55 
1944] Three Species of Coleosoma from Florida 
margins; abdomen more than twice as long as wide, constricted 
posterior to middle, but constriction not as deep as in C. flavipes 
and divisions not as globose, anterior portion largest, pale 
brown, with lateral dark stripes which end before the constric- 
tion, a pair of irregular cream-color blotches on posterior slopes, 
constriction pale, posterior portion black with no markings, at 
the base, a thin, chitinized plate or sheath that extends in two 
blunt points over cephalothorax and extends on venter to fold 
which is posterior to middle, venter pale; legs much broken, 
1-4-2-3, pale, a dark line on posterior femora, tip of IV tibia 
and base of IV metatarsus dark, I pair about one and a half 
times length of spider, no spines, but lines of long hairs; palpus 
not as long as cephalothorax, pale, embolus much shorter than 
in C. flavipes , embolus starts from near base and completes 
about half a circle, the dark piece at tip quite narrow, extends 
beyond the cavity, below a larger pale piece also extends be- 
yond the cavity. 
Female. Length, 1.8 mm. 
Cephalothorax and eyes same as in male; abdomen cylin- 
drical, three-quarters as wide as long, overlapping cephalo- 
thorax, but with no chitinized plate as in male, two widely sep- 
arated, parallel dark stripes broken about middle, with paired 
white flecks in area between, pale flecks on sides; legs , 1—2— 4— 3, 
pale, with a dark ring at distal end of tibiae and distal end of 
IV femur, rows of bristles on all joints and a long dorsal bristle 
on tibiae; epigynum , a broad median septum with large open- 
ings each side. 
Holotype 2 3 Florida; Punta Gorda, (Mrs. Slosson), Banks 
Coll. 
Allotype 2 pullus, Florida; Miami, February-March 1903, 
(Comstock), Banks Coll. 
3$s 12 Florida; Fort Myers, February 1930, Barrows 
Coll. 
$ s 2 s Cuba; Havana, Banks Coll.; Soledad, July- August, 
1931, (Banks and Worley) 
1$ 2 s Galapagos Islands; Floreana, 12-14 November, 
(Norge Exped.) 
The male of Coleosoma floridanum is easily separated from 
the other two species of the genus, as the embolus completes 
about half a circle instead of almost a complete circle. The 
