ON THE ZOOLOGICAL STATION AT NAPLES. 263 



they are not stopped in their development just at the right moment. 

 Therefore algsa preserved in alcohol are much easier to study and dissect. 



At the same time as I sketched the Barbadian algse of the Dictyota 

 family I had fresh dictyota brought to me from the Bay of Naples, so as 

 to be able to compare the structure of these plants with the West Indian 

 species. The Barbadian dictyota and those of the West Indies in general 

 are not very well known, the species being numerous and somewhat mixed 

 up one with another ; it will therefore be an interesting task to study 

 them more perfectly and try to arrive at a system of classifying there 

 more easily, which is not a slight task. 



I asked at Naples for rare species of the Golfe Algae, principally Rho- 

 dophycse, and had brought me some specimens of Chrysymenia ventricosa 

 and Platoma cyclocolpa or Nemastoma cyclocolpa. Thus I was able to 

 continue my study of the algse of the Bay of Naples at the same time that 

 I worked at my principal object of study. It is a good thing to have 

 plenty of work on hand, for it would be too monotonous to work all the 

 time on dry matez'ial without getting a few fresh algge now and then. 

 The sea was often rough and stormy, as it generally is in winter at 

 Naples, and the fresh material could not always be reached, so I was 

 often very glad to have my own material to fall back upon when the other 

 was wanting. 



I once more thank the British Association for the permission granted 

 me to work at the Association Table : it has been a great boon to me, 

 and I hope that my work will turn out to be satisfactory to the 

 algological world. It is a difficult one, but I am greatly helped and 

 encouraged by Monsieur Bornet, without whose aid I would not have 

 had the courage to undertake such a task. 



Report on the Occujjation of the Table during April and May 1902. 



d. On the Copepod Suh-family JEtidiirKP, with a proposed Revision of the 

 Classijicatton. By E. Noekis Wolfenden, M.B. Cantab., F.Z.S. 



The Faroe Channel is especially rich, amongst Copepods, in examples 

 of the sub-family jEtidiin<x. Several of these are new species, and during 

 the author's plankton investigations in this region, extending over a 

 period of three years, he has met with several forms of great interest. 

 While the author's results remain as yet unpublished, pending the con- 

 clusion of his work, Professor G. O. Sars has lately published an important 

 work dealing with the Crustacean fauna of Norway, in which he 

 describes some of these new Copepod forms. It appeared to the author 

 that the large sub-family jEtidiincn required revision, and through the 

 courtesy of the Council of the British Association and of Professor Dohrn 

 he was in May 1902 allowed the privilege of occupying the Association 

 Table at the Naples Zoological Station, where he had the opportunity of 

 examining in detail the Copepod preparations made by Dr. Giesbrecht and 

 comparing with his own Faroe collections. To Professor G. B. Howes 

 and Drs. Anton Dohrn, Eisig, and Giesbrecht the author's warmest thanks 

 are due. 



The character of the sub-family ^tidiince are sufficiently well set 

 forth in Dr. Giesbrecht's great work {' Fauna ii. Flora Neapel '). 



It is, however, evident that the segmentation of the feet cannot be 

 employed as a definite factor in the classification of genera. For instance 

 in the genus ^tideus which comprises the well-known species JStideus 



