Vlll. L.M.B.C. REPORT II. 
convenience to the Committee and a powerful incentive 
to work, but it has enabled us to make some series of 
continuous observations upon the rich fauna of that 
neighbourhood; for example, upon the Copepoda, and 
upon the Nudibranchiata and other moving Mollusca on 
the shores. 
In the former volume of reports we recorded 913 species; 
with the additional species referred to in the present 
volume, this number is now brought up to 1456. Of these 
additions twenty-one have not been previously recorded in 
British seas, and nine (a Sponge, four Copepoda, two Amphi- 
poda, a Polyzoon, and an Ascidian) are new to science. 
Several reports which it was hoped would have been 
incorporated in the present volume have not yet been 
completed, and, along with certain morphological investi- 
gations which have been commenced upon the Nudi- 
branchiata and the Tunicata and other groups, must stand 
over and form part of the subject matter of the next 
series of reports; amongst these are the Ostracoda, by 
Mr. W. S. McMillan, F.L.8., some of the Mollusca, by 
Mr. A. Leicester, and the Fishes, by Mr. T. J. Moore. 
It only remains for me to express my indebtedness and 
cordial thanks to my friends and fellow workers who have 
taken part with me in the various dredging expeditions, in 
the exploration and colonization of Putfin Island, and in 
the preparation of these reports. All our thanks are 
especially due to our honorary treasurer, Mr. Isaac C. 
Thompson, F.L.8., who has taken a large share in the 
trouble and responsibility, and upon whose careful and 
judicious management of our slender resources the success 
of the Puffin Island establishment in a great measure 
depends. 
W. A. HERDMAN. 
University College, 
Liverpool, June, 1889. 
