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 lamls'mrgi, Aid. and Hanc. 



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 foUacea. 



The length of the largest specimen when extended was 

 1*5 cm.; and the colouring was very brilliant, 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 rufihranclualis. 

 Under a low power the characteristic lilac colouring is seen 

 to be in a granular condition, and is due to a large number 

 of rounded pigment cells scattered closely over the surface 

 layer of the mesoderm (PI. YIII. 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 (PI. VIII. 

 fig. 7, p(j). There is also a little opaque white pigment 



* See our lirst Report in vol. i. of " Fauna," p. 274. 



