PETRUKEVITCH, AMERICAN SPIDERS 
219 
Spines on legs: First leg .— Femur, EPS, 3 rows of 3 spines each and 1 additional 
distal spine, PRS, 1 distal spine; patella, PRS, 1 spine, RES, 1 spine; tibia, EPS, 
1 row of 3 spines, HYS, 2 rows of 5 spines each, PRS, 2 spines, RES, 2 spines; 
metatarsus, EPS, 1 row of 3 spines, HYS, 2 rows of 2 spines each, PRS, 1 row of 3 
spines, RES, 1 row of 3 spines. Second leg .— Femur, EPS, 3 rows of 3 spines each 
and 1 additional distal spine, PRS, 1 distal spine; patella, PRS, 1 spine, RES, 1 
spine; tibia, EPS, 1 row of 3 spines, HYS, 2 rows of 5 spines each, RES, 2 spines; 
metatarsus, HYS, 2 rows of 2 spines each, PRS, 2 spines, RES, 2 spines. Third leg .— 
Femur, EPS, 3 rows of 3 spines each and 2 additional spines, one of these is proximal, 
the other distal; patella, PRS, 1 spine, RES, 1 spine; tibia, EPS, 1 row of 3 spines, 
HYS, 2 rows of 2 spines each, PRS, 2 spines, RES, 2 spines; metatarsus, EPS, 
2 spines, PRS, 2 spines, RES, 2 spines; tarsus; verticel of 6 spines. Fourth leg.— 
Femur, EPS, 3 rows of 3 spines each and 2 additional spines, one of these distal, the 
other proximal; patella, PRS, 1 spine, RES, 1 spine; tibia, EPS, 1 row of 3 spines, 
HYS, 2 rows of 3 spines each, PRS, 2 spines, RES, 2 spines; metatarsus, HYS, 2 
rows of 3 spines each, PRS, 1 row of 3 spines, RES, 1 row of 3 spines; tarsus, verticel- 
lum of 6 spines. Palpus. Femur, EPS, 1 row of 3 spines and 4 additional spines at 
distal end; tibia, PRS, 2 spines, RES, 1 spine. 
Color in life: Males and females of same color; cephalothorax brown -with a 
lighter median band as broad as eye area; face and clypeus light brown; legs uni¬ 
form brown; sternum with 3 pairs of dark spots; abdomen gray with 2 dark spots 
above in front and a median dark band underneath. 
Patria: Jamaica, W. I. 
I found many mature and young males and females at Malvern, Jamaica, 
W. I., in April and May, 1905. They live under rocks, where the females 
guard their large flat cocoons. The moment one sees the hand of the col¬ 
lector approaching, she falls on her back, spreading wide her legs and 
opening the mandibles. In this curious manner she evidently tries to de¬ 
fend herself from the attacking enemy, the position being of great advan¬ 
tage. At least, on approach of the forceps she grabs them at once with all 
her eight legs and bites fiercely into them. Whether this species is poisonous, 
I could not ascertain. 
Collection: A. Petrunkevitch. 
PISAURIDdE. 
27. Dolomedes triton Walckenaer (sub Lycosa), Ins. Apt., vol. i, p. 340. 
1837. 
= Dolomedes sexpunctatus Hentz et auctorum. 
That the two names are synonyms can scarcely be doubted. The de¬ 
scription given by Walckenaer corresponds exactly with the specimens 
which I have collected in New Jersey and other States. Walckenaer places 
his D. triton in the second family, i. e. Piraticse, of which he writes on page 
