NOTES AND EXHIBITS. 417 



Mr. Whittell exhibited specimens of a caterpillar of the family 

 Cossidce found at Mount Wingen, in which the original tissues 

 of the animal had become replaced by the mycelium of a species 

 of S]?hoeria. 



Mr. Littlejohn exhibited a large specimen of Gastrotohevs 

 hiaculeatus from Torres Straits. 



Dr. Cox exhibited a large nodule of ironstone with a remark- 

 ably polished surface, and stated that large numbers of similar 

 appearance were observed scattered over the surface of the 

 ground in the Liverpool Plains district. They seemed to be hard 

 concretionary nodules freed by the weathering away of the softer 

 rock matrix in which they had been originally enclosed. 



Dr. Cox also exhibited a remarkable blenny of the genus 

 Cristicejys from Broken Bay. 



