PLATE XXI, 



Pig. 1. Epeira riparia, d\ and palpus of d*. 



" 2. " fasciata, d", and palpus of d". 



" 3. " insularis, palpus of d". 



" 3a. " " terminal joint of palpal organ, 



x gj ii it ii it ii ii 



" 4. " vulgaris, palpus of d". 



" 5. " displicata, palpus of a*. 



" 6. " gibberosa, palpus of d\ 



" 7. " caudata, palpal organ. 



" 8. " spinea, d\ and palpus of c?. 



" 9. Linvphia communis, palpus of d*. 



" 10. " marmorata, palpus ot d*. 



" 11. " costata, palpus of d". 



" 12. Theridion vulgare, palpus of d*. 



" 13. " boreale, palpus of d". 



" 14. " trigonum, d", and palpus of d". 



" 15. Linvphia autumnalis, palpus of d". 



" 16. Theridion marmoratum, palpus of d*. 



" 17. " sphferula, palpus of d". 



" 17a. " " " " 



" 18. Pholcus atlantieus, palpus of d". 



