458 



Victoria and South Australia, also known as the brown- 

 Ijanded snake of New South Wales; the specimen was of the 

 black variety, which had also been found at the southern 

 extremity of Yorke Peninsula, South Australia, and on some 

 of the islands in Spencer Gulf ; formerly recorded from Aus- 

 tralia and Tasmania; length, 50 in.; Tiliqua nigrolutea, the 

 black and yellow blue-tongued lizard, formerly recorded from 

 South Australia and Tasmania; Amphiholurus angulifer, 

 formerly recorded from south-eastern Australia and Tas- 

 mania. With respect to these exhibits Mr. Howchin, F.G.S., 

 said that they were interesting as bearing upon the question 

 of the date of subsidence of the land formerly connecting 

 Tasmania with Australia. Mr. Zietz also exhibited a small 

 spider standing on a twig with its legs gathered together, so 

 that he perfectly simulated a leaf stalk from which the leaf 

 had been broken. 



Paper. — ''Additions to South Australian Orchidese," by 

 R. S. Rogers, M.A., M.D. 



Ordinary Meeting, August 14, 1913. 



The President (J. C. Verco, M.D., F.R.C.S.) in the 

 chair. 



Exhibits. — Dr. A. M. Morgan exhibited a lightning 

 tube (fulgurite) showing the effects of lightning striking sand 

 at the Reedbeds, near Adelaide. Mr. J. G. O. Tepper ex- 

 hibited some stereoscopic views of forests and parks at Greitz, 

 'Central Germany; also two letters bearing the signatures of 

 Lord Kelvin and Sir William Crookes. Mr. A. M. Lea ex- 

 hibited four specimens of the Giant Atlas Moth of Queensland, 

 with eggs, larvse, and pupae of the same; also some curious 

 gall-like growths on apple-trees from Mount Lofty, caused 

 by a bacterium, and known as crown gall. The President 

 exhibited a series of the Polyzoon, Gellefora verticalis, (i) 

 Maplestone, Proceedings Royal Society of Victoria, vol. xxiii. 

 (N.S.), part 1, p. 39, plates vii., viii., ix. They were co-types 

 of specimens which were supplied to Mr. Maplestone by Dr. 

 Verco. The exhibit was a series of seven examples from early 

 to senile stages of growth, showing how the secondary flanges 

 are added to the primary, and how they increase in thickness 

 by the superposition of new zooecia laid back to back; so that 

 when the polyzoa dry they are liable to split along this plane. 

 He also showed a number of species of the genus Mitra to 

 demonstrate the beauty of the ornament and sculpture in this 

 group of shells. 



(1) These two exhibits were afterwards presented to the South 

 Australian Museum. 



