infraparietalis usually present, and if so, accompanied by several minor folds on the parietal and columellar side. Columellaris reaching more or less clearly beyond the columella, occasionally up to the apertural lip. Infracolumellaris weakly developed, not or hardly reaching beyond the columella. Palatalis inferior and palatalis superior reaching the edge of the aperture. In frontal view, no more palatal folds are visible inside the aperture, but there are a suturalis, a suprapalatalis and an infrapalatalis near the inner end of the two more prominent palatals, as far as ½–¾ whorl from the aperture.

Genetic barcode.—GenBank accession numbers EU395394 – EU395396 .

Notes.— Abida s. margaridae is very variable in shell characters, even within populations (pl. 4 figs F–H). The present description of this subspecies is based on material collected near (or at) the type locality ( RMNH 100613 ); Spain, Gerona , road from Das to Masella (GI-404), 1 km SE of Das (= 1.5 km S of Alp), 1,325 m alt., 42.36127°N / 1.87672°E .

Figures

FIGURE 2. Distribution of Abida secale subspecies (I) in NE Spain and Andorra.