118 EECORDS OF THE AUSTRALIAN MUSEUM. 



EuspoNGiA OFFICINALIS, var. DURA, Lendenfeld. 



The dermal membrane is yellowish-cream, and the ground sub- 

 stance of a yellowish tint. 



EuSPONGIA PIKEI, Hyatt, sp. 

 This species does not present any distinctive colouration. 



HiPPOSPONGiA EQUINA, var. ELASTICA, Lenclenjeld. 



The dermal membrane is of a pale cream colour, and the ground 

 substance light cinnamon-brown. 



AuLENA GIGANTBA, var. MICROPORA, Lsndenjeld. 

 A single branch of this species was obtained at Maroubra Bay. 

 It is nearly 600 mm. in length and 50 mm. in diameter. 



CORRECTIONS. 



See p. 60, line 11 — -for "planking" read "planting." 

 ,, %^ — after "Pachychalina, Schmidt" insert subheading: 



Pachychalina aueantiaca, Lendenfeld. 

 (Plate X., fig. 3). 

 8*2, line 'd—for "conultw" read "conuli." 



83, line 30— /or "Size— 13 to 13 mm." read "Size— 013 



to 016 mm." 

 85, line 7 — for "oscular" read "oscula." 



95, line 14— >r "fig. 1," read "fig. 2." 



99, line \?>—for "pi. xii." read "pi. xiii." 



