140 DR. J. G6. DE MAN ON THE PODOPHTHALMOUS 
are transverse and a little oblique; and the eye-peduncles, 
which are somewhat thickened at the cornea, are as long as the 
orbits. The upper margin of the orbits, which is finely ciliated, is 
smooth, entire, and a little raised upward, and the external angle 
is obtuse and not prominent. The lateral margins of the upper 
surface are slightly divergent posteriorly, and terminate nearly 
between the bases of the fourth and fifth pair of legs, being 
somewhat deflexed downward ; their anterior half appears rather 
concave and their posterior slightly convex ; so that the greatest 
width of the upper surface is found behind the middle. The 
lateral margins are slightly raised upwards along their anterior 
half, and present a small emargination immediately behind the 
obtuse external orbital angle, without forming, however, an epi- 
branchial tooth. The lateral margins are shortly ciliated. The 
external antenne are short, scarcely reaching to the cornea of the 
eye-peduncles. The inferior margin of the orbits is smooth and 
entire, and terminates laterally in a triangular, obtuse, thickened, 
much prominent lobe, which constitutes the external angle of the 
infraorbital margin. In those species of the genus Dotilla that 
I have examined, such as de Haan’s Scopimera globosa, this lobe 
is quite absent, the external angle of the infraorbital margin 
being not at all prominent; and this different structure of the 
orbits changes so much the general outer physiognomy of this 
species, that I was induced by it to regard this form as the repre- 
sentative ofa new genus. The short ciliated external margin of 
the orbits, which unites the external angles of the supraorbital and 
infraorbital margins, presents a triangular hiatus close to the 
external angle of the supraorbital margin. The pterygostomian 
regions and the other inflected sides of the cephalothorax are 
smooth, not sulcate, and rather thinly covered with short hairs; as 
in the genera Gelasimus and Helecius, a ciliated line is found on 
the lateral surface of the cephalothorax, proceeding from the 
middle of the lateral margins towards the bases of the legs of the 
penultimate pair. The smooth, short, and narrow epistome is 
slightly more prominent than the front. The anterior margin of 
the buccal cavity presents a triangular equilateral prominence in the 
middleasin Dotilla, and a small narrow incision ateach lateral angle. 
The external maxillipeds closely resemble those of the genus 
Dotilla; but their merus-joints are quite smooth and ungrooved. 
They meet along their inner margins, which are a little hairy. 
The ischium-joint is quadrangular, scarcely broader than long ; 
