Zoological Society. 435 



Index Test. Sup. t. 12. f. 28. Long. 1 ; lat. 1 poll. 

 Hub. Philippines. Mus. Cuming, Hanley. 



Exquisitely sculptured, but so minutely as to baffle the unassisted 

 eye. 



November 12. — Professor Owen, Vice-President, in the Chair. 



Extract of a letter from the President, the Right Hon. the Earl of 

 Derby, to the Secretary : — 



" Knowsley, Oct. 17. — A circumstance has just occurred here 

 which I cannot lielp flattering myself will tend to throw light upon 

 a matter in the history of the MacropodidcE which has been often 

 disputed. I allude to the manner in which the young animal after 

 birth attains its lodgement in the mother's pouch. 



" My superintendent tells me that one of our female Bettongias 

 was seen to part with a young one. She was observed to place her- 

 self erect in one of the angles of the place where she was confined, 

 backing as it were into the corner, and in this situation produced the 

 young one, which after its birth she took up in her fore-paws and 

 deposited in the pouch. This latter process the superintendent wit- 

 nessed himself. 



" She had received the male so lately as the 19th of September, 

 and the parturition took place on the 16th of October. We will 

 take particular notice Avhcn the young quits the pouch. 



" Of course this is not a decisive proof that all of the tribe adopt 

 the same process, yet I think we may fairly conclude from analogy 

 that they do." 



" Oct. 19. — It may be observed that the period of utero-gestation 

 is a very short one, even under a month. Something peculiar in the 

 manner of the animal placing herself in the corner was observed by 

 the person who fed her, he stopped and watched her, and thus wit- 

 nessed the birth, immediately after which she turned round to the 

 young one, and getting it up in her fore-paws, applied them to the 

 mouth of the joouch, opened it with them, and as soon as the little 

 one was de})osited she put her head in after it ; when her nose re- 

 appeared it was rather stained with blood. In five minutes she was 

 jumj)ing about the place as if nothing had happened." 



Mr. Weaver, of Birmingham, exhibited and presented to the So- 

 ciety specimens of the following insects: — Hipparchia Melampus*, 

 Leucaria Utloralis, Sperantia sylvaria, Cleodora ? 



November 26. — William Horton Lloyd, Esq., in the Chair. 



Conclusion of a paper by Sylvanus Hanley, on the new species in 

 the genus Tellina : — 



Tellina virgulata. Tel. testd T. Donacinse similUmd, sed pan- 

 tulum angustiore, striisque exUioribus ornutd ; eaius intusque al- 



* Taken on the mountains of Perthshire, about 3000 feet above the level 

 of the sea. 



