Travunijana Grego & Gloeer , 2019

Falniowski, Andrzej, Lewarne, Brian, Rysiewska, Aleksandra, Osikowski, Artur & Hofman, Sebastian, 2021, Crenobiont, stygophile and stygobiont molluscs in the hydrographic area of the Trebisnjica River Basin, ZooKeys 1047, pp. 61-89 : 61

Redescription of the genus Travunijana Grego & Gloeer, 2019

Diagnosis.

Shell conic with moderately convex whorls, big sphaerical bursa copulatrix and two nearly vestigial receptacula seminis, penis long and slender, distally forming a slightly bent filament, at the base of the filament an outgrowth on the left side of the penis, formed of two finger-like lobes.

Description.

The shell (Fig. 9 ) as described by Grego and Glöer (2019). The female reproductive organs (Fig. 10 ) with bulbous loop of (renal) oviduct, big and spherical bursa copulatrix and two nearly vestigial receptacula seminis: proximal (rs2 of Radoman 1973) and distal (rs1 of Radoman 1973) one. The penis (Fig. 11 ) long and slender, slightly bent at its medial section, at the base of the long filamentous distal section and an outgrowth on the left side, consisted of two finger-like lobes.

Travunijana vruljakensis was common at the studied territory, found at the localities 12, 13, 14, 17 and 21. At 12, 13 and 17 (Fig. 4 ) interstitially pumped.

Figures

Figure 4. Distribution of the studied taxa. Localities' numbers correspond to Table 1.

Figure 9. Shells: A-L Travunijana vruljakensis M-P Iglicopsis butoti M holotype N 2 F 61 O 2 F 68 P 2 F 69 (extraction numbers, see Table 3). Scale bars: 1 mm.

Figure 10. Female reproductive organs of Travunijana vruljakensis (bc - bursa copulatrix, cbc - duct of bursa, ga - albuminoid gland, gn - nidamental gland, gp - gonoporus, ov - oviduct, ovl - loop of (renal) oviduct, rs 1 - distal seminal receptacle, rs 2 - proximal seminal receptacle). Scale bar: 0.25 mm.

Figure 11. Penis of Travunijana vruljakensis. Scale bars: 0.5 mm.