Dendrobaena serbica, Sapkarev, 1993

Dendrobaena serbica Karaman, 1973

( Figure 1b View FIGURE 1 )

Dendrobaena serbica Karaman, 1973: 180.

Dendrobaena serbica Šapkarev, 1993: 17 ; Stojanović et al. 2008: 60; Csuzdi, 2012: 97–99; Trakić et al. 2016: 263; Stojanović et al. 2018: 139; Stojanović-Petrović et al. 2020: 163–164.

Material examined. CEKUS/2806 , CEKUS/2807 , CEKUS/2808 , CEKUS/2809 CEKUS/2810 , 5 exp., Serbia, Kopaonik Mt. (Lukovska Banja), 43.16 N 21.03 E, beech forest, F.Popović, 11.03.2020 GoogleMaps ; CEKUS/2812 , CEKUS/2813 , CEKUS/2814 , CEKUS/2815 4 exp., Serbia, Kopaonik Mt. (Kuršumlijska Banja), 43.25 N 20.69 E, oak forest, F. Popović, 04.05.2021 GoogleMaps ; CEKUS/2818 , CEKUS/2819 2 exp., Serbia, Kopaonik Mt. (Metođe), 43.3 N 20.85 E, river bank, F. Popović, 21.06.2021 GoogleMaps .

Morphological description. External morphology. Body pigmentation red violet in live specimens. Red violet homogeneous color in fixed specimens. Length 10–25 mm (Karaman 12–21 mm; Stojanović-Petrović et al. 12–21 mm) diameter 2 mm. Number of segments 53–89 (Karaman 58–81; Stojanović-Petrović et al. 58–81). The prostomium is prolobous to epilobous. First dorsal pore is no visible. The male aperture on the 15. segment. The female pores in 14 over setae b. The setae are widely paired. Glandular papillae surround setae a and b on segments 10 and 11. The spermathophores are situated on segments 23/24, 24/25, 25, 27, 29, 29/30 lie near b or between aa or near a or between bc setal line. Clitellum annular in segments ½ 29, 29–33, ½ 34, 34 (Karaman ½ 29, 29–33, 34; Stojanović-Petrović et al. ½ 29, 29–33, 34). Tubercula pubertatis are absent (Karaman absent; Stojanović-Petrović et al. absent).

Internal anatomy. Hearts in segments 7–11. Calciferous glands and lateral tubercles are situated in the 11. and 12. segments. Crop in segments 15–16, gizzard in segments 17–18. Three pairs of seminal vesicles in the 9, 11, and 12. segments. Two pairs of spermathecae in segments 9 and 10 segments on the septa 9/10 and 10/11. The nephridial bladders sausage-shaped. The typhlosole is club-shaped. The longitudinal muscle is pennate.

Remarks. Dendrobaena serbica was found and described by Karaman (1973), and our examined specimens are in complete agreement with her description. On the other hand, D. serbica was considered a broad-range Balkan endemic, characteristic of the Balkan part of Serbia аnd Montenegro ( Popović et al. 2023a).