Stigmatica splendens (Nordsieck, 1996)

De Mattia, Willy, Reier, Susanne & Haring, Elisabeth, 2021, Morphological investigation of genital organs and first insights into the phylogeny of the genus Siciliaria Vest, 1867 as a basis for a taxonomic revision (Mollusca, Gastropoda, Clausiliidae), ZooKeys 1077, pp. 1-175 : 1

Stigmatica splendens (Nordsieck, 1996)

Figs 63.3, 63.4, 64.4

Distribution.

This taxon is restricted to southern Albania from Tepelenë area near Lum i Bençës ( Nordsieck 1996: 12).

Specimens examined.

Albania, Vlorë district, Qeparo , macchia with tree spurges W of the village, 20 m, 50 m asl, 40°03'25.07"N, 19°49'47.06"E, Juhász, Kovács, Murányi, Puskás leg. W. De Mattia det., 2 dissected spm .

External morphology of the genital organs

(Fig. 63 .3). The V is much shorter than the FO. The FDBC is shorter than the SDBC+BC. The BC+SDBC is club-like in shape, large, with a more or less clear distinction between the SDBC and the BC. The D is extremely long, much longer than the SDBC+BC and slightly thinner. The V is short and very thin in diameter. The PC is ~ 3 × longer than the V. The P is large and proximally folded. The transition between P and EP is clearly visible even if the epiphallar narrowing is not evident. The ER is visible. The PR is short and robust. The E is longer than the P but thinner in diameter.

Internal morphology of the genital organs

(Fig. 63 .4). The V, the A and the P lack any macro-sculpturing. The internal surface shows a coarse fine granulation. The pseudopapilla is missing. The transition between P and E is visible. The E shows two fringed ELP that start with two smooth longitudinal pleats. They proximally fade before the VD. The epiphallar formula is: ELP.

Remarks.

The lack of the pseudopapilla represents a possible apomorphic state of the epiphallus as already seen in other genera (e.g., Montenegrina, De Mattia 2020).

Figures

Figure 63. Stigmatica pantocratoris pantocratoris (O. Boettger, 1889), Pantocrator, Corfu 63.1 whole distal genital organs 63.2 internal distal part of genital organs. Stigmatica splendens (Nordsieck, 1996), Qeparo, AL 63.3 whole distal genital organs 63.4 internal distal part of genital organs. Stigmatica pantocratoris margaritifera (Nordsieck, 1996), Krongj, AL 63.5 whole distal genital organs 63.6 internal distal part of genital organs.