1386 DR. J. G. DE MAN ON THE PODOPHTHALMOUS 
external and internal margins being arcuate. The outer surface 
does not present the W-like figure that characterizes this joint in 
D. sulcata and D. brevitarsis, but the internal half appears quite 
smooth, somewhat as in Scopimera globosa; a slight angular de- 
pression, however, is found on the surface of the merus-joint ante- 
riorly, the corner of the angle being the anterior tip of the joint 
and the opening being directed backward; moreover a piliferous 
elevated and curved line proceeds from the external angle of the 
posterior margin of the joint into the angular depression, which 
T have described. The sternum is smooth, without “ tympana.” 
The abdomen of the male perfectly resembles that of D. sulcata, 
the anterior margin of the fourth joint being emarginate in the 
middle and also piliferous; the second (penultimate) joint is a 
little more than twice as broad as long and shorter than the 
rounded terminal joint, the base of which is a little broader than 
long. | 
With respect to the chelipedes and the ambulatory legs, D. 
intermedia nearly agrees with D. sulcata.; but the following dif- 
ferences may be observed. The fingers of the chele in D. inter- 
media (fig. 5) are comparatively a little longer than those of 
D. sulcata (fig. 6), being about 2-3 times as long as the palm, 
in D. sulcata only 14 times. The fingers therefore are very 
slender and gradually taper into an acute point; they are 
minutely denticulate at the base, somewhat as in Forskal’s 
species. The ambulatory legs fully resemble those of D. sulcata. 
The meropodites are all provided with “ tympana,” and those of 
the last pair have the tympana almost half as long as the joint. 
The propodites are more distinctly longitudinally grooved on 
their outer surface than those of D. sulcata: the dactylopodites 
also resemble those of that species; those of the last pair of 
legs, however, are comparatively a little longer, measuring 
nearly twice the length of the propodites. The legs are some- 
what hairy. 
This Dotilla is much smaller than the other species, the 
cephalothorax being only 4-43 millim. broad. 
