On Rhopalocera from Brazil. 165 



does not appear to have been recognized in England. It 

 may perhaps he found in the midland and eastern counties 

 (Trent, Oase, Cum, &c), where the bream-flat is known to 

 occur. 



It seems scarcely necessary to compare the hybrid bream 

 and rudd with the well-known bream and roach hybrid 

 {Abramis bramax Leuciscus rutilus), originally described 

 under the name Abramis buggenhagii, which is at once 

 distinguished by the more elongate body and the nearly 

 horizontal or slightly oblique mouth. Thompson's record of 

 A. buggenhagii from near Belfast (Nat. Hist. Ireland, iv. 

 p. 137) evidently refers to one of the hybrid bream and rudd 

 described above. 



EXPLANATION OF THE PLATES. 

 Plate VIL 



Abramis bramax Leuciscus erythrophthahnus. 



Plate VIII. 

 Abramis blicca X Leuciscus crythrophthalmus. 



XVII.— The Collections of William John Burchell, D.C.L., 

 in the Hope Department, Oxford University Museum. 



IV. On the Bepidoptera Rhopalocera collected by W. J. 

 Burchell in Brazil, 1825-1830. By J. C. Moulton 

 of Magdalen College, Oxford. 



[Continued from ser. 8, vol. i. p. 42.] 



VI. Nympkalinj*:. 



Mr. J. C. MOULTON, of Magdalen College, Oxford, has at 

 my suggestion continued Miss Cora B. Sanders's valuable 

 account of the Brazilian Rhopalocera in the Burchell Collec- 

 tion. In our attempts to solve the numerous difficulties 

 which have arisen I have had abundant evidence of the skill 

 and untiring care which he has devoted to this most important 

 and interesting work. E. B. FouLTON. 



The following paper forms the continuation of the valuable 

 publications by Miss Cora B. Sanders, ending with No. V. 



