stylet shaft with more than one turn

Macrostomum georgeense Fig 8.jpg

The penis stylet is a more-or-less straight tube which diminishes in diameter towards its distal tip; in fact the latter is slightly bent as shown in Figs. 5Band C. The walls of the tube around the distal terminal opening are slightly thickened. p. 54

Macrostomum xiamensis Fig 4-13.jpg

Acerose smooth penis stylet, no chitin valve in the surface. Its far-forth end show helical curly form. The penis stylet is like end of injector, opening at outboard part of helical bend. p. 703

Macrostomum xiamensis Fig 1-3.jpg

With bean-, cycle-, kidney- or long kidney-like eyes. The end of penis is spinous, twisting vertically from penis plane. p. 720

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