242 Proceedings of the Royal Society of Victoria. 



Pachychalina tenel/a, Lendeufeld, sp. 



Chalinopora tejiella, Lendeufeld, Zoologischer Jahrbiiclier, 

 vol. ii., p. 765 (1887). 



The sponge is irregularly massive, sessile, with prominent vents 

 and smooth but uneven surface. The texture in spirit is very 

 soft, spongy and tender, and the colour pale yellow. 



Skeleton, a lax and very irregular network of slender, usually 

 multispicular fibres, with numerous spicules scattered between. 



Spicules, very slender, slightly curved, gradually sharp- 

 pointed oxea, measuring about 0"1 by 0-0027 mm. 



Yon Lendenfeld's type also comes from Port Phillip, wliere the 

 species is common. 



R.N. 660; 733 (x, B ; "cream buff"); 755 (s. 5; "wax 

 yellow"); 756 (s. 5; "wax yellow"); 767 (Sorrento Jetty; "wax 

 yellow"); 774 (Sori-ento Jetty ; "sponge grey"*); 783 (Sorrento 

 Jetty, " wax yellow "). 



PachycJialina In'la/nella/a, (Lamarck ?) Carter, sp. 



Cavochaliiia oilaniellata, Carter, A.M.N.H., Octobei-, 1885, 

 p. 287. 



Placochaliiia pedii?iciilata, Lendeufeld, Cat. Spong. Aust. Mus., 

 p. 90. 



This remarkable sponge usually has a very characteristic 

 external appearance, being leathery and thinly flabellate, and 

 often growing out into two wing-like expansions from a common 

 peduncle. The skeleton network is close-meshed, with multi- 

 spicular fibres and many spicules scattered between ; the meshes 

 vary from quite irregular in the interior to rectangular towards 

 the surface. The spicules are short oxea, measuring about 0'54 

 by 0-004 mm. 



R.X. 741 (x, B; " sponge grey '■) ; 1008 (xB); 1143 (x). 



B.M. d. 73 {''Cavochaliiia Mlamellata" Reg. 86-12-15-186). 



Genus Chaliiia, Grant. 



Form variou.s, not tubular. Skeleton reticulation rectangulai-, 

 with much spongin and few spicules. 



* Tlie grey tint Is due to the presence of foreign matter in the form of immense numbers 

 of parasitic worms, Crustacea, etc. 



