114 UKCKNT MADRKI'DRAKIA OK THE HAWAIIAN ISLANDS AND LAYSAN. 



It seemed to me that a istudv of tliis kind would l>e important in possibly throw- 

 iiiij liiilit on the value of charactei-s .sui)posed to l)e of family or generic value. 

 Somewhat more than -too specimens were studied; of these about 4:5 were received 

 from Dr. Charles Gravier, of the Museum d'Histoire Naturelle, Paris, the others are 

 the propertv of the United States National JMuseum. This amount of material 

 probably may appeal' Iar<fe, but it is entirely insufficient for the working out of the 

 variations and the delimitation of the ditferent s])ecies. In spite of the insufficiency 

 of till' material, lioweNcr, I trust tliat data of value iiav(> been procured through its 

 careful study. 



CYCLOSERIS. 

 DESCR 1 1 '. K I ) S I'J-X 'I ES (W ( CYCLOSERIS. 



Madrepora patellii Ellis and Solander. 



Fungla cijclolitcs Liimarck. 



Fwujia tenuis Dana. 



Fwjujia glans 1 )ana. 



Fungia heMtgdnalls Milne Eldwards and llaime. 



C'yclomris sinensis Milne Edwards and Haime. 



Fungia elegans Verrill. 



Cycloseris discus Quelch. 



Ct/closeris myeoidcs Alcock. 



Fungia erosa Doderlein. 



Furigiii costidata Ortmann. 

 Di'iderlein does not recognize ("ijcioseris as a valid genus, considering it a 

 .synonym of Fungia. He does, however, recognize a patella group of species and 

 i-efers to it all tlie species of Ci/closerls a!id Diasirls. He refers 6 species to the 

 group, viz: 



F. patella (Ellis and Solander) (>/". temiis Dana+7''. lajxigonalix Milne 

 Edwards and Wmww^t Diaseris fragUis Alcock). 



F. erosa Doderlein. 



F. distorta Michelin (type of Diaseris). 



F. ctjelolites Lamarck (tvpe of Ci/closeris) (>? Diaseris mort< mi Temson- 

 ^Vood). 



F. elegans Verrill. 



/''. eostidata Oi'tmann. 

 Tiie following species, originally l)ased on the Cycloseris form, are said to possess 

 a Diaseris form : 



F. patella (Ellis and Solander). 



F. cyclolites Lamarck. 

 The following specific names are not recognized, nor are they placed in any 

 synonymy: 



Fungia glans Dana. 



CyclmcTis sinensis Milne Edwards and Haime. 



Oyclosei'is discus Quelch. 



Cycloseris mycoides Alcock. 



