Resurrection of the earthworm species Dendrobaena fedtschenkoi (Michaelsen, 1900), a former synonym of Dendrobaena byblica (Rosa, 1893) (Clitellata: Megadrili) Author Szederjesi, Tímea Author Latif, Robabeh Author Márton, Orsolya Author Csuzdi, Csaba text Zootaxa 2018 2018-10-05 4496 1 190 196 journal article 29269 10.11646/zootaxa.4496.1.14 9c5dee5f-93cb-41cb-8b5b-5c70898806d0 1175-5326 1446749 1A7C3D6F-9A8A-4A0A-B2D5-C9B8CB7F9AFD Dendrobaena fedtschenkoi ( Michaelsen, 1900 ) ( Figures 1 , 2 ) Allolobophora fedtschenkoi Michaelsen, 1900 : 7 . Dendrobaena fedtschenkoi : Zicsi 1965 : 220 . Dendrobaena byblica ( Rosa, 1893 ) : Perel 1967 : 107 (part.). Dendrobaena byblica : Perel 1979 : 232 (part.). Dendrobaena byblica : Zicsi 1982 : 428 (part.). Dendrobaena byblica : Kvavadze 1985 : 137 (part.) Omodeoia fedtschenkoi : Kvavadze 1993 : 132 . Dendrobaena byblica : Csuzdi 2012 : 97 –99 (part.). Holotype . HNHM /12665, Tajikistan , upper flow of the Zeravshan River , leg. A. Fedtschenko. Additional material. HNHM/7537 6 ex., HNHM/7539 8 ex., Uzbekistan, 80 km from Taskent, Chatkal Mountain Forest Reserve, 1200 m , under Prunus , valley of Bashkyzylsay river, leg. P. Izsépi, 28.05.1972 . HNHM/ 11503 39 ex., Uzbekistan, Tien Shan, Chatkal Mountain Forest Reserve, under Populus nigra , leg. Cs. Csuzdi, 28.05.1983 . HNHM/11506 6 ex., Uzbekistan, Tien Shan, Chatkal Mountain Forest Reserve, leg. Cs. Csuzdi, 28.05.1983 . HNHM/11510 16 ex., Uzbekistan, Tien Shan, Chatkal Mountain Forest Reserve, stream bank, leg. Cs. Csuzdi, 28.05.1983 . HNHM/11513 9 ex., Uzbekistan, Tien Shan, Chatkal Mountain Forest Reserve, bank of a small stream, leg. Cs. Csuzdi, 29.05.1983 . HNHM/11515 9 ex., Uzbekistan, Tien Shan, Chatkal Mountain Forest Reserve, bank of a small stream, grassy side, leg. Cs. Csuzdi, 29.05.1983 . HNHM/11516 2 ex., Uzbekistan, Chimgon, leg. Gy. Sipos, 0 5.1989. HNHM/11525 6 ex., Uzbekistan, Tien Shan foothills, valley of Aksak-Ata river, 1400 m , leg. K. Márialigeti, 29.05.1989 . HNHM/17189 2 ex., Iran, Kermanshah Province, near of Kahriz-e Kalan (N 34°22'4.2'', E47°45'57.0''), leg. R. Latif, 0 4.05.2013. FIGURE 1. Ventrolateral view of Dendrobaena fedtschenkoi (Michaelsen, 1900) . Cl = clitellum, Tb = tubercles, Mp = male pore. FIGURE 2. Collecting localities of D. fedtschenkoi (black squares). FIGURE 3. Bayesian inference tree of the Dendrobaena byblica species group including D. fedtschenkoi . Numbers indicate the posterior probability values. Description of holotype . The specimen cut in two pieces. Length altogether 62 mm , diameter 4 mm . Number of segments 126. Pigmentation greyish preserved. Prostomium epilobous ½ closed. First dorsal pore at intersegmental furrow 10/11. Setae distant, arrangement behind clitellum: aa : ab : bc : cd : dd = 1.5:1.07:1.07:1:2.8. Male pores minute on segment 15. Nephridial pores irregularly alternate between setal line b and above d . Clitellum on segments ¾24–¾30. Tubercula pubertatis on 25–29. Glandular tumescence on segments 8 ab , 10, 11 cd . Dissepiments 6/7–11/12 slightly thickened. Testes and funnels free, paired in segments 10–11. Four pairs of seminal vesicles in 9–12. Two pairs of spermathecae with long stalks openings in setal line d in 9/10, 10/11. Calciferous glands in segment 10–12, without distinct diverticula. Last pair of hearts in 11, with a pair of extraesophageal vessels in 12. Nephridial bladders biscuit-shaped. Crop in segments 15–16, and gizzard in segments 17–18. Typhlosolis small, slightly biramous. The cross-section of the longitudinal muscle layer of pinnate type . Description of additional material. Length 30–74 mm , diameter 3–5 mm . Number of segments 107–140. Pigmentation greyish preserved. Prostomium epilobous ½ closed. First dorsal pore at intersegmental furrow 10/11. Setae distant, arrangement behind clitellum: aa : ab : bc : cd : dd = 1.33:1.02:1.05:1:2.61. Male pores minute on segment 15. Nephridial pores irregularly alternate between setal line b and above d . Clitellum on segments ½24, 25–½30, 30. Tubercula pubertatis on 25–29. Glandular tumescence on segments 8 ab , 10, 11 cd . Dissepiments 6/7–11/12 slightly thickened. Testes and funnels free, paired in segments 10–11. Four pairs of seminal vesicles in 9–12. Two pairs of spermathecae with long stalks openings in setal line d in 9/10, 10/11. Calciferous glands in segment 10–12, without distinct diverticula. Last pair of hearts in 11, with a pair of extraesophageal vessels in 12. Nephridial bladders biscuit-shaped. Crop in segments 15–16, and gizzard in segments 17–18. Typhlosolis small, slightly biramous. The cross-section of the longitudinal muscle layer of pinnate type . Remarks. No morphological differences were observed between the holotype and the newly reported material from Iran and Uzbekistan . This species is a relatively large-bodied member of the D. byblica species complex lacking red pigmentation even when alive, it lives in the upper soil layer and belongs to the endogeic-polyhumic ecological category. D. fedtschenkoi differs in its clitellum and tubercles (¾24, 25–½30, 30; 25–29 respectively) from D . sp. "Istranca" (cl. 25–30 and tb. 1/n25, 26–½29), D. daghestanensis (cl. 24–30 and tb. 26–29) and D. byblica (cl. 25– 30 and tb. 26–28). It also differs from D. daghestanensis and D . sp. in the number of the seminal vesicles (4 vs . 3 pairs) and from D. byblica with its body size ( 20–40 mm vs. 30–74 mm ) ( Table 3 , for more detailed descriptions of the byblica forms see Zicsi 1965 and Szederjesi et al. 2018 ).