768 REV. O. P. CAMBRIDGE ON [Julie 18, 



Koch, by whom it was captured in the Tyrolese Alps, at an elevation 

 of 6000 feet. 



LIST OF SPECIES, WITH REFERENCES TO PAGE, PLATE, AND 



LOCALITY. 



Erigone arietans, p. 748, Plate LXV. fig. 1. Nuremberg. 



incomta, p. 748, Plate LXV. fig. 2. Nuremberg. 



forensis, p. 749, Plate LXV. fig. 3. Some. 



prominula, p. 750, Plate LXV. fig. 4. Nuremberg and England. 



inconspicua, p. 751, Plate LXV. fig. 5. Nuremberg. 



romana, p. 752, Plate LXV. fig. 6. Rome. 



sila, p. 753, Plate LXV. fig. 7. Nuremberg. 



fallens, p. 753, Plate LXV. fig. 8. Nuremberg. 



biscissa, p. 754, Plate LXV. fig. 9. Bayreuth (Bavaria). 



grceca, p. 755, Plate LXV. fig. 10. Corfu. 



alexandrine, p. 755, Plate LXV. fig. 11. Alexandria (Egypt). . 



simonii, p. 756, Plate LXV. fig. 12. Paris and Nuremberg. 



sarcinata, p. 757, Plate LXV. fig. 13. Nuremberg. 



digitata, p. 758, Plate LXVI. fig. 14. Nuremberg. 



kochii, p. 759, Plate LXVI. fig. 15. Nuremberg and Warsaw. 



inonodon, p. 759, Plate LXVI. fig. 16. Nuremberg. 



— — scurrilh, p. 760, Plate LXVI. fig. 17. Nuremberg. 



similis, p. 761, Plate LXVI. fig. 18. Nuremberg. 



prcegracilis, p. 762, Plate LXVI. fig. 19. Nuremberg. 



saltttensis, p. 763, Plate LXVI. fig. 20. Nuremberg. 



cito, p. 764, Plate LXVI. fig. 21. Nuremberg. 



blockivallii, p. 765, Plate LXVI. fig. 22. Nuremberg. 



elegans, p. 766, Plate LXVI. fig. 23. Nuremberg. 



alpina, p. 767, Plate LXVI. fig. 24. Bruck-am-Muir, Styria, and the Tyrol. 



EXPLANATION OF THE PLATES. 



Plate LXV. 



Fig. 1 . Erigone arietans. 



a, cephalothorax, in profile ; b, left palpus, from inner side. 



2. Erigone incomta. 



a, cephalothorax, in profile ; b, cepbalotliorax and falces, from the 

 front ; c, d, left palpus in two positions. 



3. Erigone forensis. 



a, cepbalotliorax and abdomen, in profile ; b, ditto, from tbe front ; c, 

 abdomen ( £ ), in profile ; d, genital aperture ( $ ) ; e, left palpus 

 ( $ ), from outer side ; /, radial and cubital joints of rigbt palpus ( $ ). 



4. Erigone prominula. 



a, cepbalothorax, in profile; b, eyes, from tbe front ; c, d, e, portions of 

 palpi in different positions. 



5. Erigone inconspicua. 



a, abdomen, in profile; b, ditto, from the front; c, d, left palpus in 

 two positions. 



6. Erigone romana. 



a, cepbalothorax and abdomen ( $ ), in profile ; b, abdomen ( <j> ), in 

 profile ; c, genital aperture ( ? ) ; d, left palpus ( g ), from outer side. 



7. Erigone sila. 



a, cephalothorax and abdomen ; b, caput, from above and behind ; d, 

 ditto, from the front ; c, f left palpus in two positions ; c, portion of 

 right palpus, in profile. 



8. Erigone pollens. 



a, cephalothorax and abdomen, in profile ; b, caput, from the front ; c, 

 right palpus, from outer side ; d, portion of left palpus, in profile. 



