Helobdella nahuelhuapensis, Gullo, Bettina Sandra, 2006

Gullo, Bettina Sandra, 2006, Helobdella nahuelhuapensis sp. nov. (Hirudinea, Glossiphoniidae), from Bariloche, Argentina, Zootaxa 1276, pp. 33-38 : 34

Helobdella nahuelhuapensis n. sp.

( Figs. 1–9 )

Figures

FIGURES 1 – 7. External morphology of H. nahuelhuapensis sp. nov. 1. Dorsal surface of holotype with randomily arranged chromatophores. 2. Ventral surface of the holotype showing one pair of inframarginal lines. 3. Dorsum of holotype showing subdivision of middorsal annuli a 1 a 2 a 3 at somite XVII and XVIII. 4. Ventral region of the holotype showing anterior sucker with mouth pore terminal. 5. Unpigmented region at somite VIII. 6. Cephalic region of holotype exhibiting two punctiform eyes. 7. Clitellar region of the paratype with male (m) and female (f) gonopores separated by one annulus.

FIGURES 8 – 9. Internal morphology of H. nahuelhuapensis sp. nov. 8. Digestive system and testisacs: proboscis (pr), oesophagus (oe), salivary glands (s), gastric chambers (ch), postcaeca (p), intestinal caeca (ic), and testisacs (t). 9. Male medial reproductive apparatus with atrium (a), sperm ducts (sd), and male pore (m). Female reproductive apparatus showing folded ovisacs (o).