1209 
The rather abundant material which [ have at my disposal consists 
of whole carapaces and loose valves. We notice at once that it 
originates from 2 forms viz. from a longer and a shorter one. 
According to Brapy the former is the male, the latter the female. 
With a carapace of a male I find a length of 0,58 mm., a height 
of 0,39 mm. and a width of 0,32 mm., while these measurements 
in the case of a female are 0,50 mm., 0,37 mm. and 0,29 mm. 
That these rests originate from a representative of the Lovoconcha 
(8, p. 232; 9, p. 530) appears in the first instance at once from 
their peculiar shape. This is more or less diamond-shaped, because 
the ventral and hinge line are about parallel, just as the anterior 
and posterior one. This last phenomenon is partly caused by the 
posterior line having a prominence above the middle. Then both 
species have valves which are fairly thin walled, at each extremity 
of the hinge line a slightly developed tooth is found, while the 
hinge line itself is thinly crenelated. The hingement of the right 
valve has a furrow and that of the left valve is acute. [ find the 
same relation very clearly with the free ridges. The “Verwachsuangs- 
linie” and the “Innenrand” coincide every where. The “Porenkanäle” 
which are not bifurcated and which are wide apart are clearly 
visible. There, where the first hinge tooth is to be found, both 
valves possess on the outside a glassy globular tubercle. The outer 
surface of the valves has at the same time a sculpture which is 
caused by smal! pits. The distance between these varies considerably. 
Sometimes it is so small, that the sculpture becomes more or less 
reticulous. 
Especially as to shape and sculpture of the carapaces, this Ostracod 
resembles Loxoconcha australis Brapy so much, that | think, I had 
better class it among this species. Yet the sculpture does not agree 
in all respects with what Brapy says about it. He says, as a matter 
of fact, that it is on the outside ‘obscurely concentric” while in 
our remnants the pits are clearly placed in concentric rows. However, 
he remarks at the same time, that the pits are placed in furrows, 
so that probably this difference does not exist. 
According to Mürrer these Ostracods have been found alive in 
Australia, New-Caledonia, Funafuti and Ceylon. 
5.’ LOXOCONCHA ALATA G. S. Brapy. (Fig. 14). 
1868. Loxoconcha alata G. S. Brapy, 8, p. 223, t. 14, f. 8—13. 
1880. rs > Gis. BRADY, 5; py 1225 te Ain afs Gear: 
L910! a »  . CHAPMAN, 6, p. 435. 
1912. N „GW. Mürver, 11, p. 344, 
