84 DR. J. &. DE MAN ON THE PODOPHTHALMOTJS 



King Island Bay, and five at ElpMnstone Island ; but tbe exact 

 localities of the others are not recorded. The largest specimen is 

 63 millim. broad, the smallest only 11 millim. ; and the 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. la 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 e. g. in the largest indi- 

 vidual. The upper surface is marked anteriorly with the usual 

 minutely granulated, slightly prominent, transverse lines. The 

 posterior line which unites the last antero-lateral teeth with one 

 another has a somewhat sinuous course, and it ia interrupted, on 

 each side of the mesogastric area, by the scarcely distinct gastro- 

 branchial groove ; before this line the middle of the protogastric 

 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, i. 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' smallest specimen of the Collection, only 

 11 millim. broad, the two first or m.edian 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 



