Ivii 



Eudolf von Willemdes-Suhm,* naturalist to the 'Challenger' 

 Expedition (by whom a very interesting paper containing new 

 forms of Crustacea was presented to the Linnean Society in the 

 preceding year), appears in the ' Pliilosophical Transactions ' of 

 the Eoyal Society of London for the year 1876. The discovery 

 that in Lepas the larvae pass through a Cypris state v/as made by 

 Burmeister. He, however, missed the intermediate stages, and 

 Claus discovered and illustrated the final metamorphosis into 

 the fixed barnacle. The author was fortunate in being able to trace 

 all the stages of the transformations of this wonderful creature 

 during the voyage of the ' Challenger,' — that which occurs from 

 the final Nauplius form, with six gigantic sj^ines (which = the 

 Archizoea of Dohrn) to the free-swimming spineless Cypris form, 

 and thus to the sedentary fixed condition of a small barnacle, are 

 not surpassed by the most remarkable instances of transformations 

 in the Annulosa. 



Descriptive Entomology. 



This branch of the Science has, as usual, attracted the especial 

 attention of the greater number of entomological students. To 

 so great an extent has this been carried that it would be im- 

 possible for me, in the limits of this Address, even to give a list 

 of the various memoirs and shorter articles which have appeared 

 in the different Transactions, Annals, and Magazines devoted to 

 Natural History in general, or to Entomology in particular. This 

 would also be comparatively useless labour, as the publication of 

 the ' Zoological Eecord' annually brings us a condensed summary 

 of these additions to our knowledge. I must, however, allude to 

 some of these memoirs of a more important character, either from 

 their containing valuable anatomical or other information not 

 contained in more technically descriptive papers. 



In our own country Messrs. Rye and Sharp have added various 

 new species to our lists of British Coleoptera. 



In Hymenoptera, Messrs. Cameron and Marshall have done the 

 same, the former having especially devoted his attention to the 

 Tenthredinidae and Cynipidse, as the latter has to the Ichneu- 

 monidte. 



* Dr. Willemoes-Suhm died on the 13tli of September, 1875, in his twent3'--ninth 

 yeai". He had previously to the 'Challenger' Expedition been " privat-docent " in 

 the University of Munich, under Professor von Siebold. 



I 



