8 
Rhipiceplialus 
Cervical grooves deep oval pits, generally followed by shallow 
divergent depressions. Eyes somewhat salient, emphasized by a rather 
deep impression at their donsal limit. Festoons very short, their intervals 
rather broad. Median dorsal furrow rather long and pointed anteriorly ; 
lateral furrows small, oval, near the festoons but generally detached. 
In w'ell-fed specimens the body extends beyond the scutum and there 
is a caudal appendage terminated by a “ plaque.” 
Fig. 2. R. neavei n. sp. . Dorsal aspect, ventral view of capitulum, anal plates and 
spiracle. Original, C. W. 
VENTEA.L ASPECT: Integument often much lighter coloured than the 
scutum, legs and plates. Auricular ridges of basis capituli well-marked, 
and directed somewhat backwards. Coxal armature normal. Anal 
plates typically as described above, but subject to considerable variation, 
the angle formed by the external and posterior borders being sometimes 
more obtuse, and the inner protuberance less noticeable; accessory 
plates only indicated by a very slight chitinous point. Legs long. 
Female. Gapitidum: basis capituli like that of the d") with the 
antero-lateral border rather more convex; porose areas small, circular, 
two diameters apart; palps somewhat larger than in the </*, article 1 
more vi.sible. Scutum about 1'3 x I'l mm.; eyes rather large and 
salient, and' situated somewhat posteriorly; cervical grooves well- 
marked, converging at first, then sharply diverging; lateral grooves 
absent, but there is a convex smooth region on either side; the median 
field is closely and fairly uniformly punctate and there are a few 
