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Myozona purpurea Fig 9.jpg
Myozona purpurea Fig 9.jpg
Antromacrostomum armatum Fig 12.jpg
Antromacrostomum armatum Fig 12.jpg
Myozona purpurea Fig 10.jpg
Myozona purpurea Fig 10.jpg
Macrostomum sp Fig 9.jpg
Macrostomum sp Fig 9.jpg
Black eyes are embedded in the dorso-caudal tissue. p. 1002
Dunwichia arenosa Fig 5.jpg
Dunwichia arenosa Fig 5.jpg
Dunwichia arenosa Fig 4.jpg
Dunwichia arenosa Fig 4.jpg
eyes absent. p. 995
Macrostomum boreale Fig 16-18.jpg
Macrostomum boreale Fig 16-18.jpg
Macrostomum thermale Fig 11.jpg
Macrostomum thermale Fig 11.jpg
The penis stilette is depicted as an irregular tube with a distal terminal splitting of the thickened walls. Taxonomically, M. lutheri is placed in species dubiae of the genus Macrostomum because of the unscientific methods used and the lack of material upon this animal. It is this present author's opinion that the stilette shown in figure is a greatly flattened and distorted stilette of Macrostomum bulbostylum mihi described in the same paper (GIEYSZTOR 1931). p. 143
Macrostomum thermale Fig 33-34.jpg
Macrostomum thermale Fig 33-34.jpg
The pigmentspherules composing the cup (eyes) are the smallest that I have studied. Stylet: This tubular structure presents the figure of a long funnel with a widened crenate base and a slightly expanded termination. The opening is terminal. This species possesses a unique sperm-cell. This singular cell measures 36 micro in length and is equipped with the characteristic pair of anterior setae, a very thin feeler, and a tail region which bears a pair of lateral undulating flanges, in which region the chromatin granules are located. Chromatin granules are usually located in the anterior region of the sperm cell in Macrostomum. The feeler is a highly vibratile process. p. 125
Axia gieysztori Fig 22-24.jpg
Axia gieysztori Fig 22-24.jpg
Pigment granules of the eyes quite small and not of uniform size. Penis stilette a sharply terminated conical tube, base crenated. External opening terminal with outlet on left side, point of stilette is slightly recurved. p. 426