44 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 125 
Description.—Female cephalothorax (fig. 19b) ovoid, consisting 
of cephalon and first 4 thoracic segments. Frontal region approximately 
one-eleventh the total length of cephalothorax, anterior surface 
bilobed, with membranous margin; division between frontal region 
and remaining cephalothorax incomplete. Lunules (fig. 19g) distinct, 
extending posteriorly, on ventral surface, to posterior portion of 
frontal region. Lateral cephalothoracic margins irregular, with narrow 
membrane extending laterally, second membrane extending medially, 
on ventral surface. Posterior lateral regions lobate, with small, 
socket-like depression. Posterior sinus (fig. 19¢) distinct, semi-V- 
shaped, with fine membrane on outer surface. Posterior median 
cephalothoracic region extending slightly past lateral regions, posterior 
margin irregular. Major dorsal cephalothoracic grooves forming irreg- 
ular H, anterior legs of H terminating in narrow bands of heavy 
sclerotization. Ocular region distinct, just anterior to anterior end of 
H-shaped groove system. 
Female free fourth pedigerous segment distinct from cephalo- 
thorax, indistinctly separable from genital segment. Approximate 
length slightly more than two-thirds the width, lateral margins irreg- 
ularly convex. Genital segment (fig. 19d) elongate, irregularly tapered 
anteriorly, lateral posterior surface lobate. Fifth legs (fig. 21g) situated 
on posterior lateral surface, consisting of 4 plumose setules, 2 from 
nodule, remaining 2 arising from surface of genital segment adjacent 
to nodule. 
Female abdomen elongate, 2-segmented, indistinctly separable 
from genital segment. First segment more than 4 times the length 
of second, lateral margins irregular; second segment with flatly 
convex lateral margins, posterior surface concave laterally, bilobed 
medially, at anal indentation. Caudal rami (fig. 19f) attached to con- 
cave lateral posterior surface of second segment of abdomen, shape 
subrectangular, with small convex projection on distal inner surface. 
Armature consisting of 2 plumose setules from distal outer surface, 
3 plumose setae from outer distal surface, single plumose setule from 
inner distal surface, and plumosities on convex projection of distal 
inner surface. 
Male cephalothorax (fig. 19a) similar to that of female. Free fourth 
pedigerous segment slightly more than twice as wide as long, distinct 
from both cephalothorax and genital segment. Genital segment (fig. 
19c) wider anteriorly than posteriorly, lateral margins flatly convex 
in anterior half, flatly concave in posterior half; dorsal posterior 
surface projecting posteriorly slightly past junction of genital segment 
and abdomen. Fifth legs (fig. 21h) situated on middle of lateral 
ventral surface, consisting of nodule bearing 3 plumose setules. Sixth 
legs (fig. 217) situated on posterior ventral surface, slightly anterior 
