784 PROF. A. BENDY AND MR. R. W. H. ROW ON 



3. L. CAPSULA Haeckel. 



Lipostomella capsula Haeckel [1870]. 

 Leiicilla capsula Haeckel [1872]. 



Section B. With large i-adiaJly arranged oxea or 

 trichoxea, but witliout niicroxea. 



4. L. ECHINUS Haeckel. 



Leucuhnis echinus Haeckel [1872]. 



5. L. OXEODRAGMIFERA RoW. 



Leucilla oxeodragmifera Row [1913 MS.]. 



6. L. PRINCEPS Roiv. 



Leitcilla princeps Row [1913 MS.]. 



7. L. PROTEUS Bendy. 



Leucilla proteus Dendy [1913]. 



8. L. UTER FoUjaeff". 



Leucilla uter PolejaefF [1883]. 



Section C. Without large oxea, but with microxea. 



9. L. nuttingi Ih-han. 



Rhabdoderinella niitiingi Urban [1902]. 



10. L. saocharata Haeckel. 



Leucandra saccharata Haeckel [1872]. 



The following species appai^ently also belongs to this genus, but 

 was very inadequately diagnosed : — 



11. L. LEUCONIDES Bidder. 



Sycaltis leuconides Bidder [1891]. 



Family 10. LELAPIID^ no v. 



Dialytince Kirkpatrick [1911 A]. 



Diagnosis. Canal system presumably always leuconoid. Skeleton 

 of the chamber layer containing fibres or bundles of modified 

 sagittal triradiates placed side by side, but not cemented 

 together. Nuclei of collared cells (presumably always) 

 apical. 



This family appears to be a highly specialised oflfshoot from the 

 leuconoid Grantiidse. The presence in Lelapia of distinct sub- 

 gastral sagittal ti-iradiates and the apical position of the nuclei of 

 the collared cells aflbrd very strong evidence in support of this 



