CALCAREOUS SPONGES. 795 



Sycantha von Lendenfeld [1891]. 



Type species S. tenella v^on Lendenfeld, {=Sycon tenellum). 

 This genus was retained by Dendy [1892 B], but although the 

 species placed in it by von Lendenfeld is certainly aberi'ant, we 

 agree with Jenkin [1908 B] that it does not merit generic 

 recognition. 



Sycarium Haeckel [1870]. 



Type species S. amjndla Haeckel, (^=Sycon ampulla). 



Sycidium Haeckel [1870]. 



Type species 6'. gelatinosum de Blainville, (^=:Sycon gelati- 

 nosum). 



Sycilla Haeckel [1872]. 



Type species /S'.c?/«iAisc^/s Haeckel, (:=^«if:)Aorisczfs cyatMscus)^ 



Sycinula 0. Schmidt [1868]. 



Type species S. aspera O. Schmidt, { — Leucandra aspera\ 

 This name, strictly speaking, may have priority over Leucandra, 

 but it was only mentioned casually by Schmidt, without diagnosis, 

 although he indicated S. aspera as type of the genus, and it has 

 never been accepted, except by Haeckel for one of his " artificial " 

 genera, whereas Leucandra has come into fairly general use. 

 And further, if the name Leucandra were changed, it apparently 

 should be changed to Leucogypsia rather than to Sycinula. 



Sycocystis Haeckel [1870]. 



Type species *S'. oviformis Haeckel, (^=:Sycon ciliatum). 



Sycodexdrum Haeckel [1870]. 



Type species S. ramosum Haeckel, {=:S'yco7i ramosum). 



Sycolepis Haeckel [1870]. 



Type species *S'. incrustans Haeckel, ( = either Trichogypsia' 

 incrtistans or T. villosa). 



Sycometra Haeckel [1870]. 



Type species S. compressum Fabricius, ( = Grantia coii>2)ressa). 



Syconella Schmidt [1868]. 



Type species S. quadrangtdafa 0. Schmidt, (= Sycon quad- 

 rangidatum). 



Sycophyllum Haeckel [1870]. 



Type species S. lobatum Haeckel, (= Grantia lohata). 



Sycorrhiza Haeckel [1870]. 



Type species S. coriacea Montagu, [ = Leucosolenia coriacea). 



Sycortis Haeckel [1872]. 



Type species S. laivigata Haeckel, [=^Grantia laevigata). 



