Macrostomum collistylum Fig 1-3.jpg

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The stylet reaches its termination in a long sharpened point. p. 188 The sperm cells are elongate, undulating bodies which lack the postero-Iateral setae so common to the genus and are possessed of chromatin granules in the anterior part of the cell having the largest caliber. p. 189

Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith