278 COLE 
TANYSTYLUM INTERMEDIUM pp. nov. 
Plate xx1, figs. 7-9; plate xx1I, figs. 1-7; plate xxu1I, figs. 1-3. 
Type.— Sand ¢, University of California, No. 19,510, San Diego, 
California. 
Trunk broad, segmentation not evident; the anterior border with the 
outer corners each produced into a prominent tubercle which bears a 
spine. Lateral processes not so long as width of body, wedge-shaped and 
closely crowded, the outline of their outer borders, together with the 
anterior border of the trunk, making a complete circle; first, second, and 
third pairs with a dorsal tubercle near the distal end, shorter and rounded 
in the female, longer, more pointed, and terminated by a short bristle in 
the male. 
Caudal segment moderate, reaching to about the middle of the second 
coxal joint of the fourth pair of legs; rather narrow, about half as broad 
as basal joint of leg; diameter somewhat larger distally than proximally 
as seen from above; directed obliquely upward at less than 45°; smooth, 
apex rounded. 
Eye tubercle moderate, rather thick, blunt; situated at the extreme 
anterior end of the first trunk segment and directed forward at about 
the same angle that the caudal segment projects backward. Eyes rather 
large, dark; posterior pair apparently the larger. 
Proboscis pyriform, being widest a third of its length from the base 
and tapering to a more or less truncated tip; usually directed somewhat 
downward; about as long as trunk from its anterior border to the distal 
end of the fourth pair of lateral processes. In side view nearly straight 
on ventral side; dorsal side strongly convex. 
Chelifori 2-jointed, very short, about one fourth as long as proboscis ; 
first joint about twice as long as broad, slightly curved, with a small 
tubercle and a short spine near the distal end; second joint very small, 
rounded, divided into two parts by a groove, showing the former 
presence of chelz. The second joint also bears a short spine. 
Palpi 7-jointed, rather stout, slightly overreaching the proboscis (by the 
terminal joint). First and third joints short; 7.2 and 7.4 longer, 7.2 
longer than 7.4; 77.5, 6, and 7 successively smaller. These 3 joints with 
a considerable number of short bristles or hairs; other joints with a few 
scattered ones, 7.2 having a somewhat stronger one on its outer distal 
corner. 
Oviger of female slender, about equal in length to the palp. First 3 
joints short and of about the same length; 77.4 and 5 longest; the suc- 
