84 DR. J. G. DE MAN ON THE PODOPHTHALMOUS 
King Island Bay, and five at Elphinstone Island; but the exact 
localities of the others are not recorded. The largest specimen is 
63 millim. broad, the smallest only 11 millim.; andthe others are 
of intermediate size. 
In its general outer appearance this species resembles closely G 
quadrimaculatum, A. M.-Edw.,= G. luciferum, Fabr., the cephalo- 
thorax being considerably enlarged. In the largest specimen, 
which is 63 millim. broad, the distance between the tips of the 
last antero-lateral teeth is in proportion to the length of the 
cephalothorax as 21:13. The rather depressed upper surface 
of the cephalothorax appears minutely punctate when it is exa- 
mined under a lens ; and it is covered with a short pubescence, 
especially anteriorly and on the antero-lateral regions, but in 
many specimens this is worn off, as ¢. g. in the largest indi- 
vidual. The upper surface is marked anteriorly with the usual 
minutely granulated, shghtly prominent, transverse lines. The 
posterior line which unites the last antero-lateral teeth with one 
another has a somewhat sinuous course, and it is interrupted, on 
each side of the mesogastric area, by the scarcely distinct gastro- 
branchial groove ; before this line the middle of the protogastrie 
region is marked with another non-interrupted transverse line, 
which is as broad as the front; and before this line two pairs 
of transverse lines are found on the epigastric area, the anterior 
pair being very small. No transverse lines are found behind the 
long line which unites the two last antero-lateral teeth. 
The front, 2. e. the distance between the internal orbital angles, 
measures precisely a third of the distance between the tips of the 
last antero-lateral teeth. The large series of individuals in the Col- 
lection has enabled me to observe a remarkable fact, namely, that 
the frontal teeth are blunt and rounded in very young specimens, 
that they successively appear more pointed in older ones, and 
that they are finally more or less acute and sharp in adult indi- 
viduals. Thus in the smailest specimen of the Collection, only 
11 millim. broad, the two first or median teeth are blunt, rounded, 
and separated from one another by a minute incision ; the second, 
somewhat broader, teeth are also broadly rounded, slightly 
directed outwards, and separated from the first by a small trian- 
gular hiatus; the third teeth are straight, also blunt, though 
narrower than the first, and separated from the second by 
a narrow, though somewhat longer fissure; the fourth frontal 
teeth or internal orbital angles are triangular, and also 
