360 BULLETIN 106, UNITED STATES NATIONAL MUSEUM. 



Dakaria (Schizoporella) condylata Nordgaard, 1906. 



Dakaria magniporata Nordgaard, 1906. 



Dakaria gelida Waters, 1904. 



The known fossil species are : 



Dakaria (Lcpralia) squamoidea Reuss, 1864. 



Dakaria (Cellaria) beyrichi Stoliczka, 1862. 



Dakaria (Schizoporella) subsquammoidca Koschinsky, 1885. 



This genus differs from Phonicosia in a wider sinus of the apertura. Perhaps 

 it may be necessary to introduce here all the Schizoporellae, having the same form of 

 operculum, the same frontal, and provided with lateral avicularia, as long as the 

 special function of the latter is not clearly defined. 



All the species of this genus have not the special form of apertura mentioned 

 by Jullien for Dakaria chevrcuxi. But as this species must enter normally into the 

 new genus we have adopted Jullien's name so as not to encumber the literature 

 with a new term. 



DAKARIA BREVIS, new species. 



Plate 46, fig. 19. 



Description. The zoarium is uni to multilamellar and incrusts shells or 

 bryozoa. The zooecia are distinct, fusiform, short; the frontal is convex and almost 

 smooth, ornamented with very small granules. The aperture is small, transverse; 

 the rimule very wide and little distinct from the anter. The ovicell is salient, 

 globular, elongated, of the same nature as the frontal. There is no median avicu- 

 larium. 



ia=0.05mm. . J 3=0.50-0.60 mm. 



Measurements. Aperture , _ .,_ /ooecia^, -_ ,, OK 



[/a=0.07mm. Us= 0.25-0.35 mm. 



Affinities. The ovicelled zooecia are somewhat larger than the others: their 

 operculum is also slightly larger. We have observed an ordinary calcified zooecium 

 and an ovicelled zooecium presenting the same phenomenon. We had supposed 

 before that these zooecia corresponded to the diseased polypides. 



Dakaria brevis differs from D. laxatu in its smaller zooecial dimensions 

 (Z0=0.50 mm. instead of 0.80 mm.), in a smaller aperture, and in its elongated 

 ovicell. 



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

 North Carolina (rare). 



Holotype.C&t. No. 64062. U.S.N.M. 



DAKARIA LAXATA. new species. 



Plate 4G, fig. 20. 



Description. The zoarium incrusts shells. The zooecia are distinct, elongated, 

 wide, fusiform; the frontal is convex and finely granulated. The aperture is sub- 

 orbicular ; the rimule is very wide and scarcely distinct from the anter. The ovicell 

 is globular, very salient; it is closed by the operculum, for it covers much of the 

 it's surface is granulated like the frontal. No median avicularium. 



