394 PROCEEDINGS OF Tin: XATIONAL MUSEVM. voi. xxviii. 



The following- is Ogilvne's recharacterization of Lei)tophyllia : " 

 "Corallum simple, conicil, or oylindro-conical, with superficial 

 calice. Septa numerous, thin, maroins regularly toothed, on the faces 

 rows of granulations that run perpendicular to the septal margin and 

 form pseudo-synapticula. Septa not alwa3's, and then only partialh', 

 perforate. Dissepiments thin, numerous, vesicular, thicker toward 

 the periphery and with the septa forming a pseudotheca. Costal ends 

 of the septa finely toothed. Thin epitheca present." 



As full a discussion of the relations of Lej^dDphyUhi and Tarhlnoserls 

 as is at present possible is given on pp. -110-412. 



3. Genus PROC YCLOLITES Freeh. 

 1890. Pronjclolitof Frecu, Palseontograpliica, XXXVII, \k 64. 



Oriijhial (jciierlc dl<Xgrwsl><. — "Simple, more rarely composed of two 

 fused individuals. Calice deep. Timer structure partly similar to 

 Cydolites. However, the septa rather quickly become solid lamellae, 

 the number of pores Ihat remain open is small and they are confined 

 to the youngest parts of the septa (fig. 11 A). On the faces of the 

 septa are horizontal, elongate dissepiments, but they almost never 

 unite with those of the neighboring septa. True synapticula are rare. 

 Dissepiments fine and numerous." 



Ty2)e sj)ecies. — Procijelolhea trladlcus Freeh, Paheontographica, 

 XXXVII, p. <)4, pi. XVIII (all figs, except 17), text fig., p. 65. 



Distrihxition. — Triassic, Fischer wiese, Gosau, etc., Austria. 



RemarTis. — Freeh says that "The external difi'erences (the deep 

 calice) are scarcely sufficient to separate the genus from Cydolites^ 

 especiall}^ as CyeloUtes undulata possesses nnich external resemblance. 

 However, the presence of synapticula alongside of dissepiments, also 

 the relative rarity of septal pores, constitute sufficient differences. 

 Pi'ocyclolites probably represents, as its name indicates, a predecessor 

 of CyeloUtes. There is no nearer relationship to Haplarxa Milas- 

 chewitz (Upper .Jurassic) (with which D'tplarxa belongs), as the septa 

 of the Jurassic corals are distinctly porous. The septal structure of 

 Leptophyllia'' shows only a remofe resemblance. In it the septal 

 spines originate separately, and are covered with numerous, regularly 

 arranged nodules." 



Freeh i)ublished no observation on the wall, columella, or epitheca. 

 However, information on these structures can be obtained from his 

 figures. The distal ends of the septa are I'epresented as free — they 

 prol)ably arc united by synapticula. Fig. 7 represents a specimen, 

 "wohlerhaltene Aussenseite mit Theka." Apparently there is an 

 incomplete epitheca. Fig. .5, a section across the axis of a specimen, 

 shows no vestige of a columella, nor does fig. 4 show any. 



aPalpeontographica, Sup. II, VII Abtheil., 1897, p. 218. 

 &Ideiii, XXIX, pi. XIV, fig. 9. 



