Two New Species of Freshwater Planarian (Platyhelminthes, Tricladida, Dugesiidae, Dugesia) from Southern China Exhibit Unusual Karyotypes, with a Discussion on Reproduction in Aneuploid Species

<div>Dugesia pendula. Photomicrographs of sagittal (a–e) and horizontal (f) sections. (a, b) Paratype ZMHNU-LHCA2, showing suspended penis papilla and seminal vesicle. (c, d) Holotype ZMHNU-LHCA3, showing suspended penis papilla, seminal vesicle, diaphragm, and copulatory bursa. (e) Paratype ZMHNU-LHCA9, showing suspended penis papilla, copulatory bursa, diaphragm, and seminal vesicle. (f) Paratype ZMHNU-LHCA5, showing suspended penis papilla, seminal vesicle, and ejaculatory duct. Scale bars: 100 μm. Abbreviations: see the caption of Figure <a href="../fig5/">5</a>.</div>

Journal of Zoological Systematics and Evolutionary Research

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Figure 6

Figure 6: Two New Species of Freshwater Planarian (Platyhelminthes, Tricladida, Dugesiidae, Dugesia) from Southern China Exhibit Unusual Karyotypes, with a Discussion on Reproduction in Aneuploid Species

Figure 6 | Two New Species of Freshwater Planarian (Platyhelminthes, Tricladida, Dugesiidae, Dugesia) from Southern China Exhibit Unusual Karyotypes, with a Discussion on Reproduction in Aneuploid Species 