1896.] SPIDERS FROM THE LOWER AMAZONS, 751 
clothed with hairs. Bulb short, pyriform ; stylumslender, sinuous. 
The whole length of bulb and stylum one-eighth less than that 
of tibia. 
Legs i., iv., ii., iii. Coxa, trochanter, and femur finely granulate ; 
the latter without spines below, two or three above. Patella i. 
with six or eight spines beneath ; tibia i. with two series of 5—5 
beneath, and two or three spines on either side; bearing at its 
apex beneath a stout, sharp, conical spur, directed forwards and 
outwards, not bifid. Protarsus furnished with two spines beneath 
and a pair at the apex; strongly curved at base, the apical angle 
of curved portion bearing a short, very stout, conical spur. ‘Tarsii., 
ii., iii., iv., furnished on underside with scopuliform hairs; pro- 
tarsi i. and ii. slightly so on either side at apex; ili. and iv. not 
scopulate. Tibize and protarsi ii., iii., and iv. spinose beneath ; 
tibia iii. with one or two spines also on the upperside. 
Tarsal claws i., ii., Ui., iv. three-clawed; superiors with a 
double row of 6-8 denticles. 
Spinners four ; posteriors three-jointed, one fourth the length 
of abdomen. Basal joint longer than the middle, equal in length 
to the terminal. Anterior spinners half the length of the basal 
joint, twice their diameter apart at base. 
Comparative measurements in millimetres.— 3. Carap. 6°5 long., 
5°5 lat. Abd. 6 long., 3°5 lat. Cephl. area 4 long. Sternum 
3°5 long., 2°5 lat. Coxa of pedipalp 2°5 long., 1:25 lat. Pedes, 
long. i. 23—ii. 20—iii. 17—iv. 22. Artl. i. long. 3—1—5—3 
4—4:25—2°5, Art). iv. long. 2—1—5:5—2—45—45—2. 
Postr. mam. 3°5 long. Artl. 1:25—1—1—1-25. Antr. mam. 
‘75 long., 1 apart at base. Mandib.3long. Large male 13 long. ; 
small male 10 long. 
9 .—Colour. Carapace and base of mandibles dark pitch-brown; 
the former clothed with converging lines of golden hairs; base of 
latter with a dorsal band, and two narrow, external, lateral bands 
of fine golden hairs, and a few interspersed amongst the intervening 
black hairs. Abdomen clothed with a dense coat of deep chocolate- 
brown hairs, having also a dorsal clothing of golden hairs, 
extending to and spreading laterally towards the spinners, 
Ventral surface rich chocolate-brown. 
Carapace longer than broad; central. fovea deep, recurved ; 
cephalic area rather more than half the length of carapace. 
Abdomen longer than carapace. Spinners: posterior pair a little 
over one third as long as abdomen ; basal joint longest ; apical half 
as long again as middle joint. Anterior pair half the length of 
basal joint of posterior pair, twice their diameter apart. 
Ocular tumulus twice as long as broad. Central eyes largest, 
proportionally the same as in the male, but further apart. 
Anterior centrals nearly half a diameter from posterior centrals : 
same distance from anterior laterals. Posterior centrals and 
laterals almost in contact ; the latter nearly their axis distant from 
anterior laterals.. Anterior centrals circular, the rest ellipsoidal. 
Mandibles scarcely as long as cephalic area. Fang-groove with 
