CRUSTACEA. 303 
and 14 or 15 on the lower. The two or three proximal teeth 
are placed on the cephalothorax, and all stand close together, 
the two last ones excepted, that are more distant from one 
another, the foremost near the apex; the teeth of the lo- 
wer margin decrease in size towards the apex. By its short- 
ness and by its shape, the rostrum somewhat agrees with 
that of the specimens from the river near Mbawa on the 
island of Flores (de Man, l.c. p. 393). The terminal post- 
abdominal segment is armed on its upper surface with 
five spinules on the right side and with four on the left 
and shows nine spinules at the distal end; those that stand 
at the external angles, are short, as long as the spinules 
of the upper surface, those of the second pair are four 
times as long and the longest of all, the spinules of the 
third and of the fourth pair are almost of the same length 
and somewhat shorter than those of the second pair, but 
finally instead of two spinules in the middle, as usual, 
in this specimen only one single median spinule is ob- 
served, which is a little longer than the spinules of the 
third and fourth pair, and scarcely shorter than those of 
the second. 
The two pairs of antennae fully agree with those of 
the typical species. The legs of the first and of the se- 
cond pair are typical. Those of the third reach a little 
farther, as they extend with a part of their terminal joints 
beyond the distal extremity of the scales; the legs finally 
of the fourth pair and those of the almost equally long 
fifth extend as far as in the typical species. The dactylo- 
podites of the third and of the fourth pair have the same 
form as usual (de Man, l. e. fig. 29ec), being armed with 
six or seven spinules on their inner border, but they 
measure a fifth of the length of their propodites, as in 
the variety: gracilipes. The terminal joints of the fifth 
pair measure a fourth of their propodites, show 50—60 
spinules on their inner margin, but have the same form 
as in the typical species (]. c. fig. 29d d). 
Notes from the Leyden Museum, Vol. XV. 
