Charpentieria stenzii letochana (Gredler, 1874)

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

Charpentieria stenzii letochana (Gredler, 1874)

Figs 54.1-54.6, 56.5

Specimens examined.

Italy, Veneto, Belluno, Misurina, Val Fonda. 1500 m asl, 46°36'27.42"N, 12°12'20.01"E, [Lab ID C19_1, COI: MW758957 ], W. De Mattia and J. Macor leg. and det., 2 dissected spm .

Distribution.

Charpentieria stenzii letochana is exclusively known from Val Fonda (Belluno, Veneto) and Val Pusteria ( Schönleitental) (Bolzano, Trentino-Alto Adige), Italy ( Nordsieck 1963b: 198).

External morphology of the genital organs

(Fig. 54 .1). The V is shorter than the FO. The FDBC is as long as the SDBC+BC. The BC+SDBC is slim, club-like in shape, with a clear distinction between the SDBC and the BC. The D is much longer than the SDBC+BC and thinner. The V is short and thin in diameter. The PC is ~ 2 × longer than the V. The P is cylindrical and slightly swollen along its proximal part. The transition between P and EP is clearly visible. The PR is long and robust. The E is as long as the P but much thinner in diameter.

Internal morphology of the genital organs

(Figs 54 .2-54.6). The V presents irregular smooth pleats. The A has a fleshy, mushroom-like fold. The P shows many irregular smooth to fringed pleats. The hemipapilla is short, smooth to moderately folded. The outlet of the hemipapilla is slit-like. The E shows two moderately fringed ELP. They proximally fade before the VD.

Figures

Figure 54. Charpentieria stenzii letochana (Gredler, 1874), Val Fonda, Belluno 54.1 whole distal genital organs 54.2 internal distal part of genital organs 54.3 detail of the hemipapilla: uncut 54.4 detail of the hemipapilla: cut funnel 54.5 cross section of the pseudopapilla 54.6 cross section of the epiphallus.