258 Proceedings of the Royal Society of Victoria. 



Tedania digitafa., Schmidt, sp. 



Reniera digitata, Schmidt, Spong. Adriat. Meer., p. 75. 



Tedaiiia digitata, Carter, A.M.N.H., January, 1886, p. 52. 



Tedania digitata, var. verrucosa, Carter, A.M.N.H., January, 

 1886, p. 53. 



Tedania digitata, Ridley and Dendy, Challenger Monaxonida, 

 p. 51 (where other references are given). 



This widely distibuted species is very common in the neighbour- 

 hood of Port Phillip Heads, there being no less than thirty-four 

 separate specimens in the collection. The external form is 

 massive, lobose or digitate ; the vents usually conspicuous, small 

 or large : the surface smooth but generally uneven ; the texture 

 soft and spongy ] the colour in spirit nearly white, and in life 

 orange. In all of the thirty-four specimens the ends of the 

 diactinal megascleres are microspined, a character by which the 

 species is readily distinguished from the following one. 



The life-colours of fifteen specimens are recorded, ten of these 

 are stated to be some shade of oi'ange, four are some shade of 

 yellow, and one is " buft-brown with a tinge of flesh-colour," so 

 that the variation is seen to be but slight. 



The stations recorded are 1, 3, 5, 6, 8, 9, 10, x A, x C, Sorrento 

 Jetty, Sorrento Reef, Queenscliff Jetty. Nine specimens came 

 from Sorrento Jetty. 



R.iY. 320; 455; 52G ; 563; 568; 569; 692; 715; 720; 764; 

 770; 776; 780; 782; 784; 786A ; 789; 796; 802; 814; 834; 

 850; 866; 871; 892; 962; 971; 975; 991; 992; 1069; 1093; 

 1105; 1106. 



B.Af. d. 109 (''Tedania digitata;' Reg. 86-12-15-439); d. 110 

 (^" Tedania digitata, var. verrucosa, Reg. 86-12-15-432). 



Tedania coniniixta, Ridley and Dendy. 



Tedania commixta, Ridley and Dendy, Challenger Monaxonida, 

 p. 52, pi. xxiii., fig. 9. 



This species was represented by a single specimen in the 

 Challenger collection, from Bass Straits. Mr. Wilson's collection 

 contains seventeen examples of it. The sponge is massive and 

 usually contains much sand. The coloui- in life is orange, pink 

 or brown, as shown l)y Mr. "Wilson's records of twelve specimens. 



