Entwickelung des Spinnapparates bei Trochosa singor. Laxm. 71 
60) W. M, Wuzeter, Uber driisenartige Gebilde im ersten Abdominal- 
segment der Hemipteren-Embryonen, Zool. Anz, 1889. 
61) —- Homologues in Embryo Hemiptera of the appendages of the 
first abd. segment of other insects embryos. Americ. Naturalist, 
1889. 
62) — On the appendages of the first abdominalsegment of embryo 
insects. Transact. Wisc, Ac, of sciences, Vol. VIII, 1890. 
