Turbellarian taxonomic database
Eukalyptorhynchia Koinocystididae Diagnosis
Eukalyptorhynchia. Proboscis: cone with apex; bulb with cell nuclei; no cellular mantle, muscle plates, cuticular hooks or secretory girdle (ampullae). Pharynx in the anterior body half, without proximal cuticular knobs. Paired testes and paired separate ovaries and yolk glands. copulatory organ of conjuncta duplex type, with spiny structures (cirrus, papillae) or cuticular stylets, in exceptional cases unarmed. Paired oviducts and common vitelloduct opening in an unpaired seminal receptacle with strong distal sphincter.Common atrium ventrocaudally, with anterior stalked uterus and posterior copulatory bursa (in exceptional cases lacking).
[From Karling TG (1980): 242]
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