Report of PL PldlUp Biological Survey Committee. 139 



These prominences are from 1 to 2mm. in diameter, rather 



smaller than those of the Challenger specimens, which are 



2 to 4mm. in diameter. 

 The spicules, which are very varied in shape and size, are in 



general appearance similar to those figured by Studer 



(I.e. PL xlii, tig. 12). 

 The locality of the Challenger s])ecimens is given as Station 



320, lat. 37^ 14' S., long. 53^ 52' W. ; 600 fthms. 



(17) Clavularia australiensis (sp. nov. v. supra.) This specimen is 



growing on a piece of sponge. 

 Stolon thin and membranous, in some j^laces forming sympo- 



dial plates, in others narrow ribbons. Numerous spicules 



in the older part of the stolon. 

 Polypes averaging +mm. in diameter; all of them considerably 



retracted, leaving 2:)rojections on the stolon 1 to l'5mm. 



in height. They stand on an average 2mm. apart from 



one another. 

 Spicules as in (11), only more numerous. 

 Colour, brownish-white. 



(18) Clavularia australiensis. A very small specimen, apparently 



belonging to this species. 



(19) Palythoa anguicoma (?) A very small specimen apparently 



belonging to this species. 



(20) Ammothea thyrscides. Klunzinger " Die Korallthiere des 



Rothen Meeres," p. 30, Part I. 

 This s|)ecimen agrees fairly well with the description given by 

 Klunzinger. 



(21) Alcyonium tuherculosum. Milne Edwards and Haime, Quoy 



and Gaimard, Voyage de I'Astrolabe Zooph., PI. 23, fig. 4. 



(22) Clavularia australiensis. Specimen growing on a Lamelli- 



branch shell. 



(23) Palythoa anguicoma. 



(24) Clavularia australiensis (sp. nov.) Specimen growing on a 



broken piece of Mytilus (?) shell. 

 Stolon formed of thin membranous strands, in some places 



uniting together to form plates. 

 Polypes all completely expanded, 4 to 5mm. long. 

 Colour, white. 

 Spicules — I can find no spicules in this specimen. 



(25) Missing. 



(26) Palythoa anguicoma. 



