192 Hentz’s Descriptions of the 
cinereous ; trophi and first joints of feet pale testaceous under- 
neath; thighs unspotted apple green, the other joints gradually 
deeper towards the tip. 
Observations. This species dwells on ponds, and dives 
with great agility, hiding itself under floating leaves or rubbish 
when pursued. 
Habitat. North Carolina. 
Genus Micrommara. Latr. (Sparassus, Walck.) 
Characters. Cheliceres moderately strong ; mazille par * 
allel, rounded at the extremity ; lip short, rounded, wider 
near the base ; eyes eight, subequal, in two rows, the upper 
one longest, A from the base towards the lower row ; 
feet long, slender, second pair longest, then the first and 
fourth, the third being the shortest. 
~ Habits. Araneides making no web for dwelling, but wan- 
dering and casting some irregular threads to arrest their prey ; 
making a tent among leaves for the protection of the cocoon 
and the rearing of the young. 
ks. I could not adopt the two families of Walck- 
enaer, because the eyes, when large, are unequal; this shows 
the great affinity between Micrommara and DorowEDES. My 
first tribe, the Arcuats, approaches very closely to that sub- 
genus, particularly Mickommata undata. 
Tribe I. Anrcuatx. Lower row of eyes straight, middle 
eyes of the upper row larger, or borne on tubercles. 
Tribe Il. BrancvaTz. Upper per and lower rows of eyes 
bent and opposed, the lower „being bent dece the base, 
eyes equal or subequal. 
(Arcuatæ.) 1, MICROMMATA UNDATA. 
_ Plate XVI. Fight. - 
` "estaceous or yellowish ; oan 
