Dec, 1914] Petrunkevitch : Attid^ of Yale Expedition. 331 



than long, very slightly narrower behind than in front. Cephalic part much 

 ■shorter than thoracic. Copulatory apparatus as figured. Pedipalp covered 

 with black hair except patella which is white with iridescent scales and hair. 

 General color in alcohol almost black with green and red iridescence. Around 

 the eyes long black hair and white iridescent scales. A marginal band of 

 white scales on each side of cephalothorax. Abdomen with two iridescent 

 spots. 



Female. — Total length 7.0. Spines on legs as in male, but lateral spines 

 on outside of first tibia lacking. No black brushes on legs. General appear- 

 ance in alcohol considerably lighter than that of the male. Abdomen with 

 lateral iridescent white bands, with two pairs of black spots on back and a 

 pair of white iridescent spots between them. Epigynum as figured. 



Explanation of Plate XII. 



•Commoris enoplognatha Simon. 



1. Chelae of male. 



2. Palpus of male from below. 



3. Palpus of male from above. 



Sidusa doniinicana n. sp. 



4. Dorsal view of female. 



5. Epigynum. 



Hasarhis peckhami n. sp. 



6. Dorsal view of male. 



7. Chelre of male. 



8. Side view of male palpus. 



9. Palpus of male from below. 



Wala footei (Peckh. in litt.) n. sp. 



10. Dorsal view of male. 



1 1. Lip, maxillae and chelae of male. 



12. Palpus of male from below. 



13. Dorsal view of female. 



14. Epigynum. 



Corythalia peckhami n. sp. 



15. Dorsal view of male. 



16. Palpus of male, side view. 



17. Palpus of male from below. 



18. Dorsal view of female. 



19. Chelas of female. 

 .20. Epigynum. 



