THE COPEPODA OF LIVERPOOL BAY. 55 
numbers of other species are found amongst the sand and 
debris, being easily picked out under the microscope. 
Professor Herdman has again also added to the record 
several species taken from the branchial sacs of Ascidians, 
and it 1s probable that still further additions to the list of 
parasitic species will be made from the same source, this 
branch of the subject not having been specially dealt with 
hitherto. 
The five species new to Britain are as follows :— 
Pontella kroyert, Brady. 
Giardella callianasse, Canu. 
Lichomolqus albens, Thorell. 
Cymbasoma rigidum, Thompson. 
Lernea branchialis, Linn. 
Two night tow-nettings from Puffin Island contained 
single specimens of Caligus rapax, a parasitic species 
recorded by Dr. Byerley as occurring upon the Sapphirine 
Gurnard, but not since taken. Like the Trebius caudatus, 
alluded to in the last report, it seems probable that this 
species 1s a free swimmer at night only. 
Mr. Rutherford, the curator of the Puffin Island Bio- 
logical Station, has continued to send tow-nettings taken 
at various localities near the island whenever weather 
permitted, and the majority of the newly recorded species 
have been obtained from this source; this being one of 
the many ways in which the station has proved to be of 
the greatest benefit in the investigation of our marine 
fauna and flora. 
Some of the species described for the first time in the 
last report have again been found. Cyclops (Hersiliodes) 
puff, has occurred sparingly, and Professor Herdman 
has found Lichomolgus sabelle again, attached to its host, 
the Sabella, this time in the sand near the landing place 
at Puffin Island. 
