THE ANNALS 
AND 
MAGAZINE OF NATURAL HISTORY. 
[SECOND SERIES.] 
No. 22. OCTOBER 1849. 
XXIV.—Description of two new species of Floscularia, with 
remarks. By W. Murray Dostz, M.D., F.B.S.E., Member 
of the Royal Medical and Clinical Societies of Edinburgh. 
[ With a Plate. ] 
WHILE examining various Rotifera in April this year (1849), 
I met with two Floscularias which differ essentially from any 
hitherto described. I propose in the present paper to charac- 
terize and describe briefly these two species, to which the plate 
has reference, and accompany the description with a few general 
remarks. 
Floscularia campanulata (mili). Pl. VI. fig. 3. 
Sp. Char. Case diaphanous. Rotatory organ furnished with five 
flattened lobes fringed with very long cilia. Body ovate, with- 
out proboscis. Tail long and terminating abruptly in a trans- 
parent filament spread out into a kind of sucker at the poimt 
of attachment. Pl. VI. fig. 1. 
Length , in. when extended. Egg with two red eye-spots, 
contained in a large ovary. 
Hab. Boggy Park pond, 83 miles from Chester. Found on 
Ceratophyllum and Confervee. 
Floscularia cornuta (mihi). Plate VI. fig. 4. 
Sp. Char. Case short, diaphanous, and not very distinct. Rota- 
tory organ furnished with five rounded lobes surrounded with | 
extremely long and delicate cilia. A short, narrow, non-ciliated, 
flexible process (cornu) is attached to the outside of one of 
the lobes. Egg with two red eye-spots. Young animal with 
vibratile cilia on head and rapidly locomotive. 
Length 5 1. when extended. 
Hab. Boggy Park pond. Found on Ceratophyllum. 
Ann. & Mag. N. Hist. Ser. 2. Vol. iv. i6 
