TRANSACTIONS OF SECTION D. 691 



white butterfly witli such a bordei* becomes an extremely conspicuous object, and 

 this appearance of Mylothrig is mimicked, more or less perfectly, by species from 

 a number of Pierine genera, such as Nepherojiia, Belenois, Callosune, &c. This is 

 usually explained as an example of true Batesian mimicry, but it is, perhaps, more 

 probable that the Tievina are very largely a specially protected group, many of 

 the genera of which, so to speak, combine their advertisements, and thus share 

 between them the loss of life which must necessarily ensue during the education 

 of each generation of their enemies. 



I think sufficient evidence has been brought forward to show that the theory 

 of mimicry, or rather of common warning (synaposematic) colours, which will 

 always be associated with the name of Fritz Miiller, may claim abundant examples 

 in Africa as well as in the other parts of the world in which it has already been 

 proved to hold. 



10. On the Surface Plankton of the JVoi'th Atlantic. 

 By W. Garstang, M.A. 



11. Remarks on Branchipus stagnalis. By A. Halkett. 



12. Report on Zoological Blbliograjyhy and Fuhlication. 

 See Reports, p. .359. 



13. Report on (he Index (/enerum et specierum Animalium. 

 See Reports, p. 367. 



14. Report on the Zoology and Botany of the West Indian Islands. 



See Reports, p. 369. 



15. Interim Report on Bird Migration in Great Britain and Ireland. 



See Reports, p. 362. 



IC. Report on African Lake Fauna. — See Reports, p. 368. 



17. Report on the Zoology of the Sandwich Islands. 

 See Reports, p. 358. 



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