HiLGEXDORF. — Cof t/pfoblnst Hydrouh from Kcrwadcc IshtinJx. 543 



Type in Canterbury Museum, under the name of " A(/laophenia ? x. 

 Kermadec Islands." It is on the base of this specimen that Syntkecium 

 elegans is growing. 



Aglaopheiiia ? y. Fig. 5. 



This is probably another Aglaophenia, but, Hke the last, cannot be 

 identified in the absence of the corbula. It also is 

 probably new. 



Trophosome. — Colony 80 mm. in height, and 

 probably more, as the specimen is obviously in- 

 complete. The base of the hydrocaulus is 3-4 mm. 

 in thickness, but it is incrusted by Pohjzoa and 

 the hydrothecae of an midistinguishable hydroid. 

 Colour of the main stem dark brown, and of the 

 pinnae light horn ; the whole very much branched, 

 giving a tangled mass of pinnae. The hydrocaulus 

 bearing the hydrothecae is divided into very dis- 

 tinct nodes, one opposite the base of each hydro- 

 theca. The hydrothecae are relatively far apart, 

 almost globular, deeply inserted, and have a dis- 

 tinct bend in the middle ; they are much lighter in 

 colour than the hydrocaulus. The thecostome is 

 widely open, and has three teeth on each side. The 

 intrathecal ridge springs from the outer edge. The 

 mesial nematophore is closely applied throughout 

 to whole length to the front wall of the hydro- 

 theca, and opens just at its lip. The lateral 

 nematophores are short, and directed backwards ; they do not reach to the 

 node between the hydrothecae. 



Gonosome. — Not present. 



Hah, — Cast up on Denham Bay beach, Simday Island, Kermadec Islands. 



Type in the Canterbury Museum, under the name of "Aglaophenia? y. 

 Kermadec Islands." 



The following table shows the distribution of the species : — 



Fig. 5. 



Aglaophenia ? y . 

 magnified. 



