Si/iiojJ'sis of f/tc A a,>ifn(lla)i Cdlcarea Heterocfelit. 97 



28. Anainixilla torresi, PolejaefF. 



Aiiainixilla torresi, Polejaeff. Report on the Calcarea of 

 the Challenoer Expedition, p. 50. 



I liave seen no specimen of this s[)onge except a portion 

 of the type from the British Museum. 



Locality. — Torres Straits (Polejaeff). 



29. Leucandra australiensis, Cartel-, sp. 



Leuconia Jistulosa, var. australiensis, Carter. Annals 

 and Magazine of Natural History, August J 886, p. 127. 



There is one specimen in the collection, belonging to the 

 National Museum, which closely resembles in external 

 characters and spiculation that described by Mr. Carter. 

 The sleiiclerness of the radiate spicules gives to the sponge 

 a soft and yielding texture, while the dermal surface is 

 densely hispid from the long, slender, projecting oxea. At 

 first sight the specimen looks like a large example of 

 Grantessa hirsuta, but it differs markedly in the arrange- 

 ment of the canal system and in the absence of the 

 subderinal sagittal triradiates. The chambers are large and 

 irregularly sac-shaped, averaging say about 0'3 by 0"1 mm. 

 (but very variable) ; not arranged radially around the 

 central gastral cavity of the sponge, but around wide 

 exhalant canals which penetrate the thickness of the wall of 

 the sponge and are, like the gastral cavity itself, echinated 

 by the apical ravs of quadriradiate spicules. 



Locality. — Near Port Phillip Heads (Carter, and Station 1 4, 

 coll. J. B. Wilson).- 



30. Leucandra alcicornis, Gray, sp. 



Aphroceyas alcicornis, Gray. Proceedings of the Zoolog- 

 ical Society of London, 1858, p. 114. 



Leucandra alcicornis, Hseckel. Die Kalkschwamme, 

 Vol. II, p. 184. 



I have not j^et had an opportunity of examining this 

 widely distributed and very remarkable species. 



Loccdity. — -Bass Straits (Hteckel). Also recorded from 

 various localities in the Pacific and Indian Oceans and from 

 the Cape (^vide Hreckel). 



31. Leucandra catcqjhracta, Hseckel. 



Leucandra cataphracta, Hseckel. Die Kalkschwamme, 

 Vol. II, p. 203. 



