158 MARIE V. LEBOUR. 
RADIOLARTA. 
* Nordisches Plankton,’ Vols. 3 and 17. 
(1) Acanthochiasma fusiforme Haeckel. At intervals throughout the 
year, sometimes abundant in June and October. 
(2) Lithomelissa setosa. Jorg. Rare, November and December. 
(3) Amphimelissa setosa Cleve. Rare, October to May. 
SUCTORIA. 
“ Nordisches Plankton,” Vol. 16. 
(1) Paracineta limbata Maup. Rare, November to January. 
(2) Acenita tuberosa Khy. v. Fraiponti (Fr.). Only once in October. 
(5) Ephelota crustaceorum Haller. Once in November on the legs of a 
Copepod. 
INFUSORIA. 
** Nordisches Plankton,’ Vol. 15. 
The Tintinnoidea are much the most abundant of the Infusoria, as 
Lohmann found. However, a large number of small Infusoria are lost 
completely by the nets, and these are fairly common in the water samples. 
Many of them are exceedingly fragile and very easily destroyed. Prob- 
ably many of them are lost. Among those commonly found is a small 
species of Mesodinium allied to M. pulex, which is very difficult to count 
as it jumps about and collapses before it can be preserved. Species of 
Laboea are also common. Others unidentified are many and varied. 
Tintinnopsis ventricosa which is common in the water samples as wel] 
as the tow nettings has a maximum of 300 in a litre in June Lohmann 
found its maximum was 8800 in 100 litres. However, 7’. beroidea at Kiel 
had a maximum of 1,200,000 per 100 litres, while here its maximum 
number was 460 1m a litre. 
Several of the species originally described by Lohmann are found to 
occur here and some of Leegaard’s newly described species of Laboea 
and its allies. The abundance of these small Infusoria as found by Gran 
from the Dutch waters does not agree with our records. 
(1) Lachymaria sp. Only occurred once, water samples, May. 
(2) Coleps sp. A small species shaped like a flower-pot with square ends, 
water samples, rare, August. 
(3) Trarina fusus Cl. and L. Fairly common in August and September, 
rare in July and October, chiefly in water samples. 
