The haptor is triangular, subsymmetrical or symmetrical, and bears 54–102 clamps, arranged in 2 equal or sub-equal lateral rows, one on each side.

There are also two septate oval buccal suckers at the anterior extremity, provided with a row of tiny papillae visible on ventral rims.

The digestive organs include an anterior, terminal mouth, a small subspherical pharynx, a long thin oesophagus without lateral diverticula and a posterior intestine that bifurcates at the level of the genital atrium in two lateral branches apparently fused just anterior to the haptor; the left branch extends into haptor for a short distance.

The atrium proper is shaped as an inverted heart, armed with numerous conical spines of similar sizes; the spines are denser in the centre than in lateral parts, arranged as one main anterior group and two postero-lateral smaller groups called “pockets”, a vagina with a middorsal pore visible in most specimens, posterior to genital atrium, a single complex ovary and 13–29 testes, subspherical to oval, post-ovarian, occurring in 2 rows generally intercaecal, limited to posterior half of body proper.

[1] The species name, isyebi refers to "ISYEB", an acronym for "Institut de Systématique, Évolution, Biodiversité" as an acknowledgement of the help offered to the first author.