NO. 1401. GENERA OF SIMPLE FUNGID CORALS— VAUGHAN. 401 



maroiu of the calico. Calico shallow, disco itl.'" (Translation of Ger- 

 man diagnosis.) 



Type species: OmpJialophyllia holeHforrnis {Miinstev) = J£ontlivaUla 

 /jolrtiformis Miinstor (Beitr. Geognos. und Petref. siidost. Tirols, PL 

 II, tig-. 9)^'= OmphalophyUia gracilis, e. p. Laube. (S.ynon}^!!}' after 

 Volz.) 



Laul)e cites,^ OmphalophyUia gracilis Miinstor as the type. Volz, 

 in his Korallen der Schichten von St. Cassian,'' says that Laube 

 confused three difierent species under the name Oiaphalophyllia 

 gracilis. Laube gives, on Plate III of his work cited, three figures, 

 5, 5a, and 5b. In the explanation of the tiguros, ho say.^: "Fig, 5. 

 Oirqjhatop>hylHa gracilis Miinstor from the side, a from above, l> very 

 much enlarged cross section of a calice, diagrammatic." According 

 to Volz: 



"(1) Fig. 5 = OmphalophyUia holetiformis Miinstor not Laube. 



"(2) Fig. 5a = Crai^pt'dopJiyUia gracilis Laube. 



"(3) Fig. 5h = J/yriophyllia gracilis LiAnhe. (The septa are repre- 

 sented as black. There is no columella.)" 



From a study of Laube's tiguros I ])eliovo that figs. 5 and oa are two 

 views of the same specimen and that the '' l)lack" in fig. 5b can not 

 represent the septa. If such were the case there would l)o no wall, no 

 columella, and the septa would bo as perforate as in Anahracia. It is 

 m}^ opinion that Laube's figures all represent the same species. The 

 type-species of the genus is represented by Plato iii, figs. 5, 5a, 5b, 

 or, if Volz's contention is true, l)y fig. 5. 



Disfrihutiori. — Triassic, St. Cassian beds, southern Tyrol. 



Remarks. — Volz, in his Korallen der Schichten von St. Cassian (p. 

 04), undertook to redefine OinpJadophyUia. Ho, however, makes no 

 reference to a type-species. Ilis diagnosis is as follows: *' TJtamnas- 

 traeidx of simple (fungioid, discoid, conical, or cylindrical form) or 

 compound growth. The septa are composed of distinctly difl'eronti- 

 ated trabecuhx?; pores are rare. On the septal faces are more or less 

 distinctly horizontal rows of granulations, sometimes also com})act 

 dissepiments. The columella firm and compact; more rarely are small 

 holes recognized in its structure. Synapticula present." Althougli 

 Volz does not say it, his description applies to his O. hoUtifonnis 

 (Miinstor), Plate viii, figs. 1-S. 



The wall is not satisfactorily described. Under O. holetiformis he 

 says: '"The wall is very thin; when preserved it appears externally to 

 bo solid. Covered with numerous weak transverse wrinkles." One 

 is led to suspect that only the epithoca is described. 



« This reference is taken from Volz. I have not l)een al)le to consult Minister's 

 work. 



''Denkschr. Akad. Wis. Wion., Math. Natnrhist. CL, XXIV, p. 251. 

 c Palfeontographica, XLIII, p. 66. 



