44 



I. IJIMA. 



EuRYl'L E 



(IMA, F. E. Sell. 



6. E. auriculare, F. E. S/h. 



Schulze (Chall. Rep. Hex., p. 170. pl. CII). (Rev. Asc. u. Ross., p. 545). 

 Loc. : IS E of New Zealand. 



7. C. tener, F. E. S. 



Schulze (diali. Rep. Ilex., p. 1 72, pl. LXIX). (Rev. Asc. u. Ross., p. 

 541)). 



This species seems to oceuppy an isolated position in this subfamily, parti- 

 cularly on account of the fact that hexactins arc not known to occur among its 

 parenchymal macroscleres. The "aspidoplunhconie" of this species is undoubted- 

 ly closely related to the plunhcome of Lanuginellinœ and, in my opinion, also to 

 what 1 have called clavicome in Leucopsacus skoliodocus and Chaunopltcleila 

 cavernosa. 



Loc. : W. of Tristan d'Acuuha. 



Dermalia with stauractinic or pentactinic autodermalia and larger pentacti- 

 nic hypodermalia. Gastralia, hexactins. Parenchymal megascleres consist oj 

 diactins and of large or medium-sized hexactins. Plumicome always present 

 among intermedia, which for the rest consist of either discohexaster or oxyhexas- 

 er, or of both. 



Caulocalyx, F. E. S. 



ü. 



i.A\r<;i.vELLixj: 



Artificial Key to Genera and Species. 



a'. Firmly attached to solid substratum. No oxyhexaster 

 a" '. Rooted in loose bottom by basal tuft of anchor-like 



Lanugindlapupa. 



spicules. Oxyhexaster present. 

 1/. Dermalia, stauractins. Intermedia in two kinds 



(oxyhexaster and plumicome) 



b''. Dermalia, pentactins. Intermedia in three kinds 

 (oxyhexaster, discohexaeter and plumicome) 



Mehiijimjjha idala. 



Laphocalyi philippinenäs. 



LA NU GINELLA, O. Schm. 

 8. L pupa, 0. Schm. 



