SPONGES. KALLMANN 



19: 



Alicroscleres. — 



(i.) Larger chelae, 15-19 >< long. Usually their "palms" 

 as seen in profile, are parallel to the shaft or slightly 

 deflected inwards, 

 (ii.) Contort cheUe, 7-10 \i. 

 (iii.) Toxa: observed 

 lengths, 45-370 V- 

 This variety agrees with the 

 tvpical in possessing clavate 

 acanthostyli, but no mention of 

 tylostylote smooth spicules in 

 the latter occurs in Carter's 

 description. 



Loc. — Western Australia 

 (Austr. Mus. Coll.). 



Rhaphidophlus tvpicus, var. 

 BREVISPIN'US, Leudenfeld. 

 (Fig. 38a.) 

 Whilst the agreement between 

 this variety and the preceding — 

 \ ar. geniituis — is not so perfect 

 that one can with certainty 

 assert their identity, yet it has 

 been found impossible to estab- 

 lish any wholly satisfactory 

 points of difference. Seeing, 

 however, that the present sponge 

 has already been described as a 

 distinct species and is accord- 

 ingly already in possession of a 

 hame, and since, moreover, it is 

 known only from a locality 

 widely distant from that of the 

 other, no objection can be raised 

 if, for the present, and until 

 more and better material from 

 various localities is available it 

 is retained as an independent 

 variety. The material which I 

 have at my disposal consists of 

 one small imperfect specimen, 

 together with a small piece 

 derived from a British Museum 

 example labelled TJialassocicii- 

 di-on brevispina. The former 

 basis of Whitelegge's short account. The original descrip- 

 tion speaks of the sponges of this variety as "large branched 



Fig. 38a— i?. L var. brevispi 

 nns. a Principal styli. b Aux- 

 iliary styli. c Special dermal 

 styli. d Acanthostyli. e Larger 

 chela. 



is that which formed the 



