222 NEW YORK STATE MUSEUM 



Kionelasma. AVwv, a column, and ''Elaaiia. a plate, in allusion 

 to the prominent pseudocolumella. 



Laccophyllum. il«x;for, a well, and ipbllov, a leaf, in allusion, 

 to the appearance of the central area of the coral in longi- 

 tudinal section. 



Lopholasma. Jo^o-, a crest, and ' 'Ela^im^ a plate, in allusion to 

 the carinae of the septa. 



Mehiscophyllum. J/ryvj^xor, a crescent, and (pu/Mr^^ a leaf, in 

 allusion to the form of the pseudocolumella. 



Odontophyllum. 'Odo'^zoc, a tooth, and cuUo'^, sl leaf, in allu- 

 sion to the denticulate margins of the septa. 



Placophyllum. TlAd^, anything flat or broad, (pO/Jjr^, a leaf, in 

 allusion to the broad tabulae. 



Scenophylliim. J^-^voc, a tent, and <puXXov^ a leaf, in allusion 

 to the tent-like appearance of the tabulae. 



Schoenophyllum. Ixocm)^, a rush, and <puUo>, a leaf, from the 

 appearance of the corallites. 



Sterelasma. Irspsdr^ firm, solid, and IAa<>/jia, a plate, in allu- 

 sion to the filling of the central area of the coral with stereo- 

 plasma. 



Synaptophyllum. lu^a-ra^^ joined together, ipblhr^^ a leaf, in 

 allusion to the lateral processes connecting the corallites. 



Triplophyllura. Tpl-Xoozy triple, and (pokhr^^ a leaf, in allusion 

 to the three septal foveae. 



