chamberlin: the arachnida. 295 



with three narrow Hnes of white extending from sides a short distance 

 mesad on the dorsum on each side at and caudad of the middle; 

 venter brown. 



Ocular quadrangle much wider than long and wider behind than 

 in front in the usual way. Second eyes minute and well in front of 

 the middle. Eyes of first row about as in the preceding species. 



Chclicerae long and slender; the claw slender and as long as the 

 chelicera, with a double curve; tooth of lower margin bent conspicu- 

 ously toward distal end of chelicera, (Plate 25, fig. 8).' 



Tibia I with two pairs of ventral spines toward distal end and a 

 single ventral spine toward ectal side well toward base of joint. Meta- 

 tarsus I with two pairs of ventral spines, one distal and one at middle. 



Length, 5.1 mm.; length of cephalothorax, 2.5 mm., width, 1.9 mm. 



Localities.— Santa Ana, 3,000 feet, August. (Type, M. C. Z. 298, 

 male; paratype, M. C. Z. 299, one inale). San Miguel, 6,000 feet, 

 July. (M. C. Z. 331, one male). Paltaybamba, 5,000 feet, August. 

 (M. C. Z. 300, one male) Huadquina. 5,000 feet, July. (M. C. Z. 

 301, an immature female). 



Dendryphantes amphibolus,^ sp. nov. 

 Plate 25, fig.' 9. 



Carapace with integument reddish black, clothed over whole surface 

 with white scales of greenish lustre. Sternum and labium brownish 

 black, the endites a paler brown. Legs yellowish or pale testaceous, 

 the femora, patellae, tibiae, and metatarsi typically dark at. tips, at 

 least ventrally, but the annuli may be clearly evident only on the 

 posterior pairs. Abdomen above with several pairs of large brown 

 spots the most anterior of which are confluent across anterior end and 

 with less distinct chevron-lines between caudal ends of others ; in the 

 elongate yellowish grey area between anterior pairs of spots is a longi- 

 tudinal brown line or mark bisecting the same; the hair across the 

 anterior face and bordering the brown spots is white; venter dilute 

 yellowish grey, with or without three longitudinal brown lines on the 

 caudal portion. Spinnerets narrowly enclosed at base with brown. 



Tibia I (female) with two pairs of short spines toward the distal 

 end and one ventral spine on the ectal or caudal side toward the base ; 

 metatarsus I with two pairs of spines, one distal and one mesal. 



• ait4>lffo\os, ambiguous. 



