from the Lower Amazons d;c. 83 



Legs. Spinous armature similar to others of the group. 

 Tibise i. and ii. with five pairs of spines beneath. Anterior 

 protarsi with three pairs of spines beneath. Protarsi and 

 tarsi i. and ii. clothed beneath with very slight scopula, iii. 

 and iv. tarsi only. Tarsal claws 2, armed beneath with four 

 long broad denticules ; claw-tuft present. 



Vulva (PI. III. fig. iv. b). 



Measurements in millim. — Tot. len. 14, carap. 6"75 ; legs 

 i. 20, iv. 25; pat. + tib. i. 7, iv. 7, iii. 5. 



Two adult females of this richly coloured species were 

 taken by myself in the Forest of Santarem in Feb. 1896. 



Gtenus minor^ sp. n., $ . 



Hah. Forest, Santarem. 



Type in coll. Brit. Mus. Nat. Hist. London, 1893. 



Total length (including mandibles) 11 mm. 



Colour. Carapace pale brown, with central band of golden- 

 yellow pubescence. Abdomen dark olive-brown, with 

 numerous scattered groups of pale golden-yellow hairs ; with 

 a short basal central band and three or four transverse bars 

 of pale pubescence; sides with three oblique lines of spots of 

 golden-yellow hairs. Ventral surface paler, with numerous 

 longitudinal indistinct lines of pale hairs. Legs pale brown, 

 with numerous isolated short pale hairs and spots of hair. 



Structure similar to that of albofasciatus. Vulva (PI. III. 

 fig. iv. c). 



Measurements in millim. — Tot. len. 11, carap. 5; legs i. 

 15*5, iv. 19'5; pat. + tib. i. 5*5, iv. 5"5, iii. 4*25. 



A single adult female of this small species was taken by 

 myself in the Forest of Santarem, Feb. 1896. 



Ctenus similis, sp. n., 2 . 



ITab. Forest, Santarem. 



Type in coll. Brit. Mus. Nat. Hist. London. 



Total length (including mandibles) 12 mm. 



This form is almost identical witii C. albofasciatus except 

 in being smaller, in not having the carapace raised behind, 

 in having the second row of eyes procurved instead of straight, 

 and in possessing a very different form of vulva (PI. 111. 

 fig. iv. a). 



Measurements in millim. — Tot. len. 12, carap. 7j legs i. 

 20-5, iv. 24; pat.-f-tib. i. 7, iv. 7, iii. 5-2,0. 



A single specimen from the Forest, Santarem, Feb. 1896. 



