-ARACHNIDA.—ARANEIDEA. 
Vou. II. 
PLATE XVI. 
. Sidusa festiva, 8, left palpus from beneath; 1a, ditto from above; 1 4, ditto from the 
inner side; 1c, mandible from beneath; 1d, sternum; 1 e, maxillz and labium. 
. Sidusa festiva, 3, leg i. from the outside; 2a, ditto from the inner side ; 20, eyes from 
above ; 2c, ditto from in front ; 2d, carapace and eyes in profile; 2e, vulva; 2/f, ditto, 
immature example. 
3. Sidusa inermis, 3, left palpus from beneath; 3a, ditto from the inner side; 3, mandible 
from beneath; 3c, maxille and labium. 
4, Sidusa inernis, 2? , carapace and eyes in profile; 4a, vulva. 
5. Sidusa penicillata, 8, tibia and tarsus of palpus from the inner side; 5a, ditto from the 
outer side ; 5 6, mandible from beneath. 
6. Sidusa penicillata, 2 : 6a, vulva; 6 4, ditto, immature form ; 6 c, mandible from beneath. 
7. Sidusa vittata, 2 : 7 a, vulva; 76, ditto, variety. 
8. Sidusa nigrina, 2 : 8a, vulva; 8 4, ditto, variety ; 8c, ditto, immature form. 
9. Sidusa albida, 3 , vulva. 
10. Sidusa cristata, : 10a, right palpus from beneath; 106, ditto from the outside; 
10 c, leg i. from the inner side. 
1l. Sidusa spirorbis, 6: lla, right palpus from below; 114, ditto from above; 1l1c, leg i. 
from the inner side; 11d, ditto from above, (a) shows the fringe on the tarsus ; 
11 e, leg iv. from above. 
12. Sidusa nigriventer, § : 12a, ventral area of abdomen; 1246, right palpus from beneath ; 
12, ditto from the outside; 12 d, left mandible from beneath. 
13. Sidusa nigriventer, ¢ , vulva. 
14. Sidusa murcida, 2 : 144, vulva. 
The small letters, unless otherwise stated, refer to similar portions of structure. 
