Macrostomum virginianum

Ferguson, 1937

Macrostomum virginianum Fig 18-24.jpg

The penis-stilette is unusually small for an animal of this size. It measures 35micro in length. Morphologically, the stilette is a simple, curved, funnel-like tube with a sub-terminal opening which is subtended by the pointed end. The sperm-cell is spindle-shaped. Two setae are present and there is a very large undulating 'Mittelrippe' on the mid-line of the surface of the cell extending from feeler to 'tail'. Chromatin material is not visible in this sperm-cell. p. 132/133

Macrostomum virginianum Fig 1.jpg

Macrostomum virginianum Fig 2-4.jpg

The stilette is curved and obliquely truncated on its convex side. This conical tube is bent at a right angle near its proximal end. p. 27

Macrostomum virginianum Fig 5.jpg

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Scratchpads developed and conceived by: Vince Smith, Simon Rycroft, Dave Roberts, Ben Scott...