108 Proceedings of the Royal Sockty of Victoria. 



I therefore revert to the earlier specific name. I have also 

 two other specimens collected by Mr. Wilson, one of which 

 exhibits very beautifully the " agglomerated " character 

 mentioned by Carter, while the otlier is only a fragment. 

 The quadriradiates mentioned by Carter are scarce and 

 inconspicuous, and I have not noticed them in the other 

 specimens. 



Localities. — Off Port Jackson (Polejaeff ) ; near Port 

 Phillip Heads (^Carter and coll. J. B. Wilson). 



58. Grantessa eriiiaceus, Carter, sp. 



Leuconia erinaceus, Cartel'. Annals and Magazine of 

 Natural History, August 1886, p. 180. 



This species is readily recognised by its external appear- 

 ance and the peculiar arrangement of the dermal oxea. The 

 flagellated chambers are elongated and radial, but very 

 irregular and branching, and they communicate with the 

 gastral cavity by unusually long exhalant canals, which 

 unite together in groups. The tubar skeleton is very 

 iriegular, but still presents clear traces of the ty])ical 

 " articulate " arrangement. Subgastral sagittal triradiates 

 are present, and the subdermal sagittal triradiates, with 

 inwardly directed basal rays, are very conspicuous. There 

 is a dense dermal cortex of much smaller triradiates, and a 

 less well-developed gastral cortex. Endogastric septa, with- 

 out spicules, are pi-esent in both my specimens, and, as Mr. 

 Carter also mentions them in his, they would seem to be 

 characteristic of the species. 



Locality. — Near Port Phillip Heads (Carter, and Station 7, 

 coll. J. B. Wilson). 



59. Grantessa intusariicidata. Carter, sp. 



Hy pograntia intusarticulata, Carter. Annals and Maga- 

 zine of iS^atural History, July 188G, )). 45. 



Hypograntia medioarticidata, Carter, loc. cit. p. 46. 



I have eleven specimens which I believe to be all referable 

 to this species, and I am strongly of opinion that Mr. Carter's 

 Hypograntia mecUoarticukUa is specifically identical with 

 his intusarticulata. The minute details of spiculation vary 

 considerable in different specimens, the most charactei'istie 

 features being the dermal ci'ust of minute oxea or " mortar 

 spicules," and the subdermal sagittal triradiates. The 



