734 PROF. A. DENDY AND MR. R. W. H. ROW ON 



2. L. FLORiDANA Hcteckel. 



Leucaltis Jloridana Haeckel [1872]. 



3. L. INFEEQUENS RoW. 



Leucetta infrequens Row [1913 MS.]. 



4. L. MiCRORAPHis Haeckel. 



Leucetta primigenia var. microrapMs Haeckel [1872]. 

 Leuconia dura Polejaeff [1883], >Ze Dendy [1892 B]. 



5. L. PRIMIGENIA Haeckel. Type species of the genus. 



Sycothamnios fruticosus Haeckel [1870], fide Haeckel 



[1872]. 

 Lipostomella clausa Haeckel [1870], fide Haeckel [1872]. 

 Leucetta primigenia Haeckel [1872]. 

 Leuconia fruticosa Polejaefi" [1883]. 

 Haeckel's two earlier names are nomina nuda, as they were 

 not accompanied by diagnoses, and we have rejected them, 

 although Polejaeff has revived one of them. 



6. L. PYRiFORMis Dendy. 



Leucetta pyriform,is Dendy [1913]. 



7. L. PROLiPERA Carter. 



Teichonella prolifera Carter [1878]. 

 Leucilla prolifera Dendy [1892 B]. 

 Leucetta prolifera Row [1913 MS.], 



8. L. SOLIDA 0. Schmidt. 



Grantia solida O. Schmidt [1862]. 



Leuconia nivea J. E. Gray \\8'6T],fide Haeckel [1872]. 



Leucaltis solida Haeckel [1872]. 



9. L. TRiGONA Haeckel. 



Leucetta trigona Haeckel [1872]. 



Section B. With large, usually radially arranged oxea, 

 btit without microxea. 



10. L. CARTERi Dendy. 



Leucaltis fioridana var. australiensis Carter [1885-1886]. 

 Leucandra carteri Dendy [1892 B]. 



Section C. With both large oxea and microxea. 



ILL. EXP ANSA Bow. 



Leucetta expansa Row [1913 MS.]. 



The following species is doubtfully assigned to Leucetta : — 



12. L. HOMORAPHis Polejaeff. 



Pericharax carteri var. liomoraphis Polejaeff [1883]. 

 The name carteri cannot be vised for this species, as it is 

 already employed in this genus. 



