240 BULLETIN: MUSEUM OF COMPARATIVE ZOOLOGY. 
Posterior row of eyes recurved as usual; median eyes near two 
and two fifths their diameter apart and about the same distance from 
the laterals. Lateral eyes their diameter apart, their tubercles in 
contact at base. Anterior row of eyes slightly procurved; median 
eyes once and a half their diameter apart, twice their diameter from 
the laterals. Area of median eyes much wider behind than in front 
(ratio 5:4). 
Upper margin of furrow of chelicera with six (or five) teeth of which 
the one nearest the claw is much the largest; this separated from the 
second by a wide space, the second, third, and fourth about equal in 
size and spacing, the two most proximal smaller. Lower margin with 
four teeth equally spaced but with the first considerably largest as 
in the upper row, (Plate 18, fig. 1). 
Legs with the spines of the distal joints long, slender, and sub- 
appressed, clearly longer than in the succeeding species, 7’. quechua. 
Female. Length 7.7mm. Length of cephalothorax 2 mm.; width 
1.6 mm. 
fem. tib.+pat. met. tar. total 
Leg I 4.9mm. 5.1mm. 4.2mm. 1.2mm. 15.4mm. 
Leg Il 3) 4% 3.3 3.8 1 11.3 
WesilUl | 17 bz 1.2 6 5.2 
Leg IV 3351! 3 202 1 9.3 
Tibia I, 4.2mm. Tibia IV, 2.3 mm. 
Locality Conservidayo River, August. (Type, M. C. Z. 203, 
female; paratypes, M. C. Z. 204, numerous specimens, chiefly imma- 
ture males and females). 
TETRAGNATHA QUECHUA,! sp. nov. 
Plate 18, fig. 4. 
Carapace and chelicerae light brownish yellow. Sternum somewhat 
dusky yellow. Legs yellow, femora, and tibiae darker at the distal 
ends but legs not truly annulate. Abdomen above silvery white in 
numerous spots separated by a close network of fine grey lines; a 
median longitudinal grey line throughout length, this widest at the 
anterior end and giving off a principal pair of branches in a caudo- 
1 The Quechuas are the indigenous people of Peru and Ecuador. 
