38 DR. J. G. DE MAN ON THE PODOPHTHALMOUS 
dentiform and obtuse. The internal lobes are separated from one 
another by a rather deep triangular incision, the internal from the 
external by a shallower emargination. The smaller, external, 
frontal lobes finally are separated from the obtuse, little promi- 
nent, internal angles of the upper orbital margins by an equally 
shallow emargination. Whereas in JLyom. granulosa, A. M.- 
Edw., the front is armed with six lobes, the four lateral ones of 
which are dentiform, the front of Men. Rumphii only presents 
four lobes, of which the internal are nearly twice as broad as 
the external, as I have already observed. Immediately behind the 
median or internal frontal lobes, two rounded tubercles or promi- 
nences are seen on the front, between the internal orbital angles, 
one behind each median frontal lobe; a little more backwards the 
two rounded epigastric lobes are found, which are ovate, rounded, 
and as prominent as the two lobes that lie before them on the 
front. Immediately behind the epigastric lobes, the four proto- 
gastric lobes are observed, which are, however, very faintly marked, 
the grooves which separate the internal from the external being 
scarcely indicated. All these lobes are separated from one another 
by the median frontal furrow, which is distinctly marked. The 
orbits are small and round, and their upper margin presents 
traces of two fissures. The external angle of the orbits is very 
small, obtuse, and scarcely prominent; as in Myom. granulosa, 
A. M.-Edw., it is separated by a small hiatus from a somewhat 
larger, obtuse tubercle, which les immediately below it, on the 
inferior orbital margin, which is somewhat more prominent. 
The internal lobe of the inferior orbital margin is rounded and 
obtuse, and projects comparatively less forward than in dZyom. 
granulosa, being less prominent than the external frontal teeth. 
The antero-lateral margins, which are almost as long as the 
postero-lateral, present four lobes behind the external angles of 
the orbits, the two posterior of which are dentiform and slightly 
prominent; the two anterior, however, are broad, scarcely pro- 
minent, and obscure. They are separated from one another 
by rather small, shallow notches; quite different from the 
prominent antero-lateral lobes of JIlyom. granulosa, which are 
separated from one another by deep incisions. The greatest 
width of the cephalothorax is at the penultimate antero-lateral 
teeth. The postero-lateral margins are oblique and straight. 
The endostome is not ridged longitudinally. The pterygosto- 
