126 DR. J. G. DE MAN ON THE PODOPHTHALMOUS 
those which separate the epibranchial from the mesobranchial 
regions, are also distinct, but the branchio-cardiac sutural lines 
are faintly marked. The anterior is nevertheless distinctly de- 
fined from the posterior cardiac region, and even the grooves 
which define the mesogastric from the protogastric area are 
faintly indicated. Furthermore, on each side of the carapace a 
groove is observed close and parallel to the posterior margin of 
the cephalothorax, above the bases of the posterior legs. 
The upper surface is granular anteriorly and on the lateral 
regions ; the granules present the following distribution. A few 
granules are found on the anterior and lateral portions of the 
gastric region, but more numerous and somewhat larger granules 
are observed on the hepatic and branchial regions. No granules 
are found on the mesogastric and cardiac regions. The upper 
surface, especially posteriorly, is also seen to be punctate, when 
examined under a magnifying-glass, and is slightly pubescent, 
especially in the interregional grooves and on the lateral regions. 
The front is strongly, nearly vertically, deflexed ; its breadth, 
measured between the eye-peduncles, is a fifth of the distance 
between the external orbital angles. Its anterior margin is slightly 
emarginate in the middle, and the antero-external angles are 
rounded ; its upper surface is minutely granulate and slightly 
pubescent, and is bordered posteriorly by the two ridge-like, 
transverse, smooth, epigastric lobes, and presents a faintly marked 
mesial furrow, which is bifurcated immediately behind the epi- 
gastric ridges, the two bifurcations including the anterior end 
of the mesogastric area. 
The orbits are transverse and their upper margin is minutely 
denticulate or crenulate. The lateral margins of the cephalo- 
thorax, which are nearly straight, present three acute teeth, in- 
cluding the external orbital angles. The first tooth, or external 
orbital angle, is acute and directed outwards and slightly forwards ; 
the external margin of this tooth is armed with two or three 
minute teeth. The first antero-lateral tooth is separated from 
the next by a deep triangular incision. The second tooth is much 
larger than the first, about once and a half as long, and is very 
acute; being directed also transversely outwards and forwards, 
it projects a little more outwards than the first tooth, so that the 
cephalothorax presents its greatest width between the second teeth. 
The external margin of the second tooth is also minutely denti- 
