204 A. e. OFDEMANS, NOTES ON ACABI. 



abdominal incision. On the sides of the abdomen from the 

 anal suckers backward to the ends oF the horns the posterior 

 dorsal shield is sufflexed a little ventralward apparently to 

 clasp the female during the copulation. 



M a n d i b u 1 a seen from above, like in the deutouympha. 

 Maxillae like in the deutonyrapha. Legs short and 

 thick, scarcely longer, if any, than the width of the abdomen. 

 Legs IV scarcely thicker, if any, than legs III; they reach 

 with their heart shaped caruncle the lateral minute pin of 

 the horns. 



Female (Fig. 3) Length 424 — 440 y. Colour brown 

 with lighter and darker hues, darkest in the region of the 

 excretory glands. Shape, almost oblong square, becoming 

 somewhat rarrower backward, posteriorly truncate, even some- 

 what concave, with angles obliquely cut off. As the creature 

 is capable to shove its anterior body within its posterior one 

 (like a spying-glass) and to move its lateral shields downward 

 and upward, the relative length and width may vary con- 

 siderably. — Texture smooth in the shields ; finely wrinkled 

 in the weak parts. 



Dorsal side (Fig. 3). The margins of the anterior part 

 are very dark and chitinous, they lengthen ventrally (see fig. 

 4) behind legs II. Anterior shield occupying the 

 whole space within the dark margin ; it is, however, not widened 

 behind the legs II. Behind the anterior shield a band of 

 weak skin. 



Posterior shield and lateral shields occu- 

 pying the remaining dorsal side; there is, however, a narrow 

 unprotected band between the lateral and posterior shields. 

 The latter one has darker lateral margins. The excetory glands 

 aie very dark. Hairs: No vertical hairs. On the 

 anterior shield near the trochanteres II a pair of hairs almost 

 as long as tlie width of the shield. On the lateral shields are 

 planted the long hairs, which may become ventral, as long as 



