_ 
— 
Fresh CHlater Polvsoa found in the 
Petahbourhood of Chester. 
BY st... SHE PWD AR D. 
Tpvre G been requested by the Committee to publish my 
notes on the Fresh-Water Polyzoa found in this district, 
I feel that, owing to my engrossing business occupation, the 
record must necessarily be of a fragmentary character; it 
may, however, such as it is, induce younger members, who 
have more leisure than myself, to give their attention to this 
most delightful branch of Natural Science. 
Cristatella mucedo, Cuvier. 
Specifie character.—Cceenecium sacciform, hyaline, with a common 
flattened disc adapted for locomotion ; orifices placed on the 
surface opposite to the disc, and arranged in several concentric 
marginal series. Statoblasts orbicular, with an annulus and mar- 
ginal spines.—Ad/man. 
This, the Queen of Polyzoa, was first found in this locality in 
the Lake in Oulton Park Gardens, on the 22nd July, 1874. It 
had then only two Polypides, one considerably larger than the 
other. On the 2nd of August the same colony contained four 
Polypides, which appeared in great beauty, the first being still . 
the largest. 
On the 13th and 20th September, 1874, I found several full- 
grown specimens in the Canal, near the Mollington Road 
Bridge; and on the 4th October found others, which were 
wasting, aud being devoured by worms, &c. The Statoblasts 
