Turbellarian taxonomic database
Dugesiidae Reynoldsonia Diagnosis
Slender Dugesiidae with two eyes, rounded head with two sensory pits, lacking pigment. Testes numerous, discrete, distributed throughout the body-length, principally ventral in position. Penis large, muscular, with an eversible tip, with a bifid seminal vesicle, without a diaphragm in the ejaculatory duct. Bursal stalk with very thick ectal musculature consisting of intermingled circular and longitudinal fibres. Oviducts with caudal branch, enter bursal stalk separately above zone of dactylose projections of the busal stalk, and above zone of shell glands. Cocoon unknown. Inhabitants of freshwater.
[From Ball IR (1974): 150]
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