BY R. VON LENDENFELD, PH.D. 15 



in this way the star shaped spicule is produced. The spines of 

 this may be smooth or roughened, and serrated by secundary 

 very small spines extending centrifugally. 



If the central solid sphere attains a large size and the spines 

 become small then the shape of a spiny ball is attained, which 

 may be more like a Datura fruit or a Swiss " Morgenstern," 

 according to whether the spines are numerous and slender or not 

 numerous, short and thick. 



25. GENUS. CHONDRILLA. 0. Schmidt (1). 



Chondrissinfe without subdermal cavities. The commencement 

 of the inhalent canal system consists of a great number of parallel 

 radial canals leading from the inhalent pores direct into tangental 

 canals which collect the water and from which the inhalent system 

 of the Pulpa originates. 



Although this Genus is at present the only one of the Sub-family, 

 still I give this diagnosis for the purpose of showing on what 

 principles I consider other genera might be established. 



55. SPECIES. CHONDRILLA SECUNDA. Nov. spec. Fig. 10-12. 



I name this Sponge the second to commemorate the fact that 

 it was of the thousands of different forms collected by me in 

 Australia the second specimen I found. 



Our Sponge resembles in outer appearance a lamellar or irregular 

 bulbous mass, the lamellar shape is by far the most frequent. The 

 Lamellae are not of uniform thickness throughout ; they attain an 

 average size of 30 x 60 mm. and more, and are in the thickest part 

 12 mm., in diameter. In places these lamellae are very thin and 

 in fact they may be pierced in certain places so as to present a 

 sieve-like appearance. The bulbous variety of this species is not 

 large ; it attains a diameter of 25-35 mm. It is attached to 

 stones etc., by a small basis only. Also the more frequent 

 lamellar form is attached to stones by small parts of its lower 

 surface only. I obtained most of my specimens adrift The 



(1) 0. Schmidt, Die Spongien des Adriatischen Meeres. Seite 38, 



