BULLETIN 59, UNITED STATES NATIONAL MUSEUM. 



of the correctness of our vuliuitioii of the cliaracters. The followhij,' cUi.ssirication 

 is used in this paper: 



MADREPORARIA IMPERFORATA. 



Family Fi.aheli.id.e. 



Genus Flahelhim. 

 Gardineria. 

 Flacolrochiis. 



Family GAi!YoriivLi.iii).E. 



Genus Desinophylluiii. 



Pnntciidllius. ' 



Deltocijatli »s. 

 Trorhocijiith us. 

 Carijophi/llm. 

 Cyathocenis. 

 Ceralotrochus. 



Family Axtiikmiphyi.mid.e, new. 

 Genus Antbemiphyllia. 



Family Oculinid*. 

 Genus MiK^repora. 



l'":niiily SrvLcU'iicHMD-E. 

 Genus Miiilmcls. 



Fa mil)- I'oci i.i.oi'oki ij^.. 

 Genua PodUoponi. 



Family Orbicelmd.h. 



Genus Li'pUislrea. 

 Ci/phastrea. 



Family Faviid.e. 



Genus (.'(daslren. 

 I'nriit. 



Family Mi'ssid.e. 



(!ienus .I/i(.sw(,. 



Family F"uN'iaiD.?!:. 

 Genus Fiingia. 



MADREPORARIA FUNGIDA. 



Family A<;auiciid.e. 



Genus Parana. 



Leploseris. 

 Sic'plianaria. 

 Psammocora. 

 lintluiadis. 



MADREPORARIA PERFORATA. 



Family EnpsAMMiD.E. 



Genus StephanophyUia. 

 Emlopachy.f. 

 Balaiwjiliyllta. 

 Dendrophyllia. 

 Anisopsammia. 



Family .Vcroporid.e. 



Genus Acrnpora. 

 Monliporn. 



Family I'oitrrin.K. 

 Genus PnriteK. 



Family Favositid.k. 

 Genua Alrmpora. 



One fatuih" is described as new, the Anthemiphylliidiv. The other families have 

 now become more or less traditional. I should like to say that I seriously doubt the 

 affinit}' of Alveoporit with the Paleozoic T^/^vw/Vc*, in spite of the excellent arguments 

 which have been brought forward to maintain that conclusion. I do not, however, 

 know any modern perforate coral to which Alveopora shows in its skeletal characters 

 any close relationship). 



