Checklist / Glossiphoniidae / Helobdella / Helobdella fantasmae
Helobdella fantasmae
· Glossiphoniidae
External morphology
Body thin and lanceolate, annuli not subdivided. Dorsum with brown stripes with 1 to 2 pairs of transverse lines per annulus. Ventral side pale beige without paramedial lines. Dorsum surface lacking both papilla and tubercles. Nuchal scute and glands absent in somite VIII. One pair of eyes, well separated, in somite III. Somite I–II fused, III–IV uniannulate, V–XXV triannulate, XXVI biannulate, XVII uniannulate. Anterior sucker ovoid; mouth pore, subterminal. Caudal sucker ovoid, concave, subterminal and even pigmented. Anus at somites XXVI/XXVII, anterior to caudal sucker. Large size
Internal morphology
Male and female gonopores separated by 1 annulus. Male gonopore located at XII a1/a2. Female gonopore located at XII a2/a3. Protrusible proboscis located at the base of at somites XII/XIII. Salivary glands with diffuse parenchymal salivary cells. Oesophagus simple; crop without gastric chambers, digitiform caeca and postcaeca; intestine with 4 lobes. Reproductive system composed of 6 pairs of spherical testisacs. Short sperm ducts, reaching the back of somite XV and entering the pyriform atrial lobes, preatrial loops absent. Short ovisacs reaching somite XIII.
Habitat & range
- Habitat
- Freshwater
- Region
- South America
- Recorded from
- Rio Negro Argentina
Original description
Una especie nueva de sanguijuela del género Helobdella (Hirudinea, Glossiphoniidae) de San Carlos de Bariloche, Río Negro, Argentina