1988] 
Sierwald — Thalassius spinosissmus 
249 
Fig. 3-4. Copulation of T. spinosissimus. (3) Male positions his palp in front of 
the female epigynum. Arrow indicates threads of the mating-web. (4) Expansion of 
the male bulb in front the epigynum. Body length of spiders approximately 15 mm. 
