1 86 TABULATE CORALS. 



termediate between Aulopora and Syringopora \ but it seems 

 hardly possible, with our present knowledge, to arrive at any 

 certain conclusions as to its true systematic position. 



Genus NODULIPORA, Lindstrom, 1873. 

 (Ofversigt af Kongl. Vetensk. Akad. Forhandl., No. 4, p. 14, note, 1873.) 



Gen. Char. " Polyparium turbinatum, totum e nodulis 

 minimis contextum, ceterum et forma et septis Favositarum. 

 Epitheca tenuis, longitudinaliter rugosa. Superficies calycigera 

 lata, plana. Calyces insequales, saepe in radios crescentes, 

 obovati, angusti vel circulares, polygonii et curvi. Muri incom- 

 pleti, perforati. Noduli corpore rotundo, processibus tenuibus 

 inter se conjuncti. Partes inferiores vel primariae polyparii 

 materia calcarea consolidatse. Superficies calycigera processus 

 radiciformes emittit." " Species unica N. acuminata, m. in 

 Dalhem, Gotlandia, reperta." 



Obs. I am not aware that Dr Lindstrom has ever published 

 any further description or any figures of this remarkable form ; 

 and as I am altogether unacquainted with actual specimens, I 

 can add nothing to the above generic diagnosis. Judging from 

 this alone, Nodulipora, Lindst, must be regarded as an 

 aberrant member of the Favositidce, with no marked affinities 

 to any other member of this varied family. 



