38 BROOKLYN MUSEUM SCIENCE BULLETIN 3- 2. 
tarsi in o^eneral more numerous at distal end above than elsewhere on 
these joints. Length. 13. 5 mm. 
Locality. — Peru: Chincha Is. One Female taken Oct. 26, 1919 in a 
building of the Guano Administration. Type. Museum of Comparative 
Zoology. 519. 
AKANEIDA. 
DYSDERIDAE. 
DVSDERA MURPHYI. Sp. nOV. 
Carai>ace from fuliginous, with median region clearer brown, to chest- 
nut along middle and mahogany laterally. Sternum fulvous, brown 
about borders. Legs from light brown to fuliginous. Abdomen grey, 
typically darker at base above. Eyes large, the laterals subequal and a 
little larger than the medians, the ratio of diameters being nearly as 6:5. 
Median e\es with the i^osterior laterals forming a slightl\- procurved row. 
Medians nearly contiguous, once and a half their diameter from the later- 
als. Clypeus obviou.sly higher than the diameter of an anterior eye. 
Sternum long, posterior end angular, a little obtuse, not produced be- 
tween coxae. Tibia I beneath with 4-4 spines; in front and also below 
with four short spines in a single series. Metatarsus I with 7-6 to 6-4 
spines beneath. Femur I armed abo\-e at distal end with two spines, one 
long one on anterior .side and a short one on ]>osterior. Patella I unarm- 
ed. Tibia II with 4-4 spines beneath, three spines on anterior and 
none on the posterior. Metatarsus II with 6-7 spines beneath, those 
of the first and third pairs much longer than the others. Femur II 
armed as I. Patella unarmed. Tibia III with three spines beneath 
in one series. Metatarsus III with three spines beneath, two on 
anterior side, and one on po.sterior. Femur III with s]nne on anterior 
side at di.stal end above, none on posterior. Metatarsus IV armed at 
distal end beneath; the leg otherwise unarmed. 
Length, 12 mm. Length of cephalothorax, 3.5 mm. Length of tib. 
-\- ])at. I. 4.5 mm.: of tib. -- pat. IV, 4.4 mm. 
Locality. — Peru: Chincha Is. , R. C. Murph\-. Six females were collect- 
ed Oct. 12, 1919. Type, Mu-seum of Conijiarative Zoology, 521; para- 
type, Brooklyn Museum. 
Dr. Mur])hy notes that specimens of this spider, or related forms, are 
abundant on nearlv all the Peruvian islands, where they make silk-lined 
