G. H. F. Nuttall, W. F. Cooper and L. E. Robinson 181 
INDEX TO LETTERING ON PLATES XIV—XVI. 
amp. 
ampulla at base of hair. 
an. 
anus. 
b. c. 
basis capituli. 
hue. cav. 
buccal cavity. 
c. 
corona. 
eh. 
chelicera. 
cn. 
cornu. 
d. cli. 
digit of chelicera. 
a. P . 
dorsal process. 
d. r. 
dorsal ridge. 
e. a. 
external article of digit. 
/■ 
festoons. 
/■ h. 
feather-hair on infra-internal margin of palp. 
a- 
gutter on dorsal surface of hypostome. 
!)■ o. 
genital orifice. 
h. 
hypostome. 
ltd. 
hood surrounding digit. 
i. a. 
internal article of digit. 
mb. 
flexible membranous portion of feather-hair. 
P- 
palp. 
p. a. 
porose area. 
ph. 
pharynx. 
pr. 
pores on article of digit. 
r. 
ridge on article 2 of palp. 
s. d. 
salivary duct. 
sh. 
sheath of chelicera. 
s. eh. 
shaft of chelicera. 
v. r. 
ventral ridge. 
1. 2. 3. 4. 
articles of palps. 
I. II. III. IV. 
coxae. 
Parasitology i 
12 
