SPONGBLIA. 209 



p. 150, second line from below). But iu all other places it is named lobosa. 



1 take the former to be a misprint. 



This variety seems to be particularly often inhabited by Stephanocyphus 

 mirahilis. Allman, a Hydroid, the perisarc of which was erroneously regarded 

 as an essential part of the sponge by O. 8chmidt, who based his species 

 Spongelia fistularis on the presence of these perisarc-tubes. 



Geographical Distribution. — Adriatic {F. E. Schulze). Spalato, Lesina, 

 Lissa, Dalmatian coast (0. ScJimidt). North Atlantic ('■Porcupine'). 



South coast of Australia: Port Phillip, V. (Lendenfeld). East coast of 

 Australia : Port Jackson, N. S. W. (Ramsay, Lendenfeld). 



Spongelia ramsayi, n. sp. 



Irregular, meandrically-folded lamellar sponges, which attain a maximum 

 diameter of 140 millim. The sponge is very hard. The oscula, which measure 



2 millim. in diameter, are situated on one face only of the lamella. 



The main fibres of the skeleton are very knotty and charged with sand-grains, 

 which are on an average 0-25 millim. in size ; the connecting- fibres contain 

 scattered foreign bodies, and are 0-1 millim thick. 



GrEOGBAPHiCAL DISTRIBUTION. — Indian Ocean, Mauritius (Canterbury Mu- 

 seum, Christchurch, N. Z., coll.). 



New Zealand (Lendenfeld), Chatham Islands (Parher), 



Spongelia cacos, n. sp. 



The sponge consists of a mass of irregularly curved, digitate processes, which 

 are on an average 20 millim. thick. 



The skeleton is composed of a network of smooth fibres 0-16 millim. thick, 

 which are charged with abundant small foreign bodies. The meshes of the 

 network are irregular or oval, on an average 1*5 millim. wide. 



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

 N. S. W. (Ramsay). 



Spongelia saguni) n. sp. 



Perfectly smooth incrusting sponges, with a lobose outline, attaining a 

 thickness of 3 millim. and a horizontal diameter of 50 millim. The living 

 sponge is brick-red, and has a peculiar lustre, which makes it appear very 

 similar to certain Chondrosidse. 



The skeleton consists of a network of fibres charged with particulary large 



p 



