374 Mr. H. J. Carter on 



specimen, wliicli came from the same neighbourhood, viz. 

 " Phillip's Island," close to " Port Western," that I have 

 given it his designation. 



Besides these there are other massive specimens of Hir- 

 cinim in Mr. Wilson's collection from Port Western, mostly 

 small, which, but for the character of their keratose tibre, 

 might be mistaken for colourless or grey Aylysince^ since they 

 present no particular shape, and, as I have before stated 

 respecting the Aplysinidaj, much experience on the spot 

 where an unlimited number of specimens can be obtained is 

 necessary to reduce the whole here as well as elsewhere to 

 their proper specific value, a task which the great number of 

 species among the Psammonemata renders as important as at 

 present it seems to be overwhelming. 



Euspongia infundihuliformis^ n. sp. 



Vase-shaped or flabellate ; infundibularly contracted to- 

 wards the base where the stem has been truncated (probably 

 by the dredge). Outer surface raised into thick, broken, sub- 

 reticulate ridges, which radiate irregularly from the base to the 

 circumference ; inner surface even. Colour light brown. 

 Surfaces (internal and external) uniformly covered with 

 minutely conulated, sinuous ridges, projecting through an epi- 

 thelial layer of nucleated circular cells, each about 2|-6000ths 

 in. in diameter, which, in its turn, rests on a soft, fleshy, 

 dermal fibro-reticulation. Pores in the interstices of the reticu- 

 lation, chiefly on the outside. Vents thickly distributed over 

 the inner side, each about l-18th in. in diameter, and for the 

 most part respectively provided with a sarcodic sphinctral 

 ring, subuniform in size and distribution, absent about the 

 lower part of the cup ; structure, although fine, very compact, 

 chiefly composed of comparatively small keratose fibres of two 

 kinds, viz. sand-cored and transparent, the former scanty and 

 branching in more or less straight lines towards the surface, 

 where they end in the conuli, the latter abundant and inter- 

 uniting the former, but so delicate that they can only be seen 

 with a microscope. Size of vasiform specimen (for there are 

 two) 5 in. high both inside and out, wall | in. thick, diameter 

 across the brim 7 in. ; stem, where it has been truncated, about 

 2 in. in diameter. 



Log. Port Western. 



Ohs. The exact height of this specimen cannot be given 

 as the stem has been cut oft'. In its dried state it is firm and 

 hard on the surface, on account of the presence of the dried 

 sarcode over its compact structure, which, if thoroughly 



