69 
. The Victoria Regia tank has not yielded many Rotifers, but 
twice I found there the rather rare C. ephalesinho limnias. The 
water is kept at a temperature of about 85° F 
new species have so far been discovered, nor have I 
found any Rotifer of extreme rarity, aa males of Euchlanis 
oropha a and x triquetra were obtained in No. 4 tank for the first 
: rally ipiking thé rotatorial fauna of the Gardens is 
fairly Pas: of that usually found round London 
The spring and the — particularly October, seem to be 
the times when there is the greatest abundance and variety in 
v nie ipfe (s M doctis a species becomes very prolifie in the 
mer months. 
The Rotifera form a class of animals fairly cosmopolitan in 
their range, the same species, with very few exce ipu being 
found all « over the world, when thoroughly searched fo 
, 
d 
se’s Monograph: The Rotifera or Wheel- 
Animaleules (London, 1886-89). Those to which references are 
ad e been discovered since the publication of this standard 
RHIZOTA. 
Floscularia ornata, Ehrenbg. 1 and 4. 
F. ambigua, Hudson. J and 4. 
F. cornuta, Dobie. 1. 
F. edentata, Collins. 1. 
F, regalis, Hudson. 1. 
F. annulata, Hood ; Science Gossip, 1888, p. 8. 1. 
Stephanoceros Eichhornii, Ehrenbg. 4. 
Melicerta ringens, Schrank. 4. 
M. tubicolaria, Ehrenbg. 1. 
Limnias ceratophylli, Schrank. 2 and 5. 
L. annulatus, Weber, var. granulosus, Weber, Faune Rotato- 
rienne du Bassin du Chaan; 1898, p. 292. 4and 5. 
Cephalosiphon limnias Ehrenbg. 5. 
Oecistes crystallinus, EArenbg. 1, 2, and 5. 
O. intermedius, Davis. 4. 
Lacinularia socialis, Hhvenbg. In the riverside ditch. 
Conochilus unicornis, Rousselet ; Journ. Quekett Mier. Club, iv. 
1892, p. 367. 
