TEMPORABY PREFACE. 



About 70 species are described in the present part (Part II, Vol. II), a smaller 

 number than in the previous part, but the coloration in some is not less beautiful than in 

 those previously depicted. 



For the adequate rendering of the coloured plates the Carnegie Trust gave a grant 

 of £200, and the Royal Society £100 for the previous part. I cannot too gratefully 

 acknowledge the liberality and courtesy of both of these important bodies. 



To Dr. R. Dohrn of Naples, Dr. Allen of the Plymouth Marine Laboratory, 

 Dr. Goodrich of Oxford, Canon Norman, Dr. Haddon, and Dr. Scharff, I am under 

 obligations for valued aid in connection with specimens ; whilst to Mr. Kappel of the 

 Linnean Society, Mr. White of the Royal Society, Mr. Waterhouse of the Zoological 

 Society, Mr. Maitland Anderson and Mr. Smith of the University Library, St. Andrews, 

 and to many fellow- workers in the department, I am equally indebted for aid in 

 connection with the literature of the subject. 



I have also to thank Miss Walker for her continued and valued labours with pencil 

 and brush. 



Mr. Hopkinson, the Secretary of the Ray Society, has been indefatigable in the 

 correction of proofs, in kindly verifying certain references, and in various ways giving 

 advice and help. 



W. C. M. 



GtAtty Marine Laboratory, 



St. Andrews; 



September 1st, 1910. 



