30 THE ZOOLOGIST. 



SCIENTIFIC SOCIETIES. 



LiNNEAN Society of London. 



November 18, 1886. — William Oarruthers, F.R, S., President, in the 

 chair. 



Mr. Henrj Bury was elected a Fellow of the Society. 



Mr. A. D. Michael exhibited living specimens and preparations of an 

 Argas, received from Mrs. Crawford, the State Entomologist of Adelaide, 

 Australia. These appear to be identical with the much-dreaded Argas 

 persicus, Fischer, the bite of which is supposed to cause madness and 

 death. 



The fifth and concluding part of the Rev. A. E. Eaton's Monograph of 

 the Recent Fpheraeridte, or Mayflies, was read in abstract. He states that 

 in his entire memoir 55 genera and 270 species have been characterized, 

 in addition to eleven nameless nymphs and nineteen species named by 

 other authors, which cannot now be classified exactly. Amongst them five 

 genera and sixty-eight species may be reckoned new to Science, and thirteen 

 of the older species have had to be renamed. The author gives a revised 

 summary of the groups, series, sections, and genera, a full description of 

 the figures in the plates, and complete index to the species, and a contents 

 generally of the volume. 



Besides the foregoing zoological contributions a number of interesting 

 exhibitions and papers of a botanical character were brought forward and 

 discussed. 



December 2, 1886. — William Oarruthers, F.R.S., President, in the 

 chair. 



The following gentlemen were elected Fellows of the Society, viz. : — 

 Dr. Robert von Lendenfeld, Messrs. J. W. Willis Bund, Arthur Dendy, 

 Anthony Gepp, Kutaro Ito, F. Krause, Francis Molesworth Lascelles, 

 Frederick Sander, John Samson, Harry Sanford Burton, Arthur Warwick 

 Sutton, and Charles W. Wilson. Mr. George Sim was elected an 

 Associate. 



Dr. Day read a paper on the Lochleven Trout, which is the form that 

 has been utilized by Sir James Maitland at Howietovvn, where the elevation 

 is similar to that of their original home from which it is about twenty-five 

 miles distant. These fish are known by their numerous coecal appendages, 

 and up to their fourth or fifth year they are of a silvery grey with black, 

 but no red spots ; subsequently they become of a golden purple, with 

 numerous black and red spots. Undergrown ones take on the colour of 

 the Burn-Trout. Remove these fish to a new locality, and they assume 



