CHALINOPOEA. — CLADOCHALINA. 85 



Massive sponges, with irregular protuberances ; 120 millim. long and 80 

 millim. broad. Oscula scattered. Sponge very soft. Sheleton-net rather 

 irregular. Spicules: oxea, 0-14 millim. long and 0-004 millim. thick. 



G-EOGRAPHicAL DISTRIBUTION. — South and East coasts of Australia : Port 

 Phillip, V. {Lendenfeld) ; Port Jackson, N. S. W. {Rummy). 



Chalinopora lamella, Lendenfeld. 



Chalinopora lamella, E. v. Lendenfeld, " Die Chalineen des australischen Ge- 

 bietes," Zoologische Jahrbiicher (Spengel), Band ii. Seite 7G7 (1887). 



This sponge forms a thin, pedunculate, flabellit'orm lamella, 120 millim. high, 

 60 millim. broad, and 10 millim. thick, with smooth faces and large lobes on 

 the free margin. Oscula marginal. Slceleton-nat with narrow meshes. 

 Spicules: oxystrongyla, sharp-pointed, numerous, 0-1 1 millim. long and 0-004 

 millim. thick. 



Geographical Distribution. — East coast of Australia : Port Jackson, 

 N. S. W. (Ramsay). 



Chalinopora siphonopsis, Lendenfeld. 



Clialinopora siplwnopsis, E. v. Lendenfeld, " Die Chalineen des australischen 

 Gebietes," Zoologische Jahrbiicher (Spengel), Band ii. Seite 767 (1887). 



Sponge massive, lobose, 160 millim. long and 120 millim. broad. Oscula' 

 situated terminally on the lobes. Sheleton-net with fine meshes. Spicules : 

 styli, 0-14 milUm. long and 0-003 millim. thick, not very abundant. 



Geographical Distribution. — East coast of Australia : Port Jackson,. 

 N. S. W. {Lendenfeld). 



Genus CLADOCHALINA. 



Lobose and branched CacochalininEe, with abundant small 

 spicules and narrow meshes of the skeleton-net. 



Cladochalina euplax, Lendenfeld. 



Cladoclialina euplax, E. v. Lendenfeld, " Die Chalineen des australischen Ge- 

 bietes," Zoologische Jahrbucher (Spengel), Band ii. Seite 769 (1887). 



Massive, lobose, lamellar sponges, which attain a breadth of 80 millim. and 

 a thickness of 12 millim. The oscula are confined to one side : they are 



