260 THE SCHIZOPODA. 
Sta. 4730. Jan. 20,1905. Lat. 15°7’S., long. 117° 1.2’W. 300 fms. to surface. 14 specimens. 
Sta. 4732. Jan. 21,1905. Lat. 16° 32.5’S., long. 119° 59’ W. 300 fms. to surface. 9 specimens. 
Sta. 4734. Jan. 22,1905. Lat. 17° 36’S., long. 122° 35.6’ W. 300 fms. to surface. 2 specimens. 
Sta. 4742. Feb. 15,1905. Lat. 0° 3.4’ N., long. 117° 15.8’ W. 300 fms. to surface. 2 specimens. 
Finally from the following locality :— 
Fiji Islands. 5m. South of Suva lightship. Dec. 16, 1897. 100 fms. 1 small specimen. A. Agassiz. 
To the description and remarks in the “‘Siboga” paper a few points may be 
added. 
The maxillae (fig. la) have the main part, viz. second and third joints with 
their lobes, very large in proportion to the fourth joint; the palp, which is much 
smaller than in the two following species, scarcely half as long again as broad 
and only a little more than half as long as the inner margin of the lobe of third 
joint. 
In most adult females the rostrum is long (fig. 4c) and only moderately 
broad towards the base, but in two or three females the rostrum is very short 
and broadly rounded (fig. 4d); whether this aberrant feature is an individual 
anomaly or is due to damage days or weeks before the capture of the individuals 
cannot be decided. .The adult males from the East Pacific differ from those 
from other oceans by having the very slender rostrum (fig. 4a) appreciably 
longer, about as long as or a little longer than the breadth of the second antennu- 
lar joint. Finally immature males before the last moult may be mentioned. 
As is seen from a comparison of fig. 4a, representing an adult male, with fig. 4b 
representing an immature male — and both figures were drawn with the same 
degree of enlargement — the two distal joints of the antennular peduncles are 
proportionately more slender and especially the third joint conspicuously longer 
in the immature than in the adult, furthermore the former has the rostrum 
somewhat longer and broader at the base than is the case in the adult.— Finally 
the copulatory organs, as the difference in the relative length of the processes 
in the adult and in the immature male is interesting and at first sight even be- 
wildering. 
In the adult N. microps the proximal process is, as shown in the “Siboga”’ 
paper, considerably or much longer than the terminal process, while in the 
immatures males the difference between the length of the two processes men- 
tioned is slight (Plate 10, fig. 1b), thus in this respect only it is but slightly dif- 
ferent from the feature found in N. atlantica H. J. H. (In the latter species, 
however, the terminal process overreaches considerably the spine-shaped process, 
which is not the case in the immature N. microps). And it is very interesting 
