BY R. VON LENDENFELD, PH.D. 17 



times as long as broad at the base, regularly conic. The surface 

 of the central sphere does not exist, the spines stand so close that 

 their biases touch each other. 



Locality : South Coast of Australia, Port Phillip. (Von Len- 

 denfeld.) Laminarian Zone. 



56. SPECIES. CHONDRILLA AUSTRALIENSIS. Carter (1). 



Incrusting or self-supporting, and spreading horizontally, flat, 

 cakeshaped, lobed, of a dirty yellow or buff colour. Surface 

 smooth, slippery, glistening consistence, semi-elastic, subcartila- 

 ginous. Tolerably tough. Vents numerous, small, of difterent 

 sizes in groups or terminal on the lobes. Cortex translucent. 



Spicules of two kinds. 1. With short, sharp conic spines, 

 taking up the whole surface of the sphere. 2. With slender, 

 sometimes terminally bifid or trifled spines, with serrate side 

 These two kinds of spicules are most numerous towards the outer 

 surface. The short spined spicules measure 0-026 mm., the others 

 0"026 mm. across. 



Localitj : East Coast of Australia, Port Jackson. 



Note. — I have dredged in Port Jackson numerous specimens of 

 this Sponge. It appears to be very abundant. 



57. SPECIES CHONDRILLA PAPILLATA. Nov. spec. Fig. 13—16. 



This species is characterized by the vei-y peculiar roughness of 

 the surface. The Sponge is lobate and massive, not lamellar or 

 globular as the other species generally. It appears somewhat like 

 a hornsponge (fig. 1.3), in consequence of its erect shape and the 

 papillse on its surface. 



It consists of a central mass from which cylindrical or slightly 

 flattened processes extend upwards. The whole Sponge attains 

 the great diameter of 60 mm. (height.) The processes measure 

 10 — 14 mm. in diameter. 



The Oscula are situated terminally on these finger-shaped 

 processes. They are circular and have a diameter of about 2 mm. 

 There exist no " chimneys " around them. 



(1) //. Carter. On two new species of Gumminje. Annals and Maga- 

 zine of Natural History, IV, Series. Vol. XII., p. 23, pi. I., fig. 10—14, 16. 

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