Thanks for AW's work ["Zur Naturgeschichte der Daphniden", Z. Wiss. Zool. 27: 51–112; 28: 93–254; 30 (suppl.): 123–65; 33: 55–270]. CD always interested in adaptations which appear to owe their structure to other causes.
Has not heard from Raphael Meldola for a long time about translation of AW's Studien.