Chondrina aguilari Altimira, 1967

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 : 32-33

Chondrina aguilari Altimira, 1967 (pl. 9 fig. D; pl. 10 figs H–J)

Chondrina (s.s.) pulchella aguilari Altimira, 1967: 24 . Lectotype (design. Gittenberger 1973: 222):, Spain, Lérida, Congost d’Erinyá; RMNH 54873 (pl. 10, fig. I)

Chondrina farinesii farinesii: Gittenberger, 1973 [part.]: 213, fig. 120. Not Des Moulins, 1835.

Description.—Shell slender fusiform with an elongated conical spire, relatively small, dark brown. With 6¼–7 whorls. Teleoconch with more or less obsolete, irregular growthlines. The apertural teeth are characteristic. The angularis is a whitish, dot-like callus, which may be connected to the insertion of the palatal lip, or is lacking completely. In specimens with the most prominently developed teeth, the two palatals are relatively high but short, and do not reach the apertural lip. Usually, the palatalis inferior is somewhat more prominent than the superior. The palatals may be obsolete, but the parietalis and the columellaris are always present. Rarely there is an inconspicuous infracolumellaris and even more rarely a vaguely discernible infrapalatalis (pl. 10, fig. J). Shell height 4.4–5.7 mm, width 1.7–2.1 mm.

Notes.—Some large samples of Chondrina ’s, collected by C. Altimira, J.L.M. Donders & A.J. de Winter, F.M. Vilella y Tejedo and G.J.M. Visser & J.A. Zoer, made convincingly clear that C. aguilari is a separate species that may occur sympatrically, without any intermediate specimens, with C. massotiana sexplicata . Shells of the former species are smaller and usually more slender, with a whitish, dot-like instead of linear callus, that may be obsolete or lacking completely, and clearly different palatal folds. According to the molecular data ( Kokshoorn et al. 2010)(fig. 4), this species is closely related to a still poorly known taxon occurring more to the East ( Chondrina spec. 2 ; pl. 12 figs A–D). Another taxon that might be closely related, but for which no molecular data are available has its poorly defined range more to the West ( fig. 6 ).

Figures

FIGURE 6. Distribution of Chondrina species in northeastern Spain. T = Type locality, P = Photographed, see plates.