258 DR. J. @. DE MAN ON THE PODOPHTHALMOUS 
on the sides. The terminal segment exactly re 
Gebiopsis Darwinu in its general form, ha, 
margin nearly straight, unarmed, and fringed . she 
upper surface of this segment bears on each side «cudinal 
ridge parallel to its lateral margins; and these twe ridges are 
united by a transverse ridge situated at some distance from but 
parallel to the anterior margin. Three longitudinal grooves occur 
on the area defined by these ridges, namely, one in the middle and 
one on each side, close to the ridges. The elevated parts of the 
upper surface of the segment are more or less distinctly trans- 
versely rugose. 
The internal antenne are shorter than those of G. nitida from 
the Cape Verde Islands, but longer than those of G. Darwinii : 
as in G. nitida the terminal joints of the peduncles project 
beyond the front; but in G. intermedia they are much shorter, 
scarcely measuring more than a fourth of the length of the 
gastric region. The peduncle bears two subequal flagella, of 
which the interior one is a little longer and much thicker than 
the other. The external antenne are a little longer than the 
carapace, and are similar to those of G. Darwinit. Their 
peduncles are scarcely longer than those of the internal antenne, 
and their joints are short, resembling those of the species from 
Port Darwin; the antepenultimate joint is armed at the distal 
end of its upper margin with a minute spinule, and the last two 
joints are clothed above with long hairs. The outer maxillipeds 
project somewhat more forwards than the peduncle of the external 
antenne. 
The chelipedes are equal to one another and about once and a. 
half as long as the carapace; in their outer appearance they 
seem to resemble those of the species from the Cape Verde 
Islands. The laterally compressed meropodites project nearly 
as much forwards as the peduncles of the internal antenne ; 
they are everywhere smooth and glabrous, except the imternal 
margins of their narrow under surfaces, which are armed along 
their whole lengths with a row of minute equal spinules, about 
25-30 in number, and fringed with very long hairs. Some few 
short hairs are also found along the external margins: of their 
under surfaces and at the distal ends of their upper surfaces. 
The wrists are short, and armed with two rather strong, acute, 
subequal spines, one at the distal end of the upper margin, and 
the other at the distal end of the under margin; the latter some- 
