84 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 



description in the hope of finding more specimens. Still 

 more recently I have found in the shells of the Pecten 

 maximus a large Liclwmolgus herein described as LicJio- 

 molgus maximus. It is probable that the examination of 

 other mollusca obtained when dredging may lead to the 

 discovery of further new species of parasitic Copepoda. 

 A closely allied species to the tw^o last mentioned, Sahel- 

 lipliilus sarsii, Claparede, was sent to me by Mr. Chadwick, 

 adherent to the tentacles of a species of Sabella collected 

 on the Beaumaris shore. I have since found it attached 

 to the same host around Puffin Island and think it 

 probable that although apparently hitherto unrecorded 

 elsewhere in British waters, it only requires looking for. 



As a preservative fluid for Copepoda I have always 

 found a mixture composed of equal parts of Alcohol, 

 Water and Glycerine with 1 per cent, of Carbolic Acid 

 most useful. Specimens may be transferred direct to it 

 from sea water and can be so preserved for any desired 

 period of time, to be mounted direct without further pre- 

 paration in either Glycerine Jelly or Farrants Medium. 

 I can confirm the value of Canon Norman's " excellent 

 device " for capturing Copepoda and other small Crustacea 

 while alive from freshly dredged material as given by 

 Mr. A. 0. Walker, F.L.S. (Eeport on the Higher Crus- 

 tacea of Liverpool Bay taken in 1889) Fauna of Liverpool 

 Bay, Eeport III, p. 239, 1892, many rare Copepoda 

 having come to me through this means. Recently I have 

 employed a still more exhaustive method with the greatest 

 advantage, particularly when as is often the case material 

 or dredged mud or sand requires to be kept a considerable 

 time before it can be examined, viz., the dredged material 

 is washed through a coarse sieve into a finely meshed 

 silk bag into which a running stream of water from a tap 

 is allowed to fall. By careful kneading with the hands 



