10 DR. J. G. DE MAN ON THE PODOPHTHALMOUS 
The posterior tubercle of the five of the gastric region, that 
stands on the middle of the urogastric lobe, is situated exactly 
in the centre of the circular cephalothorax ; its distance from the 
next median gastric tubercle is greater than the distance of the 
latter from the third, while the distances between the three 
anterior tubercles are still somewhat smaller. Immediately 
before the foremost median gastric tubercle, two still more 
depressed rounded tubercles are found, situated close to one 
another in a transverse line and occupying the epigastric lobes. 
The protogastric lobes present a very small tubercle, placed on 
the side of and immediately behind the second gastric tubercle, 
and two orthree other scarcely perceptible prominences more 
laterally. Each of the hypogastric lobes is also provided at its 
anterior angle with a very small tubercle equal in size to that 
of the protogastric lobes, and therefore also smaller than the 
median gastric prominences. Finally, some more or less acute 
tubercles are found on the hepatic, epi- and mesobranchial lobes. 
As regards the under surface of the carapace, I may remark 
that it is wholly covered with the down which occurs in so many 
species of this genus, except the postabdomen, which is nearly 
smooth. Theantero-lateral angles of the buccal cavity are armed 
with two nearly equal small spines, which are even a little shorter 
than the first antero-lateral spine of the carapace, being about 
the same size as the second. The postabdomen is composed of 
seven segments, of which the fourth, fifth, and sixth are coalescent ; 
their outer surface is minutely punctate, but the rest are smooth. 
The chelipedes are equal and a little shorter than the 
cephalothorax, being about 32 millim. long; the convex outer 
and inner surfaces of the hands are smooth, though minutely 
punctate, and the fingers nearly meet along their whole inner 
margins, presenting some small tufts of very short hairs on their 
outer and inner surfaces. In the male of this species the che- 
lipedes are considerably larger. ‘The legs of the second pair, 
measuring about 66 millim., are somewhat shorter than twice the 
length of the cephalothorax ; in the adult male they are, how- 
ever, a little longer than twice the length of the cephalothorax, 
according to Fabricius’s type. The other legs successively decrease 
in length. The legs are everywhere covered with a close down, 
except the terminal ends of the dactylopodites. 
This specimen agrees perfectly with the typical specimen 
of Inachus hybridus, Fabr., except as regards the fourth (or last) 
