NO. 1401. GENERA OF SIMPLE FUNGID CORALS— VAUGHAX. ■ 407 



I. WALL SOLID, CONDITION OF SEPTA UNKNOWN. 



1. Pheg'matoseris. 

 '2. Microseris, 

 3. Asteroseris. 



1. Genus PHEGM ATOSERIS Milaschewitz/' 



lcS76. P/if^?/(rt/o,s('m"MiLAS(HEwiTZ, Paln'ontoirra])!), XXI, ji. 212. (ienns referred 

 to the "Loplionerune.'^ 



(Jrlglnal generic diagnosis. — "Corallum siniplo. fan-shaped, pedicel- 

 late attached b}^ a narrow base. Calice longitudinally compressed, 

 septa not exsert. Coliuuella absent. The wall is not porous, but 

 l)eg'inning' at the l)ase is covered with ribs, which correspond to the 

 septa.*" 



Type species. — Phegmatoseris flabelliformis Milaschewitz, l*aheonto- 

 g'raphica, XXI, p. 212, pi. l, tigs. 5, 5a. 



Geologic hm'izon and locality. — Jurassic of Nattheim. 



ReinarTis.—\ have been una))le to tind a more detailed account of 

 this genus than that given in the original diagnosis and in the descrip- 

 tion of the type sjjecies. 



2. Genus MICROSERIS de Fromentel. 

 1870. Micrucrris de Fko.mentel, PaU'oiitol. train;., Crt'tace, VIII, Pt. 25, p. ?,G7. 



Origiiud gcut-ric diagr\osis. — '"Corallum hemispherical; the wall 

 horizontal, naked, covered with scattered granulations which are not 

 arranged so as to form ril)s. Septa large, arched, uniting, fusing in 

 the center, where there is a small, round columellar fossa. Synapti- 

 cula rare, but well developed." 



Type species. — Microsevis heuiis-jyherica de Fromentel, Paleontol. 

 frany., Cretace, VIII, p. 36S, pi. lxxx, figs. 1-ld. 



Distrihutioii. — Cretaceous, Cenomian, Mans, France. 



Remarl's. — This genus, according to de Fromentel, differs from 

 Cycloseris "by its general appearance and the al>senceof costie on the 

 lower surface, the^^ being replaced by scattered granulations." He 

 gives no data on the structure of the wall or septa, but his consider- 

 ing it so closely related to Cyclosrris would indicate an imperforate 

 wall and imperforate septa. The irregularly arranged granulations on 

 the base could scarcely occur on a perforate wall, where the granula- 

 tions would naturally follow the courses of the septa. 



« Duncan, Jour. Linn. Soc. London, Zool., XVII, p. 148, misspells this name, living 

 it as J'ltr'iymatoseris. 



