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Fig. 12 | Frontiers in Zoology

Fig. 12

From: Support for a radiation of free-living flatworms in the African Great Lakes region and the description of five new Macrostomum species

Fig. 12

Micrographs of reproductive structures of field-collected Macrostomum longispermatum. Brackets denote accessions of deposited specimens, with MTP LS 2598 being the HOLOTYPE. a Vagina with shell glands (MTP LS 2695). b Ripe testis with bundles of elongating sperm (MTP LS 2683). c Stitched image of a sperm with bristles and a brush (MTP LS 2613). d Female antrum containing sperm, note the thick anterior epithelium (MTP LS 2695). e Ripe ovary and parts of a developing egg (MTP LS 2683). f Egg and sperm inside the female antrum (MTP LS 2598). g Overview of the male system with stylet, vesicula granulorum, and both seminal vesicles (MTP LS 2613). h Detail of the true seminal vesicle and the vesicula granulorum. Note the sperm inside the vesicula granulorum (MTP LS 2613). i Detail of the distal stylet thickening (MTP LS 2598). j Another detail of the distal stylet thickening. Note the difference in the shape of the larger part of the thickening (MTP LS 2613). Scale bars indicates 20 μm

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Frontiers in Zoology

ISSN: 1742-9994