Fixed adult nemerteans 

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Because adult nemerteans are being kept in the lab with no use (they are starved and who knows if they will lay eggs in the next season) we decided to fix the adults for testing the in situ. I relaxed in 7.4% MgCl2, 5-10 is enough to get them completely relaxed, and fixed in 3.7% PFA for 4h at 4°C. Henrike did 3 washes of 10 min of PTw (last one overnight), plus 1 more PTw, mqH2O, and finally 100% MeOH. 16 worms were transferred to a 15mL falcon tube with methanol. Later this week I will fix more.