424 
PACIFIC SCIENCE, Vol. XI, October, 1957 
Figs. 58 - 61 . Centrotrombidium approximatum n. sp.: 58 , tibia and tarsus of palp, female, anterior; 59 , tibia and 
tarsus of palp, female, posterior; 60, chelicera, female; 61, entire palp, female, anterior. 
Figs. 62 - 64 . Centrotrombidium hadroseta n. sp., female: 62 , ocular plates, anterior aspect on left, dorsal aspect 
on right; 63 , propodosoma; 64 , hysterosomal setae, side and top view. 
somewhat shorter. Sensilla with terminal por- 
tion spherical, rather abruptly differentiated 
from stalk as in C. distans. Ocular plates (Fig. 
62) with a single hyaline cornea plus a large 
punctate posterior lobe bearing a few tuber- 
cles. Dorsal body setae borne on individual 
sclerites as in other members of the genus, the 
sclerites in the form of very low cylinders, 
relatively lower than those of C. distans; shaft 
of setae short, extending only a little beyond 
the margin of the setigerous sclerite, appre- 
ciably thicker than in C. distans , and not 
tapering uniformly as in that species (hence 
the name). Other details of dorsum and ven- 
ter essentially as in C. distans. Genital sclerites 
with 7 and 8 setae each, paragenital sclerites 
with 15 and 16 setae each. Anal sclerites each 
with 7 setae. In the holotype female, the 
solenidion of the tarsus of the palp is located 
somewhat more distally than in the previously 
described species, and the terminal eupathidia 
of the tarsus are somewhat longer; however, 
it is impossible at present to know whether 
these differences are of real significance. 
