MEMOIRS OF THE NATIONAL ACADEMY OF SCIENCES. 
153 
Fig. 2. Chelicer of an example marked from Mammoth Cave; 2a, hand of the same, enlarged; 26, pedipalp of 
the same ; 2c, two terminal joints of the same. 
Fig. 3. Phalangodes robusta Pack.—Chelicer; 3a, hand of the same; 36, pedipalp of the same. 
Fig. 1. Drawn by J. H. Emerton ; the remainder by the author. 
Note. —In reproducing the more delicate and slender appendages, such as the legs, the lithographer, in 
tracing the sketches, has made them somewhat thicker and clumsier than in the original drawings. 
This will also apply to the antennae on Plates VI to IX, etc. 
Plate XIII. 
Fig. 1. Phalangodes armata (Tellkf.), male, from the Labyrinth, Mammoth Cave.—16, chelicer; 16', the hand of 
the same; lc, a pedipalp, $; Id, a leg of the second pair, 18 mm long; le, le', one of the third (?) pair of 
legs; If, tarsus of one of the fourth pair of feet; 1 g, penis (the shaded portions should have been left 
clear) ; lit, ovipositor, 1.5 mm long. 
Fig. 2. Phalangodes spinifera Pack., from Florida.—Chelicer; 2a, a pedipalp ; 26, a leg of the first pair, 4.5 mm long 
2c, a leg of the second pair, 9 m,n long. 
Fig. 1 drawn by J. H. Emerton ; Figs. 16 to 2c drawn by the author with the camera. 
Plate XIV. 
Fig. 1. Phalangodes, sp. x2 times.—The cave ir inhabits and the species not determined. Emerton del. 
Fig. 2. Phalangodes robusta Pack.—One of the second pair of legs, 2; 2a, basal joint; 26, tarsal joints. 
Fig. 3. Nemastoma troglodytes Pack.—A chelicer; 3a, a pedipalp; 3a', its basal joint; 36, 36', one of the second pair 
of legs. 
Fig. 4. Nemastoma inops Pack.—A chelicer; 4a, pedipalp; 46, a leg of the second pair; 4c, 4c', a leg of the fourth 
pair. 
Fig. 5. Phlegmaeera cavicolens Pack., x3, (Emerton del.)—5a, 56, 5c, chelicer; 5d, pedipalp; 5e, leg of the second 
pair; 5/, nine terminal joints of the same; 5 g, leg of first or third pair. 
All the figures, except 5, drawn by the author. 
Plate XV. 
Fig. 1. Anthrobia mammouthia, 2 ■ 
Fig. 2. Anthrobia mammouthia, 2 > under side. 
Fig. 2. Anthrobia mammouthia, palpus of $. 
Fig. 4. Anthrobia mammouthia. 2 > side view. 
Fig. 5. Anthrobia mammouthia, front of head and mandibles. 
Fig. 6. Anthrobia mammouthia, foot of first pair. 
Fig. 7. Linyphia weyeri, $. 
Fig. 8. Linyphia weyeri, maxillae and mandibles of £. 
Figs. 9,10. Linyphia weyeri, palpus of $ 
Fig. 11. Linyphia weyeri, epigynum. 
Fig. 12. Linyphia weyeri, foot. 
Fig. 13. Linyphia ineerta, $. 
Fig. 14. Linyphia ineerta, 2 maxillae. 
Figs. 15,16. Linyphia ineerta, palpus of $. 
Fig. 17. Linyphia ineerta, epigynum. 
Fig. 18. Linyphia ineerta, eyes of 2 , from Fountain Cave. 
Fig. 19. Linyphia ineerta, foot. 
Fig. 20. Linyphia ineerta, $ , side view. 
Fig. 21. Linyphia ineerta, $, front of head and mandibles. 
Fig. 22. Nesticus pallidas, 2- 
Fig. 23. Nesticus palUdus, 2 , under side. 
Fig, 24. Nesticus pallidas, 2, side view. 
Fig. 25. Nesticus pallidus, 2 , foot. 
Fig. 26. Nesticus pallidus, palpns of $. 
Fig. 27. Nesticus pallidus, epigynum. 
Fig. 28. Nesticus carteri, 2 , epigynum. 
Fig. 29. Linyphia subterranea, 2, under side. 
Fig. 30. Linyphia subterranea, 2 , front of head and mandibles. 
Fig. 31. Linyphia subterranea, 2, side view. Figs. 1—31 drawn by J. H. Emerton. 
Fig. 32. Willibaldia cavernicola Keys.; 32a, head from in front; 326, epigynum. Marx del. 
Fig. 33. Erigone infernalis Keys.; 33a, head; 336, epigynum. Marx del. 
