806 



BULLETIN 106, UNITED STATES NATIONAL MUSEUM. 

 FRONDIPORA LAEVIGATA. new species. 



Plate 147, tigs. 15-27. 



Description. The zoarium is formed of compressed and dichotomous branches. 

 The fciscicles are formed of two to five tubes; they are little salient and arranged in 

 compact groups or in linear series. The tubes are distinct, separated by a furrow; 

 the peristome is thin, orbicular, or polygonal. The posterior face is convex, striated 

 longitudinally by the tubes. The interfascicular spaces are smooth. 



Variations. The arrangement of the fascicles is quite variable; there is not 

 one which resembles another. They are scattered or in alternate lateral, pluriserial, 

 or monoserial series, very salient or hardly salient. There are never any isolated 

 tubes between the fascicles, as in Frondipora interporosa. 





FIG. 263. Telopora, new genus. 



A. Telopora (Kupercytis) waters! Harmer, 1915. View of ovicelled zoarium, X 12. 

 B-D. Telopora (Supercytis) digitata Waters, 1884. B. Top of view of zoarium, X 6. C. 

 Side view, natural size. D. Basal view, X 2. 



In transverse section (fig. 26) all the tubes are of the same diameter. Between 

 them there are some small pores which appear to be new tubes. The latter 

 promptly attain their normal diameter, as can be seen in longitudinal section (figs. 

 24, 25). The peristomie of the tubes makes a more or less acute angle with their 

 longitudinal axis (figs. 24, 25). There are sometimes diaphragms in the tubes. 



Occurrence. Middle Jacksonian (Castle Hayne limestone) : Wilmington, 

 North Carolina (rare). 



Cotypes.C&t. No. 65436, U.S.N.M. 



FRONDIPORA INTERPOROSA. new species. 



Plate 148, figs. 20-23. 



We have only collected five specimens of this species. It differs from Frondi- 

 pora laevigata in the presence of isolated tubes between the fascicles. 



Occurrence. Middle Jacksonian: Near Loniuls Ferry, South Carolina. 

 Cotypes.Cat. No. 65451, U.S.N.M. 



