26 NEW YORK STATE MUSEUM 
brosus; but in this case, the species of Koch and Walckenaer 
must be disregarded, even if recognizable, for they were assumed 
to be identical with the indeterminable species of De Geer. 
Habits. The low river and coastal swamps of the southeast are 
the localities in which the greatest numbers occur. The neutral 
ash-gray color of the living spiders and their habit of resting motion- 
less and head downward on the trunks of cypress and tupelo gums, 
render them almost invisible. When disturbed, they rush into the 
water or dodge with surprising quickness to the opposite side of 
the tree, after the manner of a squirrel. The typical habitat of the 
species is shown in the accompanying plate (pl. 15). Females with 
ege sacs were found in July at Spring creek and in the Okefinokee 
swamp, Georgia. 
Distribution. Auburn, *Mobile, *Wiluski Shoals, Shelby county, 
*ipes, Sumter county, *Silas, Choctaw county, Ala.; “Honey Island 
Prairie, *Floyd’s island, *Billy’s island, Okefinokee swamp; *Spring ° 
creek, Decator county, Ga.; *Biloxi, Miss.; Altoona, *Arkadelphia, 
Ark. 
Dolomedes urinator Hentz 
Bost. Jour. Nat. Hist., 1845, 5:1900, pl. 16, fig. 3 
Type: Dolomedes urinator Hentz; type specimen not known to 
lane locality: “ North Carolina, Alabama.” 
Female (alcohol): length, 20-28mm; average of seven mature specimens, 
23.7mm; legs 4-2-1-3, 55-50-40-45mm; pl. 16; pl. 33, fig. 3 
Cephalothorax above deep reddish brown, clothed with short, dark 
brown hair; extreme margin black; radial grooves darker, narrow 
above, expanding somewhat on the sides; in front of the dorsal 
groove, a pair of small, black, wedge-shaped marks, their apices 
directed backward; eye region black. yes: anterior row slightly 
recurved, median a little larger than lateral and closer to them than 
to each other; posterior row strongly recurved, eyes equal in size 
or nearly so, almost twice the diameter of anterior median; pos- 
terior median separated by less than the diameter of one of them, 
considerably more than their diameter from the lateral. Width of 
clypeus 4 to 5 times the diameter of an anterior median eye. Chelt- 
cera deep reddish brown to black, clothed with long hairs. Abdo- 
men above and on sides, dark reddish brown with a dense covering 
of short, brown hairs; on basal third above, a lighter, median, lanceo- 
late mark (sometimes absent) ; on posterior part four or five pairs 
of small, white spots surrounded by a narrow line of black (indis- 
tinct in alcohol), each pair connected by a short, recurved, black 
bar; venter of abdomen in some specimens, with a band somewhat 
