142 LIVERPOOL BIOLOGICAL SOCIETY. 
are seen to pass gradually over into the hepatic cells. The 
cnida, which are very numerous, are large and of nearly 
globular form (fig. 2) like those of Facelina drummondi, 
and the thread is coiled transversely to the longer axis 
of the cell. 
Coryphella lands urgi, Ald. and Hane. 
We found four specimens of this rare species at the 
north end of Hilbre Island, on March 21st, 1890. This is 
apparently the first time it has been taken in the district 
since the two original specimens recorded by Byerley in 
1849 and 1853.* Our specimens were obtained at extreme 
low water of a twenty foot tide, and at least two of them 
were attached to Flustra foliacea. 
The length of the largest specimen when extended was 
15 cm.; and the colourmg was very brillant, the body 
and tail and the tentacles, both oral and dorsal, as well 
as the surface layer of the cerata being of a bright lilac, or 
from that to a violet tint, while the central part of the 
cerata varied from a bright brick red to a vermillion col- 
our, very much as in the case of Coryphella rufithranchialis. 
Under a low power the characteristic lilac colouring is seen 
to be ina granular condition, and is due to a large number 
of rounded pigment cells scattered closely over the surface 
layer of the mesoderm (Pl. VIII. fig. 10). 
The cerata are arranged in groups. Commencing at 
the anterior end there are first four rows closely placed, 
then two rows, then four sets of single rows having six 
cerata in each row. The larger cerata are long and taper- 
ing. Near the tip of each is found an incomplete ring of 
opaque white pigment placed upon the surface and obscur- 
ing the median portion of the cnidophorous sac (Pl. VIII. 
fic. 7, pg). There is also a little opaque white pigment 
* See our first Report in vol. i. of ‘‘ Fauna,” p. 274. 
