Abida secale peteri, Kokshoorn & Gittenberger, 2010

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 : 21

Abida secale peteri subspec. nov. (pl. 7 figs A–C)

Type series.— Spain, Lérida , Sierra del Cadí, Pedraforca mtn. Holotype ( RMNH 109890 ) : 2,300 m alt., B. Kokshoorn & P. Lindenburg leg., 06-viii-2004. Paratypes: type locality ( RMNH 99135 /23); 2,250 m alt., B. Kokshoorn & P. Lindenburg leg., 06-viii-2004 ( RMNH 54961 /6); E-side, c. 50 m below the coll, 2,250 m alt., B. Kokshoorn & P. Lindenburg leg., 06-viii-2004 ( RMNH 99136 /5) .

Distribution.—See fig. 2 .

Description (n=35).—Shell slender spindle-shaped, with 7 3/8–8 1/8 slightly inflated whorls, sculptured with regularly placed, vague axial ribs. The sculpture is often partially faded. Body whorl slightly flattened and more or less narrowed, without apparent keel. Palatal side of the aperture slightly protruding in the middle (in lateral view). Umbilicus widely open. Shell height, 5.1–7.3 mm; width, 2.0– 2.2 mm.

Apertural lip thickened, strongly reflected and discontinous at the parietal side or connected by a thin callus. Angularis not connected with spiralis. Subangularis absent. Columellaris not reaching beyond columella, clearly broader than subcolumellaris and parietalis. Infracolumellaris like columellaris but less prominent. Palatalis inferior and palatalis superior clearly indented and almost reaching the edge of the aperture. At the anterodorsal palatal center a weak suprapalatalis and infrapalatalis are present. A suturalis is usually absent.

Differentiation.—This subspecies shares character states with both A. s. lilietensis and A. s. brauniopsis. These two subspecies occur at the foot and along the flanks of the mountain, i.e. A. s. brauniopsis on the south- and westside, and A. s. lilietensis on the NE-flank. The pronounced columellaris, widely open umbilicus and the strongly reflected apertural lip point to a relation with A. s. brauniopsis. However, along the eastflank of the mountain, at altitudes from 1,650 to 2,100 m, shells that are clearly intermediate between A. s. peteri and A. s. lilietensis are found. These specimens have a discontinuous apertural lip and the more slender shape that links these two taxa. A. s. peteri resembles A. s. cadiensis and A. s. merijni, but differs in that it is somewhat smaller and less conical and by its very fine striae that are more pronounced in both A. s. cadiensis and A. s. merijni.

Derivatio nominis.—This subspecies is named after Mr. Peter Lindenburg. Without his help and support, the first fieldwork period of the first author would not have been possible. Together collecting trips to the peaks of the Pedraforca mtn and the Torre del Cadí mtn were made, where material of this new subspecies was collected.

Genetic barcode.—GenBank accession numbers EU395369 – EU395370 , EU395373 , EU395378 .

Figures

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