180 BRITISH SPONGES: 



Mr Montagu has endeavoured to draw a distinction between 

 his Sp. complicata and the Sp. botryoides of Ellis, — the spicula 

 of the former being, he says, not a quarter so large as those 

 belonging to the latter. But Montagu acknowledges that he 

 had never seen a specimen of Ellis's Sp. botryoides, and its 

 presumed spicula, sent to him by Mr Boys, were probably 

 those of Gi'antia compressa. And no argument derived from 

 a diversity in habit between his specimens and those figured by 

 Ellis, can be relied upon, as an examination of a very extensive 

 series of specimens has fully satisfied us. 



5. G. PULVEnuLENTA, ^^ ovate^ thick, pulveTuUnti viU 

 lous." 



Spongia ananas, var. Morifagu in Wem. Mem. ii. 97, pi. 16, fig. 3. * 

 Sp. pulverulenta, Grant in Edin. New PLil. Journ. i. 170. 

 Scypha ovata, Gray, Brit. PI. i. 358. 

 Grantia pulverulenta, Flem. Br. Anim. 525. JBellami/'s S. Devon, 



269. 

 Spongia inflata, Delia Chiaie, Anim. s. Vert. Nap. iii. p. 114, tav. 



37, fig. 16, 17. 



Hah. On corallines, rare. Devon coast, Montagu. Zetland, 

 attached to Sertularia cupressina, Fleming. 



Sponge about the eighth of an inch in height, attached by a 

 narrow base, ovate, white, the surface villous with the promi- 

 nent spicula which pomt upwards, the ox-ifice tenninal, contract- 

 ed and encircled with a close fringe of erect spicula of a sil- 

 very white colour. The spicula are of two kinds : " one of 

 these forms is a triradiate spiculum with long and very slender 

 i-ays diverging at equal angles ; the other is a very long straight 

 needle-shaped spiculum, pointed acutely at one end, and obtuse 

 at the other." Grant. 



Montagu suspects that this is his Spongia ananas, Wern. 

 Mem. ii. 96, pi. 16, fig. 1, 2, " in a more perfect state," but 

 Dr Fleming appears to consider them distinct. The following 



