1210 
Only one right valve and one left valve of this Ostracod are at 
my disposal. However, they show so much resemblance to those of 
the previous mentioned Ostracod, that undoubtedly they also originate 
from a Lowvoconcha species. 
Especially the shape, the sculpture and the edges of the valves 
resemble the others very much. However they differ from those 
directly, because the lateral parts of the valves show a prominence 
on the posterior part above as well as underneath, on which the sculpture 
with pits is present. Whereas the preceding Ostracods had a glassy 
globular tubercle, the valves of this kind possess a rather slightly 
couspicuous prominence, on which the sculpture is wanting. Moreover 
the prominence, characteristic of the species Loxoconcha, which is 
to be found on the posterior ridge, above the middle, is somewhat 
more developed. 
On account of the qualities enumerated just now, I do not hesitate 
to draw the conclusion, that both valves originate from the Lowo- 
concha alata G. S. Brapy, and that, because of their compressed 
shape, they originate from one or two female specimens of this kind. 
Brapy tells us, that the pits on the ventral side of the valves are 
placed in furrows. In this case I have not noticed any sign of this 
eitber. On the other hand, he does not mention the prominence 
which is situated near the posterior ridge of the hinge line, but from 
the sketches it is apparent, that they are undoubtedly there. The 
length of the right valve is 0.52 mm., the height 0.36 min. and 
the width 0.16 mm. 
With certainty this Ostracod was found alive near Tenedos, in the 
Indian Ocean and near Funafuti. 
6. CYTHERIDEA SPINULOSA G. S. Brapy. (Fig. 7, 8). 
1868. Cytheridea spinulosa G. S. Brapy 8, p. 182, t. 13, f. 1—6. 
1880. ss 5 4 5, p. 112, t. 33, f. 6 (a—d). 
1912. 5 53 G. W. Mürrer, 11, p. 328. 
Among the rests which have been investigated by me, there are 
many of this species of Ostracods. Whole carapaces are more or 
less cylindrical. In front they are laterally flattened and while the 
width augments towards the posterior part, the section is circular. 
Seen from above, they are consequently, somewhat wedge-shaped. 
Seen laterally the carapaces are about elliptical. At the dorsal ridge 
they are somewhat convex, ventrally almost straight and somewhat 
concave. The front part is more prominently rounded than the 
