CHALINISSA, 87 



Oscula large and numerous, but not prominent. Spicules oxea, 

 numerous and large in the fibres, and also in the soft parts of 

 the sponge. 



Chalinissa elongata, Lendenfeld. 



Chalinissa elongata, E. v. Lendenfeld, " Die Chalineen des australischen Ge- 

 bietes," Zoologische Jahrbiicher (Spengel), Band ii. Seite 774 (1887). 



The sponge consists of a bundle of few, straight, slender and erect branches, 

 which are 700 millim. long and 20 millira. thick. This bundle is attached by 

 a peduncle, 100 millim. long. SJceleton-net with meshes 0"26 millim. wide 

 and fibres 0-07 millira. thick, Spicules forming a distinct axial string in the 

 fibres, are particularly regularly longitudinally situated : oxea, 0'0S3 millim.. 

 long and 0"00o millim. thick. 



Geographical Disteibution. — East coast of Australia : Illawarra, N. S. "W.. 

 {Mamsay). 



Chalinissa elegans, Lendenfeld. 



Chalinissa elegans, E. v. Lendenfeld, " Die Chalineen des australischen Gebietes," 

 Zoologische Jahrbiicher (Spengel), Band ii. Seite 773 (1887). 



A bundle of digitate processes 20 millim. thick and 100 millim. long, which 

 are attached to a rather flattened peduncle 150 millim. long, 20 millim. broad, 

 and 12 millim. thick. The whole sponge attains a length of 400 millim. and 

 a breadth of 150 millim. It has broad and low protuberances on the surface. 

 Oscula large and pretty abundant. Sl-eleton-net irregular, with meshes 0-4 

 millim. wide and main fibres 0*1 millim. thick. Sjiicules : oxea, slightly curved, 

 0-06 millim. long and 0-003 miUim. thick. 



Geoqeaphical Disteibution. — East coast of Australia : Broughton Islands,, 

 Q. ; Illawarra, N. S. W. (Ramsay). 



Chalinissa communis, Lendenfeld. 



(Plate VIU.) 



Chalinissa communis, E. v. Lendenfeld, " Die Chalineen des australischen Ge- 

 bietes," Zoologische Jahrbiicher (Spengel), Band ii. Seite 772 (1887). 



Very large dendritic sponges with erect flattened digitate branches, and a 

 distinct short peduncle. The sponge attains a height of 1000 millim. and a 

 breadth of 500 millim. ; the branches measure 8 millim. in thickness. In 

 large specimens the peduncle measures 50 millim. in length and 25 millim. in 



