NOTES AND EXHIBITS. 607 



blind insects and other organisms inhabiting dark caves, Peri- 

 patus, and termites; and he gave a very interesting account of 

 his experiences with these animals under natural conditions. 



Mr. North sent for exhibition an instance each of " climatic " 

 and " individual " variation in New South Wales birds. The 

 former was a skin of an adult female Yellow-breasted Robin 

 (Eopsaltria australis) obtained by Mr. Thos. P. Austin, of Cob- 

 borah Station, Cobbora, in the lightly-timbered, stony scrub- 

 lands found in a portion of that neighbourhood, and nearly two 

 hundred miles in a direct line from the coast. The type of 

 Eopsaltria australis was procured near Sydney, from which the 

 present specimen may be distinguished by its being everywhere 

 paler, and by its clear yellow upper tail-coverts. " Individual " 

 variation was exhibited in the skin of an adult female Superb 

 Warbler (Malurus australis). This specimen, which is remark- 

 ably pale, was obtained by Mr. Harry Burrell at Manilla, the 

 only one observed among a number of typically plumaged birds. 

 An example of a normally plumaged skin of each species, was 

 also sent for comparison. 



Mr. W. S. Dun exhibited a specimen of Syringopora, sp.nov., 

 from the Silurian of Derrengullen Creek, Yass. This species 

 was collected by Mr. A. T. Shearsby, and is remarkable for the 

 extremely small diameter of the corallites, T Vitf inch. 



