Turbellarian taxonomic database

Isodiametridae Aphanostoma Diagnosis

Coloured by characteristic bubbles, or uncoloured. Brain insunk. Frontal organ present. Mouth opening ventral. Rhabdoids in weak rows, or dispersed. Ovaries and testes paired. Two genital openings, very close to each other, or a single common opening. Bursa seminalis with muscular/cellular appendage, no sclerotised bursa nozzle. Sometimes concentrated actin spots in proximal bursa wall. Penis tube-like, inverted into the seminal vesicle, contained in a spherical penis sheath. Ciliated atrium present.

[From Zauchner T, Salvenmoser W, Egger B (2015): 409]

Notes from synonyms

Return to Isodiametridae Aphanostoma