Fig. 1. 
ARACHNIDA.—ARANEIDEA. 
Vou. IL. 
PLATE XILL 
Tetragnatha tenuis, 8, tarsus of palpus; 1 a, ditto from the other side; 1 4, mandible ; 
lc, ditto from beneath. 
. Tetragnatha tenuis, 2? , mandible, upperside. 
. Tetragnatha cognata, 3, tarsus of palpus; 3a, ditto from the other side ; 3, mandible, 
underside; 3c, ditto, upperside. 
. Tetragnatha cognata, ? , mandible, underside. 
. Tetragnatha antillana, , 3 tarsus of palpus, showing :—0., bulb ; cy., cymbium; ¢s., tarsal 
sheath ; ¢., tuba or basal portion of embolus; e., embolus; cd., conductor. 5a, ditto 
from the other side; 56, mandible, upperside, showing dorsal spur at a; 5, ditto, 
underside. 
Tetragnatha antillana, ? , mandible, upperside ; 6 a, ditto, underside. 
Tetragnatha bidens, 3, tarsus of palpus; 7a, ditto from the other side; 76, mandible, 
upperside ; 7 c, ditto, underside. 
. Tetragnatha mexicana, 3, tarsus of palpus; 8 a, ditto from the other side; 84, cymbium 
of ditto ; 8c, mandible, upperside ; 8d, ditto, underside. 
Tetragnatha mexicana, ?, mandible, underside. 
Tetragnatha gracilis, ¢, tarsus of palpus; 10a, ditto, conductor and embolus; 10 4, 
mandible, upperside. 
. Tetragnatha gracilis, 2 , mandible, upperside. 
Tetragnatha pallida, 3, tarsus of palpus; 12 a, ditto from the other side; 12 6, mandible, 
upperside. 
. Tetragnatha pallida, ° , mandible, underside. 
Tetragnatha digitata, 8 *, tarsus of palpus; 14 a, ditto from the other side; 14 6, mandible, 
upperside. 
. Plesiometa argyra, 3, tarsus of palpus ; 15a, ditto from the other side, showing at 6 the 
bulb, at e the embolus, at x the spur on the tarsal sheath, at zz the spine at the 
base of the embolus; 154, spine at the base of the embolus, enlarged; 15 c, emboius, 
enlarged. 
Plesiometa argyra, ?, vulva, beneath; 16 a, ditto, viewed in profile. 
. Leucauge mandibulata, g, tarsus of palpus, showing the conductor at ¢, the embolus 
at e; 17a, tibia and tarsus of palpus; 17, mandible in profile ; 17 c, tarsus of palpus, 
showing apophysis of tarsal sheath at x. 
. Leucauge mandibulata, ? , vulva. 
Leucauge longipes, 3, tarsus of palpus ; 19a, tibia and tarsus of palpus; 19 4, mandible in 
profile. 
* Wrongly marked ¢ on the Plate. 
The small letters, unless otherwise stated, refer to similar portions of structure. 
